Category Bullnose Bill Answer

How can I fix the rear end offset on my 1980 F100 long box?


Bullnose Bill explaining 1980 F100 rear end alignment issues.

This Q&A session is powered by Bullnose Bill, Bullnose Garage’s advanced AI mechanic.
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Bill says:

Hey there! It sounds like you’ve been doing some great work on your 1980 F100. That offset issue can be a real head-scratcher, but don’t worry, we’ll get to the bottom of it together!

Since you’ve already confirmed that the bed is centered on the frame and the perches are aligned on the axle, let’s explore a few potential culprits:

  1. Axle Housing: Sometimes, the axle housing itself can be slightly warped or bent, which could cause an offset. Make sure to check it thoroughly for any signs of damage or misalignment.

  2. Leaf Spring Alignment: Even with new leaf springs, if the alignment isn’t perfect when they were installed, it can lead to the axle being off-center. Ensure that the spring bushings are seated correctly and that the springs are installed the right way (and that they match in size and specifications).

  3. Shackle Placement: You mentioned swapping out the shackles. Double-check that they’re installed correctly and are the same length as the originals. A difference in shackle length can affect the positioning of the axle.

  4. Frame Issues: It’s also worth inspecting the frame itself. Sometimes, frames can become twisted or damaged over the years, which could lead to an offset rear end. Look for any signs of prior damage or repairs.

  5. U-bolts and Torque: Make sure the U-bolts are properly torqued. If they’re too loose or improperly installed, they can lead to shifts in the axle’s position.

  6. Tire Size and Pressure: While this is less common for causing an offset, ensure that your tires are of the same size and properly inflated. Sometimes, uneven tire pressures can give an optical illusion of misalignment.

If you’ve gone through all that without finding a solution, you might want to take a look at the suspension setup more closely. Sometimes, it’s beneficial to get a second pair of eyes on it, so if you have a buddy who’s handy or even a local shop familiar with vintage Fords, it might be worth asking them for input.

You might also find some useful discussions about similar issues on the Bullnose Ford subreddit or in the Ford Trucks Forum. They can be real treasure troves of information and support.

Let me know how it goes or if you have any other questions! Happy wrenching!


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This answer was written by Bullnose Bill, our AI shophand trained on hundreds of Bullnose-era Ford topics. He knows his way around old Ford Trucks.

As with all of Bill’s answers, it has been reviewed and approved by Ed Zenisek, the man behind Bullnose Garage and a real human being.

While we do our best to keep things accurate, always double-check any repair advice and use proper safety procedures. For real-world walkthroughs and more hands-on content, check out Bullnose Garage on YouTube or visit the BullnoseFord SubReddit.


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What causes the fuel mileage drop in a 1984 Ford F250 6.9 IDI from 20-25 to 15-16?


Bullnose Bill discussing fuel mileage issues in a 1984 Ford F250.

This Q&A session is powered by Bullnose Bill, Bullnose Garage’s advanced AI mechanic.
Have your own question? Ask Bill!

Bill says:

Hey there! It sounds like you’re dealing with a bit of a fuel economy drop on your classic ’84 F250. That can be frustrating, but let’s break it down together and see what might be going on.

Possible Causes for Fuel Mileage Drop

  1. Air Filter: A clogged air filter can restrict airflow, causing the engine to run less efficiently. Make sure it’s clean or replace it if it looks dirty.

  2. Fuel Filter: Just like the air filter, a dirty fuel filter can hinder fuel flow, impacting performance and economy. If it hasn’t been changed recently, that’s a good place to start.

  3. Injectors: The 6.9 IDI is a solid engine, but if the fuel injectors are getting clogged or aren’t functioning properly, they can affect fuel atomization and overall efficiency. You might consider cleaning or replacing them.

  4. Tire Pressure: Sometimes, simply checking your tire pressure can yield surprising results. If your tires are under-inflated, it can significantly impact fuel economy.

  5. Driving Habits: Changes in how you drive can also affect gas mileage. Rapid acceleration, heavy loads, or driving at high speeds can all decrease fuel economy.

  6. Exhaust System: A clogged or damaged exhaust system can restrict the engine’s ability to expel gases, which can lead to decreased performance and fuel efficiency. Make sure there are no blockages or leaks.

  7. Engine Timing: If the timing is off, it can lead to inefficient combustion and lower fuel efficiency. Checking and adjusting the timing could help.

  8. Weight and Load: If you’re hauling heavier loads or added weight, that could definitely make a difference in fuel economy.

Next Steps

  • Start with the easiest and cheapest fixes, like checking the air and fuel filters.
  • Keep an eye on your driving habits and tire pressures.
  • If the problem persists, consider consulting a mechanic who specializes in diesels or older Ford trucks to get a more detailed analysis.

If you’re looking for more tips or a community to engage with, I recommend checking out the Bullnose Ford subreddit at reddit.com/r/bullnoseford. There are plenty of knowledgeable folks who can share their experiences and advice.

I hope this helps you get back to that sweet 20-25 MPG range! Let me know if you have any more questions or if there’s something specific you want to dive into further.


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User:

Which air cleaner do you recommend for improved performance?

Bill avatar

Bill:

Absolutely! For your ’84 F250 with the 6.9 IDI, upgrading the air cleaner can help improve airflow and potentially boost your fuel economy. Here are a couple of options that are popular among enthusiasts:

1. K&N Air Filter:

K&N offers a washable and reusable air filter that can improve airflow compared to the stock filter. It’s designed to increase horsepower and acceleration while also providing excellent filtration. Just remember to clean and re-oil it regularly.

2. Spectre Performance Air Filter:

Another solid option is the Spectre air filter. They offer a variety of sizes and styles, including some that fit right into your existing air cleaner assembly. Like the K&N, it’s washable and reusable.

3. Stock Replacement Filter:

If you prefer to stick with the original setup, you can always go for a quality stock replacement filter. Brands like Motorcraft and Wix make good options that meet OEM standards.

Installation Tip:

When installing a new air filter, ensure that it fits snugly and check for any leaks in the air intake system. A good seal is crucial to preventing unfiltered air from entering the engine.

Upgrading to a high-flow air cleaner can often lead to noticeable improvements in both performance and fuel efficiency, especially when combined with a clean fuel filter and proper maintenance.

If you want to see more about how these filters can make a difference, you might find some useful insights on the Bullnose Garage YouTube channel or other Ford enthusiast forums.

If you have more questions or need specific part numbers, just let me know! Happy wrenching!

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User:

I appreciate your help.

Bill avatar

Bill:

You’re very welcome! If you have any more questions in the future about your Bullnose or anything else, feel free to reach out. Enjoy working on your F250, and happy driving! 😊🚚

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User:

What is the best block heater option for a 6.9 engine?

Bill avatar

Bill:

Great question! Keeping your 6.9 IDI warm during those cold winter months is a smart move, especially if you want to ensure a smooth start and protect your engine. Here are a couple of solid options for block heaters that work well with the 6.9 IDI:

1. Frost Plug Heater

A popular choice for many owners is the frost plug heater, which replaces one of the engine’s frost plugs. This type of heater is efficient and provides even heat distribution. Make sure to choose one that matches the size of your frost plug and is rated for your engine.

2. Oil Pan Heater

Another good option is an oil pan heater. These heaters attach to the bottom of the oil pan and warm the oil, making it easier for the engine to turn over in cold weather. This can be especially helpful for diesel engines like the 6.9, which can be harder to start in freezing temperatures.

Installation Tips:

  • Frost Plug Heater: This will typically involve some engine disassembly, so if you’re not comfortable with that, you might want to seek the help of a mechanic.
  • Oil Pan Heater: They are generally easier to install and can usually be done without removing anything major. Just follow the manufacturer’s instructions.

Where to Buy

You can find these heaters at auto parts stores or online. Brands like Zerostart and Block Heater from companies like Phillips and Frost Plug are commonly recommended.

Remember to always plug in your heater a few hours before starting your engine in cold weather to maximize its effectiveness.

If you’re looking for some visual guides or additional tips, you might want to check out the Bullnose Garage YouTube channel for more insights from the community.

Feel free to ask if you have more questions or need assistance with anything else! Stay warm out there! ❄️🚚

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User:

How can I fix a non-working temperature gauge?

Bill avatar

Bill:

Ah, a non-functioning temperature gauge can be a bit concerning, especially with a diesel like your 6.9 IDI. Let’s troubleshoot the issue together!

Possible Causes for a Non-Working Temperature Gauge

  1. Faulty Sending Unit: The temperature sending unit (or sender) is responsible for transmitting the engine temperature to the gauge. If it’s faulty, the gauge won’t read correctly. It’s worth checking this first.

  2. Wiring Issues: Bad connections or damaged wires between the sending unit and the gauge can cause the gauge to stop working. Inspect the wiring for any signs of wear or corrosion.

  3. Gauge Malfunction: Sometimes the gauge itself can fail. If everything else checks out, you might need to test or replace the gauge.

  4. Ground Issues: A poor ground connection can also lead to erratic or non-functioning gauges. Ensure that the ground wires are clean and securely connected.

  5. Coolant Levels: While less common, if your coolant level is extremely low, it can affect the sending unit’s ability to read temperatures accurately. Always check your coolant levels as part of your troubleshooting.

Troubleshooting Steps

  1. Check the Sending Unit: You can test the sending unit with a multimeter. If it’s not giving the right readings, it may need to be replaced.

  2. Inspect Wiring: Look for any frayed or disconnected wires. Make sure the connections are tight and free of corrosion.

  3. Test the Gauge: If you have access to another gauge (or a diagnostic tool that can read temperature), you can swap it out temporarily to see if the problem lies with the gauge itself.

  4. Check the Ground: Locate the ground connections related to the gauge and ensure they are clean and tight.

Final Thoughts

If you’re still having trouble after checking these items, you might consider consulting a mechanic who specializes in older Fords or diesels for a more in-depth diagnosis. It’s always good to have a second set of eyes when you’re dealing with electrical components!

And if you’re looking for community advice or shared experiences, the Bullnose Ford subreddit at reddit.com/r/bullnoseford is a great place to connect with fellow Bullnose enthusiasts!

Let me know if you have any more questions or if there’s anything else you’d like to dive into!

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User:

Is a 454 engine swap feasible for a Ford truck?

Bill avatar

Bill:

While swapping a Chevy 454 engine into a Ford truck sounds like an intriguing project, it’s quite a significant undertaking, especially with the classic Bullnose models. Here’s a quick rundown of what you’d need to consider:

Key Considerations for a 454 Swap into a Ford

  1. Engine Mounts: The 454 will not bolt directly into your Ford’s engine mounts. You will need to fabricate or purchase custom engine mounts to fit the Chevy engine into your Ford chassis.

  2. Transmission Compatibility: The transmission that mates with the 454 (typically a Turbo 400 or similar) might not align with your existing driveshaft and transmission crossmember. You may need a different transmission or an adapter kit.

  3. Wiring and Electronics: The wiring harness for the 454 will be different from your Ford’s setup. You’ll need to rewire or adapt your existing harness to accommodate the Chevy engine’s sensors and ignition system.

  4. Cooling System: The radiator may not be sufficient for the 454, so you might need a larger one to handle the increased heat output. Also, ensure that the fan shroud fits properly.

  5. Exhaust: Custom exhaust headers or manifolds will likely be necessary, as the stock Ford exhaust will not fit the Chevy engine.

  6. Performance Considerations: A 454 swap can provide significant horsepower and torque, but ensure your rear axle and drivetrain can handle the increased power. Upgrading to a stronger rear end might be necessary.

Legal and Emissions Concerns

Depending on your location, there may be legal or emissions regulations to consider. Check local laws to see if you need to adhere to specific emissions standards with the swap.

Alternative Thoughts

While a 454 swap is certainly doable, many Bullnose enthusiasts prefer to stick with Ford engines or even upgrade to a newer Ford powerplant for better reliability and ease of integration. The 460 big block is a popular choice among Ford fans and might provide you with the power you’re looking for while maintaining some brand consistency.

If you’re set on the 454, make sure to plan thoroughly and perhaps consult with others who have done similar swaps. You can find valuable insights and shared experiences on forums or the Bullnose Ford subreddit at reddit.com/r/bullnoseford.

If you have any more questions or need further assistance with your project, feel free to ask! Happy wrenching! 💪🔧

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User:

What is the ideal size for a straight pipe on a 6.9?

Bill avatar

Bill:

Straight-piping your 6.9 IDI can definitely give it that deep, rumbling sound many truck enthusiasts crave, along with potential performance benefits. However, choosing the right pipe size is crucial for maximizing efficiency and maintaining engine performance.

Recommended Pipe Size

For the 6.9 IDI, a 3-inch diameter straight pipe is generally considered the best option. This size strikes a good balance, offering improved exhaust flow without being overly large, which could lead to a loss of back pressure and negatively impact performance, especially at lower RPMs.

Considerations for Straight Piping

  1. Muffler: If you’re going completely straight pipe, consider whether you want a muffler at all. Some folks love the loud, aggressive sound, while others prefer something a bit quieter. If you want a bit of sound dampening without sacrificing too much performance, a performance muffler can be a good compromise.

  2. Exhaust Layout: Make sure your piping is routed properly to avoid any clearance issues with the chassis, suspension components, or fuel lines.

  3. Heat Management: Straight pipes can run hotter than those with mufflers. Ensure that the exhaust routing keeps heat away from sensitive components.

  4. Legal Considerations: Keep in mind that some areas have noise regulations. A straight pipe can be pretty loud, so check local laws to avoid any potential run-ins with law enforcement.

Installation Tips

  • If you’re doing this yourself, having a pipe bender or a professional exhaust shop can help ensure clean bends and proper alignment.
  • Use high-temperature exhaust clamps and ensure all connections are secure to avoid leaks.

If you’re looking for some visual guidance or tips from others who’ve done a similar setup, the Bullnose Garage YouTube channel might offer some insights on exhaust modifications.

Feel free to reach out if you have more questions or need further assistance! Happy modifying! 🚚💨

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User:

Can you recommend a DPF for a 6.9 engine?

Bill avatar

Bill:

The 6.9 IDI doesn’t come equipped with a Diesel Particulate Filter (DPF) like modern diesel engines do. DPFs are generally found on newer diesel models to reduce emissions and meet stringent regulations. Since the 6.9 IDI was produced in the early 80s, it predates these emission control technologies.

Key Points about the 6.9 IDI and DPF

  1. No DPF Needed: Since your 6.9 IDI doesn’t have a DPF, there’s no need for installation or concern about maintenance for one. You’re already working with a more straightforward system.

  2. Emissions Considerations: While your 6.9 is exempt from DPF regulations, it’s still a good idea to ensure your engine is running efficiently and cleanly. Regular maintenance such as oil changes, air filter replacements, and checking fuel injectors can help keep emissions in check.

  3. Performance Upgrades: If you’re looking to improve performance, you might consider upgrading the exhaust system, using a high-flow air filter, or even looking into tuning options that can enhance power while still maintaining reliability.

  4. Community Support: For more detailed discussions about performance modifications that respect emissions standards, the Bullnose Ford subreddit at reddit.com/r/bullnoseford is a great place to connect with others who share your passion for these classic trucks.

If you have more questions or need further assistance with your 6.9 IDI, feel free to ask! I’m here to help! 🚚✨

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User:

What modifications can make a 6.9 roll coal?

Bill avatar

Bill:

Ah, the classic "rollin’ coal" look! It’s a popular choice for many diesel enthusiasts who want to showcase their engine’s potential. While it’s worth noting that rolling coal can be controversial due to emissions concerns, if you’re set on achieving that distinct plume of black smoke from your 6.9 IDI, here are some ways to do it:

1. Increase Fuel Delivery

One of the primary ways to create more smoke is to increase the amount of fuel the engine delivers during combustion. Here are some methods to do this:

  • Adjust the Injection Pump: By turning up the fuel delivery on the injection pump (often referred to as "tweaking" the pump), you can increase the fuel flow. This should be done cautiously, as too much fuel can lead to excessive smoke and engine damage.

  • Upgraded Injectors: Consider installing larger or performance injectors designed to deliver more fuel. This can help achieve a richer mixture that produces more smoke.

2. Air-to-Fuel Ratio

Reducing the air-to-fuel ratio can also lead to increased smoke production. While the following methods can help, be cautious as improper adjustments can lead to engine issues:

  • Restrict Air Intake: Although not commonly recommended, you may experiment with slightly restricting airflow to the engine. This could be done by modifying the air filter setup. However, be aware that this can adversely affect performance and efficiency.

3. Exhaust Modifications

  • Straight Pipe Exhaust: As mentioned earlier, using a straight pipe exhaust system helps in achieving that desired sound and can also contribute to increased smoke. Without a muffler to restrict flow, the engine can produce more visible exhaust.

4. Tuning

  • ECM or Chip Tuning: While not typical for the 6.9, if you’ve upgraded to a more modern engine control setup (like a later model powertrain), tuning can help adjust fuel maps to produce more smoke.

Important Notes

  • Legal Considerations: Rolling coal can attract unwanted attention, as many areas have emissions regulations. Always be mindful of local laws and the environmental impact.

  • Engine Health: Increasing fuel delivery and modifying the air/fuel mixture can put additional stress on your engine. It’s crucial to monitor engine health and performance to prevent issues down the line.

If you’re interested in more detailed tips or visual guidance, you might want to check out the Bullnose Garage YouTube channel for insights from fellow enthusiasts who’ve modified their trucks.

Feel free to reach out with more questions or if there’s anything specific you’d like to know about your 6.9! Happy wrenching! 🚚💨

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User:

Do you have an image of the stock radio in a 1984 F250?

Bill avatar

Bill:

I’m here to help with advice and information, but I can’t display images directly. However, I can describe the stock radio setup for a 1984 F-250, which might guide you if you’re looking for a replacement or just want to know what to look for.

Stock Radio Description

The 1984 F-250 typically came with a basic AM/FM radio or an optional AM/FM cassette player, depending on the trim level. Here’s what you might expect:

  1. Appearance: The stock radio generally had a simple, rectangular faceplate with push-button presets for easy station selection.

  2. Controls: Basic volume and tuning knobs were standard, along with buttons for AM/FM band selection.

  3. Cassette Option: If equipped with the cassette player, there’d be an additional slot and controls for tape operation.

  4. Location: The radio was mounted in the center of the dashboard, accessible to both driver and passenger.

If you’re restoring your Bullnose and looking for authenticity, you might want to check out online forums or marketplaces dedicated to vintage Ford parts. Websites like eBay or classic car parts suppliers might have stock or NOS (New Old Stock) units available.

For more community insights, the Bullnose Ford subreddit at reddit.com/r/bullnoseford is a great place to ask around for images or even parts sourcing.

If you have more questions about your F-250’s interior or any other aspect, feel free to ask!

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User:

What speaker size is suitable for a 1984 F250?

Bill avatar

Bill:

The 1984 F-250 came with factory-installed speakers that are fairly straightforward to replace or upgrade. Here’s what you need to know:

Speaker Sizes

  1. Front Speakers:

    • Size: 6.5-inch
    • Location: Typically mounted in the doors. If you’re planning to upgrade, you’ll need to ensure the depth of the new speakers fits within the available space to avoid interference with window mechanisms.
  2. Rear Speakers:

    • Size: 6×9-inch
    • Location: If your F-250 is equipped with rear speakers, they would likely be in the cab corners or mounted behind the seats in the extended cab versions.

Considerations for Upgrading

  • Speaker Depth: When upgrading, check the mounting depth of the new speakers to ensure they fit without modification or interference.

  • Sound Quality: Consider speakers with higher sensitivity and power handling for better sound quality, especially if you plan to use an aftermarket head unit or amplifier.

  • Installation: You may need adapter brackets or additional wiring connectors depending on the new speakers’ configuration.

If you’re diving into a full audio upgrade, it’s a good chance to also think about replacing the head unit for more modern features if that suits your style. For guidance on installation or recommendations, you might find valuable insights from others on the Bullnose Garage YouTube channel or the Bullnose Ford subreddit.

If you have more questions or need assistance with installation tips, feel free to ask! 🚚🔊

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User:

Why do my windows fog up in the truck?

Bill avatar

Bill:

Dealing with foggy windows can be a real nuisance, especially if you’re driving your Bullnose in humid or cold conditions. Here are some steps you can take to keep those windows clear and improve visibility:

Causes of Fogging

  1. Humidity: Moisture inside the cab condenses on the cool glass, causing fogging.
  2. Temperature Difference: A warm interior and a cold exterior can lead to condensation on the inside of the windows.

Solutions to Prevent and Clear Fogging

  1. Use the Defrost Setting:

    • Turn on the defroster: This setting directs airflow to the windshield and side windows. It usually utilizes the air conditioning system to dehumidify the air before warming it.
    • Increase Fan Speed: Boosting the fan speed can help clear fog more quickly.
  2. Air Conditioning & Heat:

    • Run the A/C: Even if it’s cold outside, running the A/C helps remove moisture from the air. Combine it with the heater to maintain comfort.
    • Use Fresh Air: Set your ventilation system to bring in fresh air rather than recirculating cabin air to reduce humidity levels.
  3. Manual Moisture Control:

    • Wipe Windows: Keep a microfiber cloth handy to manually clear fog if it forms.
    • Crack a Window: If weather permits, slightly open a window to equalize the temperature and reduce humidity.
  4. Preventative Measures:

    • Check for Leaks: Inspect door seals and window seals for any leaks that might be letting moisture in.
    • Dry Interior: Ensure that the vehicle’s interior is dry. Wet floor mats or seats can contribute to humidity.
    • Use Anti-Fog Products: Apply an anti-fog treatment to the inside of the windows. These products create a thin film that reduces condensation.

Maintenance Tips

  • Inspect the HVAC System: Ensure your heating and ventilation system is working effectively. A clogged cabin air filter (if your model has one) can reduce airflow and make fogging worse.

  • Check Window Seals: Good seals around doors and windows help keep moisture out.

If these steps don’t resolve the issue, it might be worth checking for underlying problems such as a malfunctioning heater core or blocked vents. If you need more detailed guidance, feel free to reach out or check out the Bullnose Garage YouTube channel for visual tutorials.

Let me know if there’s anything else you need help with!

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User:

How can I diagnose a bad heater core?

Bill avatar

Bill:

A failing heater core can cause several issues in your Bullnose, usually related to heating and coolant leaks. Here are some common signs and ways to diagnose a bad heater core:

Symptoms of a Bad Heater Core

  1. Foggy Windows:

    • Persistent fogging, especially when using the defroster, can indicate a heater core issue.
  2. Lack of Heat:

    • If the heater is blowing cold air even when set to hot, the heater core might be clogged or leaking.
  3. Coolant Smell:

    • A sweet, syrupy smell inside the cab often indicates a coolant leak, which could mean the heater core is leaking.
  4. Coolant Leak:

    • Check under the dashboard on the passenger side for wet carpet or coolant pooling. This is a strong indicator of a heater core leak.
  5. Engine Overheating:

    • In severe cases, a leaking heater core can cause the engine to overheat due to a loss of coolant.
  6. Low Coolant Level:

    • If you’re constantly topping off the coolant with no visible external leaks, the heater core could be the culprit.

Diagnosing a Heater Core Issue

  1. Visual Inspection:

    • Look for dampness or coolant on the passenger side floor. A flashlight can help you spot leaks.
  2. Pressure Test the Cooling System:

    • Use a cooling system pressure tester to check for leaks. This test can reveal pressure loss indicative of an internal leak.
  3. Check for Air Traps:

    • Make sure there are no air pockets in the cooling system, as this can affect heater performance and mimic heater core issues.

Replacement Considerations

  • Complexity: Replacing the heater core involves removing a significant part of the dashboard, so be prepared for a bit of a project.

  • Parts and Tools: Ensure you have the right replacement heater core and tools. A repair manual specific to your truck can be invaluable for a DIY job.

  • Professional Help: If you’re not comfortable with the complexity of the job, consider seeking help from a professional mechanic.

If you decide to tackle the replacement yourself, it might be worth checking out the Bullnose Garage YouTube channel for any available tutorials or tips from the community.

Feel free to ask if you have more questions or need further assistance!

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User:

Is it safe to drive with a faulty heater core?

Bill avatar

Bill:

Driving with a bad heater core isn’t ideal and could lead to bigger problems if not addressed. Here’s what you need to consider:

Immediate Concerns

  1. Coolant Leakage:

    • A leaking heater core can lead to a significant loss of coolant, which can cause your engine to overheat. Consistently low coolant levels are a clear sign of trouble and should be addressed promptly.
  2. Visibility Issues:

    • If the core is leaking, it can cause the windows to fog up, impairing visibility. This is not only inconvenient but also a safety hazard.
  3. Cabin Comfort:

    • A malfunctioning heater core means no heat in the cabin, which can be uncomfortable in colder climates.

Potential Risks

  1. Engine Overheating:

    • A loss of coolant can lead to engine overheating, potentially causing serious damage like a blown head gasket or warped engine components.
  2. Interior Damage:

    • Coolant leakage inside the cabin can damage carpets and upholstery, leading to unpleasant odors and potential mold growth.
  3. Escalating Repairs:

    • Ignoring the problem can lead to more extensive and expensive repairs down the line.

What You Should Do

  • Monitor Coolant Levels: Until you can fix the heater core, keep an eye on your coolant levels and top off as needed to prevent overheating.

  • Use a Temporary Bypass: As a short-term solution, you can bypass the heater core by rerouting the heater hoses. This will stop the leak but also eliminate cabin heat. Keep in mind this is just a temporary fix.

  • Plan for Repair: Schedule time to address the heater core issue. Whether you do it yourself or hire a professional, it’s important to get it fixed sooner rather than later.

Driving with a bad heater core isn’t immediately catastrophic, but it’s not something you want to ignore. Addressing it promptly will save you from more significant headaches down the road.

If you need more guidance on bypassing or replacing the heater core, feel free to ask, or check for resources on the Bullnose Garage YouTube channel. Stay safe out there!

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User:

What is the coolant capacity for a 6.9 engine?

Bill avatar

Bill:

For a 1984 Ford F-250, the coolant capacity depends on the engine option. Here’s a general guideline for the coolant system capacities for common engines in these trucks:

Coolant Capacities

  1. 4.9L Inline-6 (300 CID):

    • Approximately 20 quarts (5 gallons)
  2. 5.0L V8 (302 CID):

    • Approximately 16 quarts (4 gallons)
  3. 5.8L V8 (351M/351W CID):

    • Approximately 20 quarts (5 gallons)
  4. 6.9L V8 Diesel:

    • Approximately 32 quarts (8 gallons)
  5. 7.5L V8 (460 CID):

    • Approximately 24 quarts (6 gallons)

Filling and Mixing Tips

  • Mix Ratio: Use a 50/50 mix of antifreeze and distilled water. This balance prevents freezing and boiling, ensuring optimal performance.

  • Bleeding the System: After filling, run the engine with the heater on high to help eliminate air pockets in the system. Check and top off the coolant level as needed.

  • Check the Manual: If you have the owner’s manual, it’s always a good idea to confirm these capacities, as variations might occur based on specific configurations or aftermarket modifications.

Maintaining the correct coolant level and mixture is crucial for keeping your truck running smoothly. If you’ve got any more questions or need further assistance, feel free to ask!



This answer was written by Bullnose Bill, our AI shophand trained on hundreds of Bullnose-era Ford topics. He knows his way around old Ford Trucks.

As with all of Bill’s answers, it has been reviewed and approved by Ed Zenisek, the man behind Bullnose Garage and a real human being.

While we do our best to keep things accurate, always double-check any repair advice and use proper safety procedures. For real-world walkthroughs and more hands-on content, check out Bullnose Garage on YouTube or visit the BullnoseFord SubReddit.


As an Amazon Associate, I earn from qualifying purchases. If you see an Amazon link on my site, purchasing the item from Amazon using that link helps out the Channel.

What are the best shocks for a 1985 Ford F150 300 4.9 single cab?


Bullnose Bill explaining features of the 1985 Ford F150 300 4.9 single cab.

This Q&A session is powered by Bullnose Bill, Bullnose Garage’s advanced AI mechanic.
Have your own question? Ask Bill!

Bill says:

Great, sounds like you’ve got an ’85 F-150 with the venerable 300 inline-six. A solid workhorse for sure. What kind of info or help are you looking for? Whether it’s maintenance, upgrades, or a specific issue, I’m here to guide you through it.


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User:

Which shocks are ideal for a 1985 Ford F150 300 4.9 single cab?

Bill avatar

Bill:

Choosing the right shocks for your 1985 F-150 with the 300 inline-six depends on how you use your truck and what kind of ride quality you’re looking for. Here are some options and considerations:

Stock Replacement

If you’re looking to maintain the original ride feel, go for OEM-style shocks. Brands like Monroe or KYB offer replacement shocks that are designed to match factory specifications.

Upgraded Performance

For improved handling and ride comfort, especially if you do a mix of highway driving and light off-roading, the Bilstein 4600 Series is a popular choice. They offer better damping and control without being too stiff for daily use.

Heavy-Duty and Off-Road

If you’re hauling heavy loads or hitting rougher trails, consider the Rancho RS5000X or Bilstein 5100 Series. These shocks provide increased durability and improved performance in demanding conditions.

Installation Tips

  • Make sure your truck is safely supported before removing any components.
  • Check for any signs of suspension wear, like bushings or mounts, and replace those as needed.
  • Always tighten all fasteners to the manufacturer’s specifications to ensure safety and performance.

Pro Tips

  • Consider pairing your new shocks with upgraded bushings or sway bars if you’re looking to further enhance stability.
  • It’s often a good idea to replace all four shocks at the same time to maintain balanced handling.

By considering these factors, you’ll get the best performance and comfort for your specific needs. If you want to see more about suspension upgrades, there might be a related video on the Bullnose Garage YouTube channel worth checking out. Let me know if you need more details!



This answer was written by Bullnose Bill, our AI shophand trained on hundreds of Bullnose-era Ford topics. He knows his way around old Ford Trucks.

As with all of Bill’s answers, it has been reviewed and approved by Ed Zenisek, the man behind Bullnose Garage and a real human being.

While we do our best to keep things accurate, always double-check any repair advice and use proper safety procedures. For real-world walkthroughs and more hands-on content, check out Bullnose Garage on YouTube or visit the BullnoseFord SubReddit.


As an Amazon Associate, I earn from qualifying purchases. If you see an Amazon link on my site, purchasing the item from Amazon using that link helps out the Channel.

Can I use 1974 351W heads on a 1985 351W? Are the accessory bolt patterns the same?


Bullnose Bill explains the compatibility of Ford 351W heads for truck enthusiasts.

This Q&A session is powered by Bullnose Bill, Bullnose Garage’s advanced AI mechanic.
Have your own question? Ask Bill!

Bill says:

Hey there! Great to hear you’re working on a 351W project. Installing 1974 351W heads on an 1985 351W is a popular upgrade, and it can definitely boost performance. But let’s dive into the details!

Compatibility

  1. Head Bolt Pattern: The head bolt pattern on the 351W hasn’t changed, so the heads will bolt right up to your block without any issues.
  2. Casting Differences: However, be aware that the 1974 heads (especially the earlier models) may have smaller combustion chambers compared to the later versions. This could impact your compression ratio, so make sure to check that out before you commit.

Accessory Bolts

As for the accessory bolt pattern, the front of the heads generally stayed consistent through the years. That means you should be able to use your existing accessory brackets and hardware. However, there can be slight variations depending on the exact year and any modifications made to the engine, so it’s always good to double-check.

Additional Considerations

  • Intake Manifold: If you’re planning to use an aftermarket intake, ensure it’s compatible with the older head design.
  • Valves and Springs: You might want to consider the condition of the valves and springs in the 1974 heads, as they may require a refresh.

If you’re looking for more insights or tips, you might want to check out the Bullnose Garage YouTube channel. They often cover engine swaps and modifications that could give you some visual guidance.

Happy wrenching, and let me know if you have any more questions!


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This answer was written by Bullnose Bill, our AI shophand trained on hundreds of Bullnose-era Ford topics. He knows his way around old Ford Trucks.

As with all of Bill’s answers, it has been reviewed and approved by Ed Zenisek, the man behind Bullnose Garage and a real human being.

While we do our best to keep things accurate, always double-check any repair advice and use proper safety procedures. For real-world walkthroughs and more hands-on content, check out Bullnose Garage on YouTube or visit the BullnoseFord SubReddit.


As an Amazon Associate, I earn from qualifying purchases. If you see an Amazon link on my site, purchasing the item from Amazon using that link helps out the Channel.

How do I connect the throttle kickdown rod on my 1985 Ford F150 with a 302 engine and AOD transmission?


Bullnose Bill explains the throttle kickdown rod setup for a 1985 Ford F150.

This Q&A session is powered by Bullnose Bill, Bullnose Garage’s advanced AI mechanic.
Have your own question? Ask Bill!

Bill says:

Hey there! Sounds like you’ve got a sweet setup with your ‘85 F150 XLT Lariat. The 302, combined with that cam and Edelbrock carb, should give you a nice boost in performance. Let’s get that throttle kickdown rod hooked up!

Connecting the Throttle Kickdown Rod

  1. Locate the Kickdown Arm on the AOD Transmission:

    • First, find the kickdown lever on the driver’s side of the AOD transmission. It’s usually a small arm that can pivot. Make sure you have enough room to connect the rod without any obstructions.
  2. Connect to the Carburetor:

    • On your Edelbrock Thunder ASV 600 carburetor, you’ll want to find the throttle linkage. There should be a hole in the throttle arm for the kickdown rod.
    • If you don’t see a designated hole, you might need to attach it to a point on the throttle arm that allows for proper travel while still giving full throttle when you push the pedal down.
  3. Adjust the Length of the Kickdown Rod:

    • Ensure the rod is the right length to connect the carburetor and the transmission without being too tight or too loose. If it’s adjustable, set it so that the transmission kickdown lever can go to its full range of motion.
  4. Set Up Proper Free Play:

    • There should be a little bit of free play in the kickdown rod. You want to ensure that the throttle can open fully without the rod being pulled taut. A common rule of thumb is to have about 1/8 to 1/4 inch of free play.
  5. Test the Setup:

    • After connecting everything, start the engine and test the throttle. Shift through the gears and make sure the kickdown is functioning properly. You should feel a noticeable downshift when you accelerate hard.

Quick Tips

  • Check for Binding: Make sure there are no binding points in your linkage. A smooth connection is crucial for operation.
  • Consult the Manual: If you have a service manual for the AOD or the carb, it can provide more specific details about the installation.
  • Community Support: Don’t forget, if you want to share your experiences or ask for tips from other Bullnose enthusiasts, the Bullnose Ford subreddit (reddit.com/r/bullnoseford) is a great resource!

Feel free to ask if you have any more questions or need further clarification. Happy wrenching!


This conversation had no additional replies.



This answer was written by Bullnose Bill, our AI shophand trained on hundreds of Bullnose-era Ford topics. He knows his way around old Ford Trucks.

As with all of Bill’s answers, it has been reviewed and approved by Ed Zenisek, the man behind Bullnose Garage and a real human being.

While we do our best to keep things accurate, always double-check any repair advice and use proper safety procedures. For real-world walkthroughs and more hands-on content, check out Bullnose Garage on YouTube or visit the BullnoseFord SubReddit.


As an Amazon Associate, I earn from qualifying purchases. If you see an Amazon link on my site, purchasing the item from Amazon using that link helps out the Channel.

What are the best methods to increase a 260ci engine’s power to 340hp in Ford trucks from 1980 to 1986?


Bullnose Bill outlines performance tips for 1980-1986 Ford trucks.

This Q&A session is powered by Bullnose Bill, Bullnose Garage’s advanced AI mechanic.
Have your own question? Ask Bill!

Bill says:

Ah, the classic power quest! Getting 340 horsepower out of a 260 cubic inch (ci) engine is quite ambitious but not impossible, especially if you’re willing to put in some work and invest in a few key upgrades.

Steps to Achieve 340hp from a 260ci Engine

  1. Upgrade the Engine Components:

    • Cylinder Heads: Consider swapping to performance cylinder heads designed for your engine. Look for high-flow options to improve airflow.
    • Intake Manifold: A high-performance intake manifold can significantly boost power. Choose one that matches your intended use—either a single-plane for high RPMs or a dual-plane for better low-end torque.
    • Camshaft: Upgrading to a performance camshaft can optimize the engine’s power band. A cam with a longer duration will increase horsepower but may sacrifice some low-end torque.
  2. Fuel System Enhancements:

    • Fuel Injectors: If you’re going for a fuel-injected setup, larger injectors will help support the increased horsepower.
    • Fuel Pump: Ensure your fuel pump can supply enough fuel for the increased demand. A high-performance pump is essential.
  3. Exhaust System Upgrades:

    • A high-flow exhaust system, including headers and a performance muffler, will help expel exhaust gases more efficiently, leading to better performance.
  4. Forced Induction:

    • If you’re open to more aggressive modifications, adding a supercharger or turbocharger can be a game-changer. This approach can push your horsepower significantly while maintaining engine reliability.
  5. Tuning:

    • After all the modifications, getting a proper tune is critical. A dyno tune will ensure that your engine runs optimally with the new parts, maximizing power while keeping it reliable.

Just a Note

Keep in mind that achieving such a power level may require more than just bolt-ons; it could involve some internal engine work, like upgrading pistons and rods, especially if you want to maintain reliability.

Community Resources

For more advice and tailored suggestions, you might want to check out the Bullnose Ford subreddit or forums such as F150 Forum and Ford Trucks Forum. You’ll find plenty of enthusiasts who’ve tackled similar projects!

These classic engines can be a joy to work on, and with the right modifications, you’ll be well on your way to reaching that horsepower goal. If you have more specific questions about any of those steps, feel free to ask!


This conversation had no additional replies.



This answer was written by Bullnose Bill, our AI shophand trained on hundreds of Bullnose-era Ford topics. He knows his way around old Ford Trucks.

As with all of Bill’s answers, it has been reviewed and approved by Ed Zenisek, the man behind Bullnose Garage and a real human being.

While we do our best to keep things accurate, always double-check any repair advice and use proper safety procedures. For real-world walkthroughs and more hands-on content, check out Bullnose Garage on YouTube or visit the BullnoseFord SubReddit.


As an Amazon Associate, I earn from qualifying purchases. If you see an Amazon link on my site, purchasing the item from Amazon using that link helps out the Channel.