Engine Timing Set Guide for the 1965-1979 Ford LTD
Keep your classic Ford's V8 engine running precisely with the right timing set.
- The original nylon-coated cam gears are a known failure point and should be replaced with an all-metal set.
- A rattling noise from the front of the engine is a critical warning sign of a worn timing set.
- For this vehicle, a quality aftermarket double roller timing set is a significant upgrade over the original parts.
- Ensure you order the correct timing set for your specific Ford V8 engine (e.g., 302, 351W, 390, 460) as they are not interchangeable.
Is Your Ford LTD's Timing Chain on its Last Legs?
The engine timing set in your 1965-1979 Ford LTD is a hard-working group of parts. Over many miles and decades, the timing chain can stretch, and the gear teeth can wear down. A common issue on many Ford V8s from this era was the use of camshaft gears with nylon-coated teeth, which were used to make the engine quieter. Over time, the nylon becomes brittle, breaks off, and can clog the oil pump pickup screen, leading to major problems. If you hear a rattling sound from the front of your engine, especially on startup, it's a strong warning sign that the timing set needs attention.
A Known Weak Point: Nylon Cam Gears
Many Ford V8 engines from the 1970s used a camshaft sprocket with nylon teeth to reduce noise. These are a known failure point. The nylon becomes brittle with age, cracks, and the teeth shear off. This can cause the chain to jump, leading to a no-start condition or engine damage. The broken nylon pieces can also clog the oil pump's pickup tube, starving the engine of oil. If your engine is original, it is wise to assume it has a nylon gear and plan to replace it with an all-metal set.
Choosing the Right Aftermarket Timing Set
For a classic vehicle like the 1965-1979 LTD, a quality aftermarket timing set is often an upgrade over the original factory parts. You have two main choices: standard replacement sets and performance-oriented double roller sets.
- Standard Replacement (Good): Brands like Melling and Cloyes offer excellent OE-quality replacement sets. These are perfect for a stock engine and daily driving. They typically feature a silent-type chain and cast iron gears, providing a durable and quiet solution that is better than the original nylon-toothed gear.
- Performance Double Roller (Better/Best): For engine rebuilds or those seeking maximum durability, a double roller timing set is the best choice. Brands like Ford Performance, Edelbrock, Melling Select Performance, and Cloyes' performance lines offer these kits. They feature a stronger, two-row roller chain and steel sprockets that reduce chain stretch and improve timing accuracy. Many of these kits also offer multiple keyways on the crank sprocket, allowing for adjustable cam timing.
Pro Tip: Match the Part to the Engine
The Ford LTD was available with a wide range of V8 engines, including the 289, 302, 351W, 390, 429, and 460. Timing sets are not interchangeable between engine families. Always verify you are ordering the correct set for your specific engine displacement and year.
| Quality Tier | Price Range | Best For |
|---|---|---|
| Standard Replacement | $29.79 - $60.00 | Stock engines, daily drivers |
| Performance Double Roller | $60.00 - $151.47 | Rebuilt engines, performance builds, maximum durability |
Frequently Asked Questions
What is the difference between a standard and a double roller timing chain?
A standard, or "silent," chain looks similar to a bicycle chain and is designed for quiet operation. A double roller chain has two rows of rollers and is significantly stronger and less prone to stretching, providing more stable and accurate timing, especially at higher RPMs. For most classic Ford V8s, a double roller is a worthwhile upgrade.
Should I replace the timing chain if I'm replacing the water pump?
You will already have the radiator and water pump removed, which is a significant portion of the labor. It's a great time to at least inspect the timing chain for slack. To do this, remove the distributor cap and turn the crankshaft back and forth with a wrench, watching for how much the crank turns before the distributor rotor begins to move. Any significant play indicates a stretched chain. Given the age of the vehicle and the low cost of the part, replacing it is a smart preventative measure.
Do I need an adjustable timing set?
For a stock engine, a non-adjustable set is perfectly fine. Adjustable timing sets, which have multiple keyways on the crankshaft gear, allow you to advance or retard the camshaft timing. This is a feature used by engine builders to shift the engine's power band to a higher or lower RPM range. Unless you are building a performance engine and tuning it on a dynamometer, the standard timing position is what you need.
Are there any recalls on the timing set for the 1965-1979 Ford LTD?
No, there are no active recalls or Technical Service Bulletins (TSBs) from the NHTSA for the timing set on these vehicles. Any issues, like the failing nylon gears, are considered common knowledge due to the vehicle's age.
Technical Specifications
Varies by engine. Common types include silent chain (link-type) and double roller chain. Sprockets are typically cast iron or steel. Performance kits may offer 9-keyway adjustable crank sprockets.
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The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.