Essential Guide to the Ford Country Squire Engine Timing Set (1969-1975)
Don't let a worn-out timing set sideline your classic Ford wagon; learn how to choose the right replacement.
- You MUST identify your specific engine (e.g., 351W, 400, 460) before ordering; the part is not one-size-fits-all for the Country Squire.
- Any aftermarket all-metal timing set is a significant reliability upgrade over the original factory part with nylon teeth.
- While you have the timing cover off, it is highly recommended to also replace the water pump and front crankshaft seal.
- If replacing an original nylon gear, be aware of a potential spacer that may need to be discarded with the new all-metal gear.
Is Your Country Squire's Timing Failing?
The original timing sets in these Ford engines had a known weakness. To keep the engine quiet, Ford used a camshaft gear with nylon-coated teeth. After decades of heat and use, these nylon teeth become brittle, crack, and can break off. When this happens, the timing chain becomes loose, leading to poor engine performance. In a worst-case scenario, the broken nylon pieces can clog the oil pump pickup screen, starving the engine of oil. Any modern aftermarket replacement with all-metal gears is a significant upgrade in reliability.
Key Symptoms of a Bad Timing Set:
- Rattling or Slapping Noise: A loose timing chain can slap against the inside of the timing cover, creating a distinct rattling sound, especially when the engine is idling or during startup.
- Engine Misfires and Backfiring: When the chain stretches or jumps a tooth, the camshaft and crankshaft fall out of sync. This can cause the engine to run rough, misfire, or backfire through the carburetor.
- Unstable Ignition Timing: If you check the ignition timing with a timing light, a worn chain will cause the timing marks to jump around erratically.
- Metal or Plastic in Oil: During an oil change, you might find small pieces of nylon from the old cam gear or metal shavings in the oil pan, which is a sure sign of a failing component.
Choosing the Right Aftermarket Timing Set
Pro Tip: The most important step is to correctly identify your engine. From 1969 to 1975, the Country Squire could have been equipped with a 302, 351W, 351C/M, 400, 390, 429, or 460 engine. The timing set is specific to the engine family, NOT the vehicle. Check the VIN tag or engine block casting numbers to be certain before you order.
Aftermarket timing sets for your classic Ford are generally divided into two categories: standard replacement and performance.
Good: Standard Replacement Sets
These are your go-to for a stock or daily-driven wagon. They are designed to meet or exceed original specifications and, most importantly, feature durable all-metal gears that won't degrade like the factory nylon ones. Brands like Cloyes, Melling, and INA fall into this category. They are trusted names in the industry for providing reliable, long-lasting parts that solve the original design's weak point.
Better: Performance & Heavy-Duty Sets
If you have a modified engine or simply want the most durable option, look at performance sets. These often feature a 'double roller' chain, which is stronger and stretches less than a standard 'link-belt' style chain. Brands like Melling Select Performance, Edelbrock, and Ford Performance offer these upgraded kits. Many performance sets also have multiple keyways on the crank gear, allowing for adjustments to camshaft timing to optimize performance—a feature useful for engine builders.
Aftermarket Timing Set Cost
| Quality Tier | Estimated Part Cost | Best For |
|---|---|---|
| Standard Replacement (Cloyes, Melling, INA) |
$30 - $70 | Stock engines, daily drivers, reliability upgrade |
| Performance / Double Roller (Edelbrock, Melling Select, Ford Performance) |
$70 - $152 | Modified engines, heavy towing, maximum durability |
Frequently Asked Questions
Do I have to replace the original nylon gear?
Yes. If your engine still has the original timing set with nylon teeth, it's not a matter of if it will fail, but when. Replacing it with an all-metal set is one of the most important reliability upgrades you can make for these engines.
What's the difference between a standard chain and a double roller?
A standard 'link-belt' or 'silent' chain is what came from the factory and is fine for stock applications. A double roller chain is physically stronger, with two rows of rollers, and is less prone to stretching over time. It's considered a heavy-duty upgrade, ideal for performance engines or for maximum peace of mind.
Should I replace anything else at the same time?
Yes. The job requires removing the water pump and timing cover. It is the perfect time to replace the water pump, timing cover gasket, and the front crankshaft seal. Inspect the harmonic balancer for damage or rubber deterioration as well.
What is the 'camshaft spacer' issue I've heard about?
The original Ford nylon cam gear required a separate steel spacer behind it. Most modern all-metal replacement gears have this spacer thickness built into the gear itself. If you install a new gear without removing the old, separate spacer, it will cause misalignment and rapid failure. Always follow the new part's instructions.
Technical Specifications
Fitment is dependent on the specific engine installed in the vehicle. Common V8 engines for this period include the Ford FE series (390), Ford 385 series (429, 460), Windsor family (302, 351W), and 335 series (351C, 351M, 400). Each engine family requires a unique timing set.
We Have This Part in Stock
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.