The Ford Barn

NoahVail · 06-03-2022, 09:08 PM

I have a 1969 ford FE that has been bored over sometime in it's life and now the timing chain needs to be replaced. I bought a brand new stock cloyes chain and stuck it in. It had miles of slop. Slightly worse than the one i took out.

I contacted their customer support and the service manager said that maybe it had been lined bored. and that I would need an undersized chain either .010 or .005, and a measuring procedure. I followed it with a set of good quality calipers and I can't seem to get any good results.

The cam nub (for lack of the proper term) and the crank seem to be on different planes. Where the nub is proud of the block is right where the tapper is on the crank. The measurement i got doing it anyway says that i need a .010 under chain.

I thought i'd be extra clever and stick a bolt in the camshaft and use that for my measurements. The only problem is that it says that I should be able to use a standard timing chain. It occurred to me that the bolt hole may not precisely centered on the cam. The gear locates on the nub, and not the bolt.

Do you guy's know how i could shop for undersized sets locally? The only things i can find are fancy racecar billet chains that i really don't need (150-200$). I just drive this car to work, and i'd like it to not run like absolute trash.

The size of chains i need are. 5.034" and 5.039" for the undersized ones. Or should i just buy another stock chain? The timing gear sizes match exactly with the ones i pulled out of the engine. The original one i pulled out was a factory nylon gear as well.

06-03-2022, 09:08 PM	#1
NoahVail Member Join Date: Apr 2019 Posts: 69	Ford FE timing chain questions I have a 1969 ford FE that has been bored over sometime in it's life and now the timing chain needs to be replaced. I bought a brand new stock cloyes chain and stuck it in. It had miles of slop. Slightly worse than the one i took out. I contacted their customer support and the service manager said that maybe it had been lined bored. and that I would need an undersized chain either .010 or .005, and a measuring procedure. I followed it with a set of good quality calipers and I can't seem to get any good results. The cam nub (for lack of the proper term) and the crank seem to be on different planes. Where the nub is proud of the block is right where the tapper is on the crank. The measurement i got doing it anyway says that i need a .010 under chain. I thought i'd be extra clever and stick a bolt in the camshaft and use that for my measurements. The only problem is that it says that I should be able to use a standard timing chain. It occurred to me that the bolt hole may not precisely centered on the cam. The gear locates on the nub, and not the bolt. Do you guy's know how i could shop for undersized sets locally? The only things i can find are fancy racecar billet chains that i really don't need (150-200$). I just drive this car to work, and i'd like it to not run like absolute trash. The size of chains i need are. 5.034" and 5.039" for the undersized ones. Or should i just buy another stock chain? The timing gear sizes match exactly with the ones i pulled out of the engine. The original one i pulled out was a factory nylon gear as well.