300 timing gears
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From: missouri
300 timing gears
i have been looking and can not find what year they started using the fiber timing gears.. i just put a 82 300 in my 71 f100 and was thinking while it was easy to get to i should change the gear to metal if it has the fiber gear in it now.. is there a way to tell besides pulling off the timing cover
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Heh, no worries. I think it's actually a common misconception that it's an EFI era thing. I know I thought the same thing for a long time until I started looking in to buying some after I saw my '84 had them. 
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From: Boise, Idaho
I did too when I got some. Fiber is only to be super quiet. I can deal with a little bit of noise in exchange for strength.
The only thing I thought was odd was when I got steel gears from Comp Cams. Even though I replaced stock steel gears with them, the noise level went through the roof with the whining. Some are just louder than others I guess, even amongst steel ones.
The only thing I thought was odd was when I got steel gears from Comp Cams. Even though I replaced stock steel gears with them, the noise level went through the roof with the whining. Some are just louder than others I guess, even amongst steel ones.
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I have several other 60's and 70's 240 and 300 engines out back. i guess i could just grab a set from one of those engines and slip on mine.. i just wish i knew for sure if it had the fiber gear or not..
.. i may just run it like it is and see what happens..i guess the newer trucks all have fiber gears and still run a long ways.. ups loves the ford 300 and they would not use them if they were a problem
.. i may just run it like it is and see what happens..i guess the newer trucks all have fiber gears and still run a long ways.. ups loves the ford 300 and they would not use them if they were a problem
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From: Boise, Idaho
Most parts sites list them starting in '83, so unless yours was late in the cycle, it's probably steel.
But you're right, they last a loooong time, just like any other. The problem with them is if they go, they just shred, leaving your engine dead in the water. It's a non-interference engine, so you just clean out all the fibers and junk and put on a new set, but the inconvenience is not a good thing.
If you're super concerned, it isn't too much of a chore to pull the timing cover. Usually just the radiator, fan, and then a puller for the harmonic balancer.
It's usually a good idea to give a "new" engine a full gasket treatment anyway.
But you're right, they last a loooong time, just like any other. The problem with them is if they go, they just shred, leaving your engine dead in the water. It's a non-interference engine, so you just clean out all the fibers and junk and put on a new set, but the inconvenience is not a good thing.
If you're super concerned, it isn't too much of a chore to pull the timing cover. Usually just the radiator, fan, and then a puller for the harmonic balancer.
It's usually a good idea to give a "new" engine a full gasket treatment anyway.
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