Timing Gear

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Dec 31, 1969 | 06:00 PM

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Timing Gear

Apr 11, 2001 | 07:50 PM

jessbass

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Joined: Dec 2000

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Timing Gear

Anyone know what the timing gears are made of in the 300 (82' F100)? My only other Ford was a 75 Granada with a 302 and after leaving me on the side of the road late one night I discovered that the timing gear was made from some sort of fiberglass or plastic material. Needless to say, with 90,000 miles on the engine the teeth were almost non existant. I'm approaching 90,000 on my truck and if this is going to be a repeat, I want to replace the gears before I'm stranded.

Apr 11, 2001 | 09:53 PM

ecarter50

Posting Guru

Joined: Jun 2000

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Timing Gear

a 302 has a timing chain that can slip. a 300 has gear drive that can't jump time. the gears are all metal unlike stock timing chains.

Apr 11, 2001 | 10:05 PM

jimarley59

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Joined: Apr 2000

Posts: 29

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Timing Gear

300 big sixes have meshed timing gears (no chain)
back in 86 i put a 300ci in my 71. It came from a junk yard!
My brother has the truck now (i got a 92 big six) he drives it regular. Keep the oil changed an drive!

Apr 11, 2001 | 10:08 PM

jimarley59

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Joined: Apr 2000

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Timing Gear

fyi The gears i have seen do have some kind of phenolic on the teeth. Suppose to quite them down.

Apr 12, 2001 | 08:18 AM

82F100SWB

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Joined: Jan 2000

Posts: 5,330

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From: Dryden, ON, Canada

Timing Gear

Well, there are at least 4 different types of 300 timing gears, steel/steel coarse tooth, steel/steel fine tooth, steel/phenolic, and steel/aluminum, There is no chain to stretch etc. and, because it's a factory 2 gear setup, the cam rotates opposite to the motor.
Evan MacDonald
82 F100 FlareSide ex. 2wd
MAF MPFI HD 300-6
Hedman Hedder
NP435(6.69 low)
NP205
3.55 Geared ARB'd 9"
Dana 44 TTB
31x10.50/15 Goodyear M/T's

Apr 12, 2001 | 06:44 PM

jessbass

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Joined: Dec 2000

Posts: 17

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Timing Gear

Thanks guys for the helpful info. Nice to know that I have one less thing to worry about. Hope everyone enjoys their 300 as much as I do!

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Apr 17, 2001 | 06:48 AM

TallPaul

Post Fiend

Joined: Jan 2000

Posts: 5,860

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From: Metro Detroit (Redford)

Timing Gear

jessbass: We love the 300 I6. I had a '77, an '84, and now have a '95. Love it with EFI. I love this motor so much that I put the old air cleaner sticker from a '67 on it. It says 170 hp and that's about what this '95 would be rated under the rating method used back then. The sticker doesn't show well in this photo, but says "300 cubic inches, horsepower 170" It also has an I6 figure in the middle where the six is on top of the I. Sticker is yellow and red and avail from the FTE store:

https://www.ford-trucks.com/dcforum/User_files/3adc3a905d2d0cdf.jpg