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 Timing gear question.

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Name : Larry
Age : 61
Location : Oakland Gardens, NY
Joined : 2007-01-23
Post Count : 1565
Merit : 109

PostSubject: Timing gear question.   Thu Oct 06, 2011 5:26 pm

Just a question on the timing gears in our engines. I know on alot of the older engines that I am familiar with, the OEM cam gear had nylon or plastic tips on the teeth. My question is, do any of the 3800 engines have the same thing, and if not, when did they discontinue using them. On our older engines, the tips usually break off and end up in the pan. Anyone know?

98 Riviera SC3800  All stock except gutted air box.
1970 Buick GS455 Stage1, TSP built 470BBB, 602HP/589TQ
Best MPH, 116.06 MPH, Best ET, 11.54
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Name : Matthew
Age : 31
Location : Florida
Joined : 2007-01-17
Post Count : 4392
Merit : 101

PostSubject: Re: Timing gear question.   Thu Oct 06, 2011 8:05 pm

Last time i had the front of my motor apart it was all metal teeth. Not sure when that changed.

1996 with 254k miles, L32 4" FWI -> ported N* -> Ported Gen V w/3.0" Pulley, Stage 3 Phenolic I/C, ZZP FMHE, 1.84 RR, Headers and 3" pipe to mufflers, F-body brakes, and lowered on Eibachs. -RIP
AMG C400 White on black -daily
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Name : Derek
Age : 46
Location : Reading, MA
Joined : 2007-01-31
Post Count : 7717
Merit : 109

PostSubject: Re: Timing gear question.   Fri Oct 07, 2011 1:16 pm

I can't recall if the S1 3800s had the nylon teeth but all of the Series II 3800s have been metal. I honestly haven't seen a timing chain failure in a SII 3800.

As I recall it was only the old RWD Buick V8s that had the nylon cam gear. Don't know if the turbo 6 3.8s had metal or nylon.
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Riviera Performance ::   Supercharged 3800 Tech :: Series II Engine & Transmission-
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