Timing Chain replacement

Greasy_Holly

Not-quite-so-new-guy
Oct 22, 2020
12
3
Hey yall,
I am going to be replacing the timing chain assembly on my 1981 Buick Regal, 3.8L V6. I was wondering if anyone has the torque specs for all the hardware for bolting the sprockets back on. I'm just trying to rebuild what I can in order to get it driving properly. Also was wondering if anyone knows where I could get new hardware. Im ordering the assembly from RockAuto but they dont include new hardware.
 
Last edited:

83StreetMachine

Master Mechanic
Dec 16, 2011
372
93
Central NJ
For a SBC it's 20 ft lbs. I can't imagine it's different from that to be honest.

Make sure you clean out the threads so there's no oil residue. And use Blue thread locker on the hardware.
 
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Oct 14, 2008
7,471
113
Melville,Saskatchewan
Look up Buick V6 torque specs on google. It varies from make to make. If I used the 20 ft/lbs spec on the Olds 350 I did, the cam gear might be resting against the crank, Olds spec is 60 ft/lbs.
 
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