Google Groups no longer supports new Usenet posts or subscriptions. Historical content remains viewable.
Dismiss
How much slack in GM 4.3L timing chain?
3 views
Skip to first unread message
Barry Minchey
Apr 24, 2006, 4:38:27 PM4/24/06
to
I started working on my 1989 GMC Safari to repair a coolant leak from
the water pump interface to the block. Saw that the original
crankshaft oil seal was leaking a good bit so I removed the timing
cover. On the tension side the chain is pretty tight, but on the
nontension side, I can wiggle about 3/8" of slack. The teeth of the
sprockets look pretty good but the van has 165K miles. Is there a
tolerance on chain slack? My Haynes/Chilton doesn't call one out.
the water pump interface to the block. Saw that the original
crankshaft oil seal was leaking a good bit so I removed the timing
cover. On the tension side the chain is pretty tight, but on the
nontension side, I can wiggle about 3/8" of slack. The teeth of the
sprockets look pretty good but the van has 165K miles. Is there a
tolerance on chain slack? My Haynes/Chilton doesn't call one out.
Thanks!
Barry
0 new messages