What happens when your timing chain breaks?
Thread Starter
Race Director
Joined: May 1999
Posts: 14,267
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From: Plymouth MI Formerly Milford, MA MI
W. Detroit Events Coordinator
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What happens when your timing chain breaks?
:cry
Safety Car
Joined: Aug 2000
Posts: 3,507
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From: Easton CA
Re: What happens when your timing chain breaks? (L98Terror)
Man... that is one sad picture. I am assuming since you didn't show the tops of the pistons that none of them were damaged or you just haven't gotten that far into it yet?
Excuse me while I go outside and :U
Excuse me while I go outside and :U
Race Director
Joined: Jun 1999
Posts: 14,924
Likes: 9
From: Merritt Ils Fl
Re: What happens when your timing chain breaks? (Oly)
Just wondering,how many miles on the chain? Was it stock or aftermarket? What were you doing when it let go? No matter what cauesd it, thats some sad looking valves.
Thread Starter
Race Director
Joined: May 1999
Posts: 14,267
Likes: 1
From: Plymouth MI Formerly Milford, MA MI
W. Detroit Events Coordinator
Cruise-In VI Veteran
Cruise-In VII Veteran
Cruise-In VII Autocross Champ
Re: What happens when your timing chain breaks? (Oly)
Man... that is one sad picture. I am assuming since you didn't show the tops of the pistons that none of them were damaged or you just haven't gotten that far into it yet?
Excuse me while I go outside and :U
Excuse me while I go outside and :U
Le Mans Master
Joined: Mar 1999
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From: Fort Worth Texas
2024 Corvette of the Year Finalist - Unmodified
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Former Moderator
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Re: What happens when your timing chain breaks? (L98Terror)
Been there! Done that! But my chain didn't break, it just stretched and then slipped a few teeth. I had a bunch of bent valves (7 exhaust valves) and some small dents in my forged pistons. My machine shop did the same thing, cleaned up the pistons and then rebuilt the rest of the motor. It was a mild rebuild, but still ran a very traction limited 13.7 @ 100 in my otherwise stock '85.
here is how my pistons looked:
and the rockers where the bent valves were:
and the timing gear with some missing teeth:
a thousand bucks and a bunch of work later and I fixed that $25 timing chain set!!!!
here is how my pistons looked:
and the rockers where the bent valves were:
and the timing gear with some missing teeth:
a thousand bucks and a bunch of work later and I fixed that $25 timing chain set!!!!
Thread Starter
Race Director
Joined: May 1999
Posts: 14,267
Likes: 1
From: Plymouth MI Formerly Milford, MA MI
W. Detroit Events Coordinator
Cruise-In VI Veteran
Cruise-In VII Veteran
Cruise-In VII Autocross Champ
Re: What happens when your timing chain breaks? (M2001)
Cloyes double Roller, it's the same one LPE sells although I got it from summit
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Le Mans Master
Joined: Jul 2001
Posts: 6,252
Likes: 2
From: Silicon Valley Kalifornia
Re: What happens when your timing chain breaks? (L98Terror)
Were you running the stock 'nylon' cam gear?? They aren't recommended for any reliable hi-perf use. I run the iron gear...a little noisier but well worth it.
