LT1 out of time?
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Joined: Nov 2013
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LT1 out of time? Ok, so i was goin down the road, got on it a little bit, check gauges light came on and car shut off. Tried starting it again and it would crank but would not start. I tore down to the timing chain/gears and the chain and gears are not broken. Chain is a bit loose. Could it have jumped timing? Any other suggestions on what the problem could be?
The chain is pretty much always loose, you are the first person I have ever even heard ask this question in more than a decade on multiple LT1 forums. Jumping time is not your problem.
What condition is the distributor in? Since it is a little more hassle and expense people like to ignore it completely and then when that tuneup item fails due to neglect they curse it.
What condition is the distributor in? Since it is a little more hassle and expense people like to ignore it completely and then when that tuneup item fails due to neglect they curse it.
Although I don't see the logic behind it, for some reason the LT timing chains are loose. My '96 had about 30K miles on it 9-10 years ago, and while removing the front cover to replace the leaking seals, I noticed the chain had what appeared to be a lot of slack. I bought a new Cloyes timing chain/gear set and installed them. They had just as much slack.....
I can't imagine ripping the timing cover off an engine just because it died going down the street. Damn! If you ever wonder if the timing chain jumped simply pull a spark plug and check the compression. They always jump toward retard. If it only pumps about 50 psi, good chance the chain skipped a tooth.
Pretty much never happens with any SBC. Not enough room inside the timing cover. You would wear through the cover first. Seen that a lot over the years.
Single row timing chains feel lose after 20 or 30 though. Perfectly normal.
Older Pontiac & Olds engines would jump if they had enough miles on them. I used to replace my Pontiac & Olds chains at. 100,000 miles. People that didn't change oil would see them jump under 100,000.
Pretty much never happens with any SBC. Not enough room inside the timing cover. You would wear through the cover first. Seen that a lot over the years.
Single row timing chains feel lose after 20 or 30 though. Perfectly normal.
Older Pontiac & Olds engines would jump if they had enough miles on them. I used to replace my Pontiac & Olds chains at. 100,000 miles. People that didn't change oil would see them jump under 100,000.
Teching In
Joined: Oct 2011
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I am actually having a similar issue right now. I installed a new delphi opti and electric water pump. Took the car out once on a short run for a few miles and everything was good. Took it out again pulling out running threw 1st, 2nd, and hit third and it just died. The car has no spark and the chain is fine. Trying to figure out what to look at next.
