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8upZR1 · 10-24-2006

I have tried starting it without the oil filler cap and it makes no difference. The engine turns over nice and all sounds are normal, even when it ran it sounded good. After it did not start with the valve cover put back on I checked the compression on #6 and it was 0. I have never heard of a problem that causes varying compression but it obviously exists. The lifters are the originals. After the head gasket blew I removed them and put them in a plastic bag full of oil. Never touched them. The 3rd time I took the engine apart I noticed they were locked in the fully extended position. Through the use of extreme force I managed to unlock them. Afterwards they seemed to be in good shape. They rotate and slide in the bores beautifully.

When I have a minute I will remove the cam cover again and re-measure the clearance between the lifter and the cam. If all else fails I will instal a new set of lifters.

10-24-2006	#9
8upZR1 Join Date: Jun 2006 Location: Thunderbolt, Ga. Posts: 253	Re: LT5 technical problem I have tried starting it without the oil filler cap and it makes no difference. The engine turns over nice and all sounds are normal, even when it ran it sounded good. After it did not start with the valve cover put back on I checked the compression on #6 and it was 0. I have never heard of a problem that causes varying compression but it obviously exists. The lifters are the originals. After the head gasket blew I removed them and put them in a plastic bag full of oil. Never touched them. The 3rd time I took the engine apart I noticed they were locked in the fully extended position. Through the use of extreme force I managed to unlock them. Afterwards they seemed to be in good shape. They rotate and slide in the bores beautifully. When I have a minute I will remove the cam cover again and re-measure the clearance between the lifter and the cam. If all else fails I will instal a new set of lifters.