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Re: L134 problem

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Posted by Sam on August 27, 2002 at 07:10:48:

In Reply to: Posted by on August 26, 2002 at 17:26:31:

: This engine idles great until it come up to running temp, then #3 cylinder goes dead. I have
: changed plugs, wires, rotor, cap, and even swapped out the distributor with another one. I have
: checked the compression 125 cold-- 100 hot it was even on all cylinders. I also checked the
: valve adjustment and it was OK . I loosened up #3 valves thinking it must be tighting up when
: it warms up. The valve springs seemed to be OK ( no broken ones) . This problem seemed to
: happen all at once , It ran great before. Could the valve seat be raising up and not letting the
: valve close? Nothing I have done has helped.
: Jeff

You said you checked the compression when it was hot, I doubt the problem is a valve if the compression was ok then. If the valve was not sealing, the compression would not have been the same in #3. I think your problem is something else, maybe a warn lobe on the distributor, check the spark on #3 when the engine is hot.

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