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Old 03-06-2020, 06:36 PM   #9
ss3011
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Default Re: Problem with lash closing up

Quote:
Originally Posted by Bob Mulry View Post
What was your EGT on that pull????

Stretching the valve or sinking the seat??????
If the valve was stretching due to getting really hot , I agree this could be a cause . This engine runs at WOT on the dyno for a very short time . A test is a sweep test lasts only about 10 seconds at WOT . So I have a hard time thinking that these valves get hot enough to stretch . Anything is possible . Don't have EGT's running , but the O2 sensors are saying the A/F ratio is around 12.8 .
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