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Old 01-03-2018, 01:59 PM   #97 (permalink)
grabowski
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Join Date: May 2017
Location: Colorado
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Quote:
Originally Posted by aardvarcus View Post
The engine ran fine, but it was making a thumping noise out of the intake. I am guessing it is a valve not opening, so I will have to pull a bunch of stuff to get back to the valve covers off to have a look. Hopefully it will be a simple fix and not require pulling the heads. Note I never pulled the valvecovers before swapping this engine, the bottom end looked so clean I assumed the rest was in similar condition.
I had the same situation with my military takeout. With a long screwdriver on my ear, I was able to find out which hole was unhappy, #7 in my case. You do not pull the heads to R&R the lifters! Be very careful removing the valve cover so not to bend it. These VCs do not use gaskets, use The Right Stuff 'glue' for the best results.
If you have a point and shoot IR thermometer, once the engine is up to operating temps, you can use that to find the bad hole as well.
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