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Old 07-03-2021, 10:17 AM   #36
nkaminar
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Join Date: Jan 2012
Location: Western North Carolina
Posts: 3,904
Default Re: Mystery Engine Knock

I am trying to think of how you might loosen up the lifter without taking it out. It may be possible. Try removing the valve cover, removing the valve spring keeper and spring, and tying up the valve. Then lift the lifter with the camshaft by moving the engine into that position. Then put a heavy-duty rubber band around the lifter and turn it by hand or with a drill motor until it loosens up. May take a long time. You can make a heavy-duty rubber band by cutting a slice out of an old inner tube.
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