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Old 04-24-2021, 11:48 AM   #10
johnneilson
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Join Date: Jun 2010
Location: 34.22 N 118.36 W
Posts: 1,054
Default Re: Tight Engine Troubles?

This is not going to be good news, but from experience, necessary.
Pull the motor out and do a disassembly.
I know this is a ton of work, especially after putting it in.
I had one, a "B" that was assembled with lubriplate 20 years ago.
It had hardened in the main oil feed tubes and needed quite a bit of pressure to clean it out. There is no way a non pressurized motor will push the hardened lube out of the bearings.
Best of luck, John
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