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Old 09-22-2019, 10:00 PM   #14
snappydon
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Join Date: Oct 2015
Location: Hoodsport WA
Posts: 110
Default Re: 1937 85hp cylinder sleeve possibly leaking water into the pan?

Interesting development today...started cleaning the old pan gasket off block rails and the 2 rear soft plugs in the rail disintegrated as soon as I touched them with the scraper.


They APPEARED to be solid, but as soon as the gasket was removed they came apart like taking the lid off a Copenhagen can. Pretty obvious that water was leaking around the edges of the flat portion of the soft plug. But the leak was hidden by the gasket overlapping the plug edges.


That makes me SOOOO happy!



Moral of the story...I'll never trust the integrity of a soft plug again, without trying to poke at it to be sure.
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