Re: 9r72 low compression bottom cyl

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October 24, 2018 at 11:54 pm #84941
LLOYD LAUTNER
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    Heat up the block using HOT water from your sink and keep turning it over with lube in the cylinders. This allows the rings to expand in the bores and potentially free themselves. Has worked for me numerous times in the past and requires no disassembly. Takes a LOT of hot water slowly poured over the block to heat it up, but costs nothing and easy to do.