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Old 24-09-2010, 20:30   #1
Marine Service Provider

Join Date: Oct 2007
Boat: Endeavour 42CC
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Rear Main Seal Leak

Looks like I have a slight leak at the rear main seal on my Perkins 4.154. It will not be easy to pull the engine/trans to make the repair.

Anything I can do to slow/stop the leak? All the fasteners are very tight.
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Old 24-09-2010, 20:33   #2
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Here's my standard answer. There is a slim chance the crankcase blow-by vent tube is clogged. That can force oil out. Slim chance, but super easy to check. I fixed a leaky engine once this way...
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