97 Challenger 1800 twin engine oil in cylinder
Posted 11 October 2012 - 09:14 PM
Is there some way that the injection oil from the reservoir is siphoning in? Oil pump leak? leaking counter balance seal?
Any thoughts would be greatly appreciated.
Posted 10 May 2013 - 07:21 AM
Hi Jim, it sounds like you have bad inner crankshaft seals, if the seals are worm the rotary shaft valve oil will leak to the cylinder
also verify or replace the rotary valve shaft seal as it will let oil into the intake manifold and eventually into the cylinder.
Posted 13 May 2013 - 01:02 PM
Leaking RV seal or center crank seal. Usually not a big deal.
If the compression is good (140-150psi) on both cylinders, I would just run it. When storing the boat for more that 2 weeks at a time, just pinch the oil line with a hose pincher to prevent the oil from leaking into the cylinders.
You just have to remember to remove the hose pincher before cranking the motor.
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