2 replies to this topic

[jimsmith]

I am working on a 97 Challenger 1800. The issue is that one of the engines seems to be getting oil into the cylinderrs after it has been sitting for a while. If you take out the spark plugs and turn it over, the oil will spray out the spark plug hole. it will then start and be fine.
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.

[adventurer]

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.

 

Abdin

[jhjesse]

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.