Evinrude 40hp Injected 4 stroke problem

Damo 1

Cadet
Joined
Mar 12, 2011
Messages
11
Hey guys,
i have just purchased an new boat with a 2000 model Evirude Injected four stroke to push it... I have done about 5 or six short trips in the past couple of weeks and out of curiosity i pulled the oil cap off and there was a creamy paste in the oil well and in the cap, i removed the fuel filter no water in the fuel, i pulled the dip stick and the fuel has bee getting into the oil some how.. I had it with my local marine engineer last week to have it looked at, they serviced and put a new thermostat , in saying that the motor runs super cold which tells me that fuel will be by-passing the pistons and not burning it properly, ending up in the oil, i have also been told it could be a little diaphram in the fuel pump that has a hole in it.. I gave it a run lastnight and it never missed a beat it hasn't since i owned it, but upon pulling the dip stick it is evident i still have a pretty major problem any one else had this problem?? Cheers in advance Damo..
 

Damo 1

Cadet
Joined
Mar 12, 2011
Messages
11
Re: Evinrude 40hp Injected 4 stroke problem

All sorted thanks to a bit of research on this forum, turned out to be the head gasket, it wasn't sealed good enough from the factory.... :cool:
 

daselbee

Commander
Joined
Jan 20, 2009
Messages
2,765
Re: Evinrude 40hp Injected 4 stroke problem

So it wasn't gas in the oil but water in the oil, right?
 

Damo 1

Cadet
Joined
Mar 12, 2011
Messages
11
Re: Evinrude 40hp Injected 4 stroke problem

So it wasn't gas in the oil but water in the oil, right?

Both, these motors have the water and the gas chambers close together only sealed with sealer and no much of it....
 

daselbee

Commander
Joined
Jan 20, 2009
Messages
2,765
Re: Evinrude 40hp Injected 4 stroke problem

Damo...GREAT! You don't know how much that thread has helped me. I have a 70 horse Evinrude 4 stroke that has water in the oil right now. Until I read the thread, I was absolutly unsure of where to start looking.

Thanks again.
 
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