mix of gasoline and oil in crank case

AlexS

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Joined
Dec 19, 2003
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5
HI ALL!<br />Motor Evinrude 70<br />I have a mix of gasoline and oil in crank case. Because of it the level of oil in crank case constantly raises. What to do?
 

OBJ

Supreme Mariner
Joined
Dec 27, 2002
Messages
10,161
Re: mix of gasoline and oil in crank case

Hi Alex....<br /><br />Hey, could ya' give us a year or better yet a model number on yer shaker? And I ain't real sure what ya' mean by the oil level in the crank case. Is this a four stroke engine???
 

JB

Honorary Moderator Emeritus
Joined
Mar 25, 2001
Messages
45,907
Re: mix of gasoline and oil in crank case

Alex.<br /><br />I assume that you have the Suzuki-made EFI 4 stroke engine.<br /><br />There are several things that can cause gasoline to migrate to the crankcase, from unseated rings to running too cold to ruptured diaphrams in the low pressure fuel system to failure in the ECU.<br /><br />You need a manual, first, or take it to a dealer that handles Suzuki , Evinrude or Johnson 4 strokes.<br /><br />Good luck. :)
 

clanton

Rear Admiral
Joined
Jul 9, 2001
Messages
4,876
Re: mix of gasoline and oil in crank case

After what JB said, check the vapor seperator, the seperator is vented into the crankcase at top of valve cover. If the float sticks or needle leaks fuel it is pumped into the crankcase.
 

AlexS

Recruit
Joined
Dec 19, 2003
Messages
5
Re: mix of gasoline and oil in crank case

add on: the motor year 2000 (engine family Y1PXM0079220) ~1.3L<br />Compression in the motor 11-12<br />Fuel pump work normally.
 

Cricket Too

Lieutenant Commander
Joined
May 14, 2003
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1,732
Re: mix of gasoline and oil in crank case

What do you mean by compression 11-12? Is that the compression ratio? What is the compression of each cylinder, psi. not ratio?
 

AlexS

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Dec 19, 2003
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Re: mix of gasoline and oil in crank case

The compression of each cylinder between 11 and 12
 

roscoe

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Oct 30, 2002
Messages
21,859
Re: mix of gasoline and oil in crank case

Does this engine run?<br /> <br />Compression should be over 150psi, which would be approximately 11-12 bar.<br /><br />Follow advice above, or seek a technician.
 

AlexS

Recruit
Joined
Dec 19, 2003
Messages
5
Re: mix of gasoline and oil in crank case

Compression 11 - 12 bar~= 150 - 160 PSI and this engine run normaly...<br />Problem only in mix of oil and gasoline :(
 
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