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-   -   boost leak? oil bubbling (https://mitsubishiforum.com/forum/2nd-generation-63/boost-leak-oil-bubbling-27724/)

goat1606 05-28-2008 12:13 AM

boost leak? oil bubbling
 
i recently did a boost leak test on my clipse i dont have any leaks through out my ic piping but it does leak somewhere in the engine when i pump air into it i can hear what sounds like a bubbling sound in the oil what could cause this and is there an easy fix?

TheEngineer 05-29-2008 03:01 PM

RE: boost leak? oil bubbling
 
what is your car doing to make you thinkthere is a problem. Try doing a compression test.

silvercoupe97 05-29-2008 03:50 PM

RE: boost leak? oil bubbling
 
Do you have the breather valve and PCV valve capped? If not, you're leaking air into the valve cover. Bubbling noise....when are you doing the boost leak test? After you've run the car or while it's cold? You shouldn't have any noise when it's cold - except maybe air. When it's hot, it could be a sign of oil in the chamber(s), oil, in the breather or PCV valve, residual fuel leaking past the injectors, blah, blah.
When was the last time you checked for oil in the I/C lines? Are you losing oil mysteriously? Tell us more.

goat1606 06-02-2008 11:34 PM

RE: boost leak? oil bubbling
 
compression was around 160 - 165 through out boost leak test was done with the engine cold
ic lines are dry and valve cover builds slight pressure with breather and pcv capped


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