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Old 12-27-2006, 11:23 PM
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Join Date: Jan 2005
Posts: 7
M120 crankcase ventilation

Rear main seal is leaking on my 2000 SL600. Dealer thinks that the engine may not be breathing/venting. My local dealer is 100 miles away and the car is not drivable.

The car will not leak a drop idling, but when you race up the engine, oil starts dripping from the rear center of engine.

Does anybody know what I need to check to make sure the crankcase has proper ventilation?

Thanks,

Al

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  #2  
Old 12-27-2006, 11:41 PM
t walgamuth's Avatar
dieselarchitect
 
Join Date: Apr 2005
Location: Lafayette Indiana
Posts: 36,308
i am not familiar with your particular engine, but most engines, if you open the oil filler cap you will get an idea of blow by. to push oil out a seal would take a massive amount of it.

in fact i cannot imagine a scenario in which crankcase pressure could do so.

i could be wrong i suppose.

tom w
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Old 12-30-2006, 10:58 PM
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Join Date: Apr 2003
Location: Chicago, IL
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Al, send me your e-mail address. I have some info that may help.

Pete

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