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Md7a oil leak

henrid

New member
i have oil coming from my air

i have oil coming from my air filter when i stop the engine any ideas it is a md7a about 1979 and is it serious
 
"The crankcase vents into air

"The crankcase vents into air filter. Excessive pressure from engine wear can cause oil build up. Clean filter and use again. If oil leaks again, you need to have engine checked for excessive crankcase pressure."
 
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