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Rudolph Diesel
Rudolph Diesel, ASE ,Master Heavy Truck Technichian
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3 cylinder Detroit diesel that blows engine oil out the exhaust.

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I have a 3 cylinder Detroit diesel that blows engine oil out the exhaust.


Welcome to JA!

Here is a exposed view of a Detroit 3 cyl engine.

you can have a broken compreshon ring'

cracked piston

cracked sleeve

bad valve stem seal

with it running remove the oil fill cap of you feel a lot of blow by here then we know its a compreshon ring.,,sleeve or piston.


of its ok there then its a valve guide seal


Let me know if i can help more!


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