Normal blowby???
#1
Normal blowby???
I covered my blowby tube with my finger and waited about 5 seconds.
When I let go there was some pressure and a small cloud of air/oil.
obviously the engine was running
This seems good to me at 140k?
thanks
karl
When I let go there was some pressure and a small cloud of air/oil.
obviously the engine was running
This seems good to me at 140k?
thanks
karl
#4
Registered User
On my 97 I had overfilled (I think) my oil and had a blowby problem about 2 years ago and took it to Cummins for a manometer blowby test which it passed fine with about 175K miles on the truck. The mechanic said my engine was barely broke in and doubted a problem...and he was right.
Here are the results for those interested:
1 inch at Idle
8 inch at 2900 RPM (parked...not driven)
Max blowby is 16 inches @ W.O.T.
Here are the results for those interested:
1 inch at Idle
8 inch at 2900 RPM (parked...not driven)
Max blowby is 16 inches @ W.O.T.
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KATOOM
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