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Greg, Technician
Category: Car
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Experience:  17 years Shop Owner /Technician. 27 years experience,
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isuzu: oil comming out the breather pipe at the rear..turbo diesel

Resolved Question:

i have oil comming out the breather pipe at the rear of the engine on a isuzu 4.6lt turbo diesel motor has been sitting for a while not used
Submitted: 4 years ago.
Category: Car
Expert:  Greg replied 4 years ago.

Name is XXXXX XXXXX i will assist you the best i can, please Only accept if you are happy with my answer.


Do an engine compression test you will probably find that the compression is low on a few cylinders due to sticking piston rings, due to the long no start period.


When you have sticking rings you get piston compression blow buy ,meaning you get compressed air into the crankcase causing oil to be pushed out the rear breather pipe .


To confirm this remove the oil filler cap with a running engine and see how much air is being forced out ,if a lot of air is coming out this will confirm this problem .


Kind regards Greg

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