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Wayne
Wayne, Journeyman
Category: Medium and Heavy Trucks
Satisfied Customers: 9646
Experience:  worked on, Gmc, Macks, Freight liner,Mercedes Benz,,Ford, sterling
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My chn 613 suddenly has blow by and my air dryer is blowing

Customer Question

My chn 613 suddenly has blow by and my air dryer is blowing oil out when it releases pressure
Submitted: 1 year ago.
Category: Medium and Heavy Trucks
Expert:  Wayne replied 1 year ago.

Hi I'm Wayne

I will help you with this

what you are describing is a Compressor that has failed

Drain down the air tanks, remove the big line on compressor

so i can not build pressure , start and run it , see if that is coming out of the compressor

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Customer: replied 1 year ago.
the compressor is causing crankcase pressure too
Expert:  Wayne replied 1 year ago.

Hi

Yes it can,

but if the compressor is clear, running then it is a head gasket

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Customer: replied 1 year ago.
A head gasket on the engine can cause oil to get into the compressor? I don't think I follow what you are saying
Expert:  Wayne replied 1 year ago.

HI

No the compressor if failed will get oil in the engine

the engine head gasket will cause blow by

but you have oil in the air tanks, dryer, that is a faulty compressor

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Please rate my answer 3 or more Stars

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Expert:  Wayne replied 1 year ago.

Hi Just a follow up with you

did my answer help you

let me know, Please

Wayne

Expert:  Wayne replied 1 year ago.

HI

Juat a follow up with you

how is this issue doing

do you need any more help

let me know, Please

Wayne