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oil dripping from breather
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Supporting Member of Barthmobile.com 6/17
Picture of Richard_Muise
posted
Returned from a 300 mile run and noticed a slow steady drip of black oil coming from my breather hose. What does this mean?


R.P.Muise 1994 Breakaway/Cummins 5.9/Allison transmission/Spartan Chassis
 
Posts: 549 | Location: Springfield, Massachusetts | Member Since: 10-13-2005Reply With QuoteReport This Post
Supporting Member of Barthmobile.com 8/16
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Try just cleaning the breather. Maybe it is so dirty it just is dripping the old build-up when it is warm.
 
Posts: 2566 | Location: Northeast , Ohio | Member Since: 07-29-2012Reply With QuoteReport This Post
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quote:
Originally posted by Richard_Muise:
Returned from a 300 mile run and noticed a slow steady drip of black oil coming from my breather hose. What does this mean?


I don't know Cummins engines very well. I'd guess that unless you have a vacuum leak, the breather hose is not pulling that oil from elsewhere. Can you locate the source of the original leak? Could it be a valve cover gasket?
 
Posts: 22 | Location: New York | Member Since: 03-10-2017Reply With QuoteReport This Post
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Oil mist from the breather tube is normal. It will increase as the engine miles add up.
A simple catch can will prevent oil drips on your driveway but will need to be cleaned from time to time.
Or go with a Walker Air-Sep system.

http://www.walkerairsep.com/product_detail.asp?id=589


1990 34 Regency WB
3208 300HP

1993 34 Regency WB
8.3 Cummins 300HP
 
Posts: 129 | Location: Hendersonville NC | Member Since: 02-02-2016Reply With QuoteReport This Post
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    Forums    Tech Talk    oil dripping from breather

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