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Old 07-01-2021, 05:02 PM   #1
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Chasing a oil leak

2003 Newmar DP with 75,000 miles on spartan frame

Showing oil on top and small drip running onto ground.
Where do I start to have this looked after.
Cummins dealer or local freightliner shophttps://www.irv2.com/forums/attachment.php?attachmentid=334348&stc=1&d=1625176 863https://www.irv2.com/forums/attachment.php?attachmentid=334349&stc=1&d=1625176 863
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Old 07-01-2021, 07:09 PM   #2
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Try tightening the rocker arm cover bolts.
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Old 07-01-2021, 07:29 PM   #3
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Quote:
Originally Posted by Bpetway View Post
2003 Newmar DP with 75,000 miles on spartan frame

Showing oil on top and small drip running onto ground.
Where do I start to have this looked after.
Cummins dealer or local freightliner shophttps://www.irv2.com/forums/attachment.php?attachmentid=334348&stc=1&d=1625176 863https://www.irv2.com/forums/attachment.php?attachmentid=334349&stc=1&d=1625176 863
I would degrease the whole engine, and take it for a short ride and see if you notice oil. If not take it for another short ride. Do that until you can see where itís coming from. Youíre never gonna find the leak in that mess.
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Old 07-01-2021, 08:05 PM   #4
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Later Cummins engines have a crankcase breather filter on the valve cover, I don't know if your engine does. When that filter stops up it pressurizes the engine internally, which might be enough to force the oil-laden breather "fumes" to find another outlet.
If your crankcase breather tube is dry on the inside/ bottom, it's likely stopped-up.
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Old 07-02-2021, 02:57 PM   #5
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It's easier to find oil leak if at 1st one cleans the engine.
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