12 Valve 2nd Gen Dodge Cummins 94-98 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps

Oil leak 95 12 valve

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  #1  
Old 09-21-2010, 02:11 PM
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Default Oil leak 95 12 valve

Recently had tappet cover replaced due to major oil leak. The valve cover gasket are leaking oil now. Is this due to the crank case not being able to vent through the old leak location anymore. Am i getting more pressure being built up under the valve covers. I removed the covers and the gasket looks fine. I do not seee any leaks under idle. Any thought?
 
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Old 09-23-2010, 01:15 PM
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I had the same trouble too! I added some valve breathers on mine and it seems to help out! If you wanna see a pic, i can upload a pic or too for you.

Did you check the vent on the tappet cover and see if its clogged?
 
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Old 09-23-2010, 11:13 PM
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Default Oil leak

yes pictures would be great, thanks.
 
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Old 09-25-2010, 10:34 PM
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Here you go!!
[IMG][/IMG]
[IMG][/IMG]
[IMG][/IMG]
 
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Old 09-25-2010, 11:47 PM
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how come cylinder five is alot dirtier?

nevermind i see its an oiled one
 

Last edited by wadef1994; 09-25-2010 at 11:48 PM. Reason: looked closer
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Old 09-26-2010, 12:12 AM
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nice! I only used 1 and solved my problems for the most part. after replacing the tappet cover and valve cover gaskets
 
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Old 09-26-2010, 11:24 AM
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Originally Posted by wadef1994
how come cylinder five is alot dirtier?

nevermind i see its an oiled one
The reason #5 is alot dirtier, its a different filter because the orange steel mess ones were discontinue and i bought the rest that they had. So the next best choice was that one!

Originally Posted by FastCR
nice! I only used 1 and solved my problems for the most part. after replacing the tappet cover and valve cover gaskets
I thought it woiuldve looked cooler, but the hardest part for me was trien to get all the holes aligned the same!
 
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Old 09-27-2010, 12:29 PM
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Thanks for the input and pictures. That worked no leaks.
 
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