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

blowby tube

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Old 06-16-2010, 05:59 PM
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one the injection pump side of the engine on the side cover towards the rear of the engine, there is a little tube pointing at about 4:30 towards the firewall. does something connect to this tube or where does it go. i believe i have oil coming out of it im pretty sure thats where my leak is coming from. anyone know what that could mean? thanks
 
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Old 06-16-2010, 09:27 PM
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Its your crankcase breather its supposed to have a little tube on it that goes down below the engine they all slobber a little oil out of them (but not enough to see a drip on the ground) if you have alot oil coming out of it that means your getting excessive crankcase pressure most likely caused by worn out piston rings
 
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Old 06-16-2010, 11:48 PM
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thats not where its comin from i found it after a long drive today. 2 of my brand new valve cover gaskets are leaking in the rear. gotta love felpro!
 
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