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

blow by

Old Oct 3, 2011 | 11:44 AM
  #1  
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Default blow by

how bad is it that my 98 12 valve has blow by all over mt tailgate?
 
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Old Oct 3, 2011 | 01:06 PM
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Blowby on your tailgate?????
 
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Old Oct 3, 2011 | 02:44 PM
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yeah my tip is dumped over the rearend and i though it was from all the smoke but a buddy told me it was oil.
 
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Old Oct 3, 2011 | 03:44 PM
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are you losing oil on the dip stick?
 
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Old Oct 3, 2011 | 07:17 PM
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the oil is blowing out of ur exhaust?
 
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Old Oct 3, 2011 | 08:04 PM
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Only thing I can think of is take off your downpipe and check to see if there is oil in it. Might have blown an oil seal in the turbo.
 
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Old Oct 3, 2011 | 08:14 PM
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I think a few pictures are in order, somehow I don't think you can have blowby on your tailgate

I think it's much more probable that your axle or driveshaft might've blown a seal. OR your brakes might be leakin fluid somehow but I'm pretty sure you'd notice the brakes goin bad.
 
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Old Oct 10, 2011 | 12:07 AM
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I think its more likely you have cooked your diff seal and are spraying gear lube...although unless you have a big hole in your bed im having trouble visualizing how anything is getting on your tailgate regardless of what it is..
 
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Old Oct 10, 2011 | 02:41 PM
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well i used to have a stack so.......Ill take some pics here pretty quick.
 
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