5.9L 12V Performance Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps Related to Performance and Longevity

to much blowby

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Old Feb 22, 2009 | 02:31 PM
  #1  
HAYMAFIA's Avatar
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Diesel Wrench
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From: Tulia, TX
Default to much blowby

does anybody sell a kit that separates the oil coming out of my blowby tube and put it back in the engine i know the logical thing to do is rebuild but it still runs great and still pulls 40,000 70 miles an hour so i hate to retire it
 
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Old Feb 22, 2009 | 03:34 PM
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Its normal for an engine to blow oil out the blowby, if you hate the dripping there are kits out there to collect the oil drippings. Its basically a box with a breather filter on the top, and the blowby runs into it. It'd be easy enough to make if you had a welder and a bit of scrap steel layin around.
 
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Old Feb 22, 2009 | 03:45 PM
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its pretty excessive i drove 160 miles and used two gallons of 50 weight oil
 
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Old Feb 22, 2009 | 04:07 PM
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Originally Posted by HAYMAFIA
its pretty excessive i drove 160 miles and used two gallons of 50 weight oil
that sounds like you may have other probelms
 
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Old Feb 22, 2009 | 04:14 PM
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Diesel Wrench
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is there a screen or filter connected to the blowby tube
 
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Old Feb 22, 2009 | 05:30 PM
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Not that I know of. If you're using that much oil you have something burned up or a bad ring, or the easiest one to check, a bad Vacuum pump. If the vacuum pump is bad it'll pressurize the block. Do you have a vacuum leak somewhere? Does the heat only blow on defrost?

If its vacuum I'd be surprised, thats an awful lot of oil to go through. You could always compression test the motor and see if its indeed a bad cylinder or ring, but the keystone rings in these things shouldn't go bad.
 
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Old Feb 22, 2009 | 05:37 PM
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the blowby is consistent no puffing like a hole n piston but im just hoping for the best
 
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