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Oil Blow-by

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Old May 28, 2003 | 09:11 AM
  #1  
tamalerocket's Avatar
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From: San Antonio, Tex.
Oil Blow-by

I took my '96 in for some warranty work(less than 100K) and asked the dealer to check to see of the rear main seal was leaking, because I noticed a puddle of oil would accumulate on the ground,at the location where the trans(auto)bolts to the engine. When I went to pick my rig up, the svc. mgr. said the oil puddle was due to &quot;the blow-by tube dripping&quot;.<br>Can this be? The puddle seem's to be getting bigger.
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Old May 28, 2003 | 09:42 AM
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From: San Angelo Texas
Re:Oil Blow-by

Could be, real diesels do dribble. On the 2001 up DC put a crappy plastic bottle on the end of the blow by tube to keep the garage floor clean.
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Old May 28, 2003 | 07:17 PM
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Re:Oil Blow-by

Is it possible to &quot;tie-in&quot; the blow-by tube to the exhaust<br>behind the muffler, to eliminate this problem? Or would that cause too much vacum on the crankcase?<br>Just seem's to me that someone would have come up with a 'fix' for this problem by now.
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Old May 29, 2003 | 01:06 AM
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Re:Oil Blow-by

Well thank's Gary, for the neat idea. Sound's like a simple fix to an annoying problem. I'll certainly look into trying this, if someone else doesn't top this good idea.
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Old May 30, 2003 | 08:42 PM
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Re:Oil Blow-by

Listen (read) Gary's reply. The bottle is thee way to go. Dump it out at every oil change and you will never see a mark on your driveway. It gets about 1/2 oz. (max) between changes. I used a 4 oz. bottle. I did not need to extend the tube.<br><br>Get a bottle, use a Unibit to drill the cap till it slides on the tube, drill a hole through the tube and place a cotter pin through the tube. The cap is now secure. Drill a few vent holes on the upper part of the bottle, screw it on the cap and enjoy a clean driveway.<br><br><br>Michael
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Old May 31, 2003 | 03:40 AM
  #8  
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Re:Oil Blow-by

Thank's SIXTOGO, for your &quot;simple fix.&quot; You and Gary(KJ6Q) have solved my problem. I'll be busy this Sat. AM making and installing this simple little solution.<br>This is a GREAT site for us folk's to find solutions to problems, and also learn more about our rig's.
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Old Jun 1, 2003 | 08:49 PM
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From: Branchville, Alabama
Re:Oil Blow-by

Check your vacuum pump, if the seals are bad they can add to your blowby and cause oil leakage. This came from Cummins and was a problem with mine. Also check for vacuum leaks which will also add to it. The pump exhaust is to the crankcase, you can figure from there.
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Old Jun 2, 2003 | 11:48 AM
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From: Sweeny, Texas
Re:Oil Blow-by

is there anything else that would indicate a bad vacuum pump?
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Old Jun 2, 2003 | 12:22 PM
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Re:Oil Blow-by

Uhhhh !!<br><br>No Vacuum <br><br>Sorry I couldn't help that one Phillip. <br><br> : Eddie : 8)
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