1st Generation Dodge Cummins 89-93 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with Rotary Injection Pumps

Ok. Tomorrow the motor is going to be on the ground.

Old Jan 11, 2010 | 09:21 PM
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Default Ok. Tomorrow the motor is going to be on the ground.

I had been planning on pulling the motor in my down time to do a full inspection of the motor and transmission.

Well I'm about to get it on the floor tomorrow, but while pulling off the intercooler boots I come across some krappy news. On the inlet side of the intercooler there is a fine soot from the great and wonderful nevada desert introduced the system by the wonerful supposed high performance K&N filter the dick put on. Anyways, on the outlet side and on the intake horn there is a coating of oil. I checked the turbo and it has a little up and down movement to it too.

So upon all this inspection I am starting to think that the oil in the intake is not a very good sign to the overall condition of the motor. What do you guys think about the oil in the intake? Think my rings ar shot because of the soot from the intake?
 
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Old Jan 11, 2010 | 09:27 PM
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oil in your intake is moft often caused by a blown turbo, especially if you say there is shaft play
 
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Old Jan 11, 2010 | 09:30 PM
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Originally Posted by tltruckparts
oil in your intake is moft often caused by a blown turbo, especially if you say there is shaft play

exactly...............prolly lost a turbo some where along the line in years gone past
 
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Old Jan 11, 2010 | 09:47 PM
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When I brush away the soot on the inlet side of the intercooler there is no sign of oil though.
 
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Old Jan 11, 2010 | 10:03 PM
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side to side movement (axiel) doesnt mean much on a babbet bearing , the oil will take up that when under pressure
 
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Old Jan 11, 2010 | 10:07 PM
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In and out movement would be the bad then?
 
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Old Jan 11, 2010 | 10:23 PM
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in and out or side to side, either of them are bad, a turbo compressor wheel should be tight in all aspects
 
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Old Jan 11, 2010 | 10:29 PM
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yes radial play shows excessive wear
 
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Old Jan 11, 2010 | 10:37 PM
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Time to find an hx35 then.

---AutoMerged DoublePost---

So do you guys think that soot could have done some damage inside the motor that would cause the oil in the intake?
 

Last edited by pewder; Jan 11, 2010 at 10:37 PM. Reason: Automerged Doublepost
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Old Jan 11, 2010 | 10:40 PM
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the soot had to come backwards on maybe a backfire??

the oil came from a shelled out turbo
 
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