24 Valve 2nd Gen Dodge Cummins 98.5-02 Discussion of 24 Valve 5.9 Liter Dodge Cummins Diesels with VP44 Injection Pumps
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Dipstick Blow By

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  #1  
Old 02-05-2008, 09:44 AM
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Unhappy Dipstick Blow By

I just put in my injectors and the truck runs great. But I have noticed that I am getting a lot of blow back at the dipstick. It will push it out and then i get oil all over. What do you think I did wrong or how can I fix it? Thanks Jim
 
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Old 02-05-2008, 09:50 AM
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If it didn't do it before, sound like the injectors didn't seal properly. Or worse.
 
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Old 02-05-2008, 10:01 AM
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How do I check it and what about or worse? JIm
 
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Old 02-05-2008, 07:40 PM
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You might check the crankcase breather ..on the other side of the timing oppisite the injector pump to be sure it isn't getting blocked or the hose pinched.
Excessive blow-by indicates worn piston rings and such.

Check out this post,

https://www.dieselbombers.com/98-5-02-cummins-24v-5-9l-vp-44-tech-talk/4503-oil-breather-vent-bomb.html
 

Last edited by Clunk; 02-05-2008 at 07:52 PM.
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Old 02-05-2008, 07:53 PM
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If the overflow on the front of the timeing case is not blocked up I don't know how you could blow oil out the dipstick. And if your have so much block pressure building that the front vent is not adequate you would be blowing oil all over the back of your truck. So I would say to check the screen in the breather tube coming out the front of the motor.

Pull the hose clamp off the down hose, and then turn the big plastic cap about a 1/4 turn and it will pop right off. Inside of the plastic cap is a screen to check.
 
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cummincrazy (02-06-2008)
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Old 02-06-2008, 07:06 PM
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I put a bungy cord a little one on the dipstick and made sure it stayed on .Drove the truck problem solved. So I thought maybe I did not have the dipstick pushed in tight to start with so I took off bungy cord and made sure I pushed dipstick in tight. Solved my problem I guess in my hurry to see how the thing would run I did not put it in tight after I installed injectors. Newby mistake thanks for your help you gus always give great advice. Jim
 
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Old 02-06-2008, 07:09 PM
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Originally Posted by Clunk
You might check the crankcase breather ..on the other side of the timing oppisite the injector pump to be sure it isn't getting blocked or the hose pinched.
Excessive blow-by indicates worn piston rings and such.

Check out this post,

https://www.dieselbombers.com/showthread.php?t=4503

Exactly. If you dont clean the PCV system and it gets clogged there is nowhere for the pressure to escape so it follows the least path of resistance and comes out of the dipstick tube.
 
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Old 02-23-2008, 04:33 AM
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The problem is next will be your front or rear main seal, then your valve cover, and etc...
 
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Old 02-23-2008, 05:27 AM
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The dip Sticks are junk Most i see have Duct Tape on them
 
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Old 02-23-2008, 08:08 AM
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Originally Posted by chpmnsws6
The problem is next will be your front or rear main seal, then your valve cover, and etc...

exactly

get yer puke bottle off the front of the motor....do the mod baby
 


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