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

Rear main leakage

Old May 9, 2010 | 08:27 AM
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Default Rear main leakage

My rear main on Goldie startin to drip. I tight'n the pan, but it was tight. What's involved in replacing the rear main?? Pain in the **** or what, I guess it's about due, I guess...
 
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Old May 9, 2010 | 10:28 AM
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its kind of a pain but its not the worst thing youve ever done. i just did mine yesterday. you gotta pull the transmission, and flexplate (or flywheel). and its behind there. the rear main kit from cummins is about 80 bucks or so. i just used the 60 dollar one from napa because i dont have a cummins store around me.
 
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Old May 9, 2010 | 07:06 PM
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if you know how to pull the transmission then it aint bad at all. i wish i had the money to do the clutch while i was there tho. check the oil pan gasket while your theere too.
 
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Old May 9, 2010 | 08:23 PM
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Not too bad not too bad and a trani service too, I need it.
 
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Old May 9, 2010 | 09:03 PM
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Originally Posted by tltruckparts
its kind of a pain but its not the worst thing youve ever done. i just did mine yesterday. you gotta pull the transmission, and flexplate (or flywheel). and its behind there. the rear main kit from cummins is about 80 bucks or so. i just used the 60 dollar one from napa because i dont have a cummins store around me.
wonder what it costs to get one across the border... haha, everybody wants $150+ here, (i just let her drip...)
 
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Old May 9, 2010 | 09:07 PM
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Originally Posted by tltruckparts
its kind of a pain but its not the worst thing youve ever done. i just did mine yesterday. you gotta pull the transmission, and flexplate (or flywheel). and its behind there. the rear main kit from cummins is about 80 bucks or so. i just used the 60 dollar one from napa because i dont have a cummins store around me.
they suck.....

and you may discover that the little trapezoid shaped bracket (#11) may be cracked and that could be your leak as well.....

it can be done in an after noon if you know how i did mine in 3 1/2 hours and that's with beer brakes.....



---AutoMerged DoublePost---

Originally Posted by DirtyDozen
wonder what it costs to get one across the border... haha, everybody wants $150+ here, (i just let her drip...)
whats your zip code?
 

Last edited by big bad diesel 416; May 9, 2010 at 09:07 PM. Reason: Automerged Doublepost
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Old May 9, 2010 | 09:42 PM
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Originally Posted by big bad diesel 416
they suck.....

and you may discover that the little trapezoid shaped bracket (#11) may be cracked and that could be your leak as well.....

it can be done in an after noon if you know how i did mine in 3 1/2 hours and that's with beer brakes.....
i never have had any problems with rear mains from napa. not to mention if i do have a problem they always give me new gaskets for free.

a new oil pan gasket is recommended too. you can get away with not doing it but i did while i was in there
 
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Old May 9, 2010 | 11:58 PM
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i would believe on a 4 wheel drive you could do the oil pan without having to lift the motor couldnt you? just get the bolts under the mount and slide it out?
 
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Old May 10, 2010 | 06:32 AM
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[QUOTE=big bad diesel 416;553724]they suck.....

and you may discover that the little trapezoid shaped bracket (#11) may be cracked and that could be your leak as well.....

it can be done in an after noon if you know how i did mine in 3 1/2 hours and that's with beer brakes.....

What's the trapiziod shaped bracket (#11)? I couldn't see anything, oh course I don't know what I'm looking fer, but Is it on the drivers, or passengers side? I bet thats what it is...
 
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Old May 10, 2010 | 11:28 AM
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Originally Posted by TTipsword
i would believe on a 4 wheel drive you could do the oil pan without having to lift the motor couldnt you? just get the bolts under the mount and slide it out?
on my chevy my oil has nothing within a foot of it. but i dont know about on a dodge or not. i think theyre crossmembers are a little more in the way of the chevy's
 
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