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Leaking Rear Main #2451396
02/13/18 09:39 PM
02/13/18 09:39 PM
Joined: Feb 2003
Posts: 14,619
Mesa, Arizona
dart4forte Offline OP
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dart4forte  Offline OP
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Joined: Feb 2003
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Mesa, Arizona
Rear main seal is leaking on my 07 5.9. Who else has had this problem. Costly repair?

Re: Leaking Rear Main [Re: dart4forte] #2451410
02/13/18 10:15 PM
02/13/18 10:15 PM
Joined: Nov 2005
Posts: 14,771
85086
moparpollack Offline
Lil Herman
moparpollack  Offline
Lil Herman

Joined: Nov 2005
Posts: 14,771
85086
Originally Posted By dart4forte
Rear main seal is leaking on my 07 5.9. Who else has had this problem. Costly repair?


$1,000,000 wave Hope you are feeling better!


55 Pick up 56 Plaza 63 D100 step side 67 Coronet, 68 Roadrunner, 69 Super Bee, 69 Coronet 500 convertible, 70 Roadrunner Post, 79 D150 360, and a severe case of Mopar a,d,d
Re: Leaking Rear Main [Re: moparpollack] #2451659
02/14/18 02:07 PM
02/14/18 02:07 PM
Joined: Feb 2003
Posts: 14,619
Mesa, Arizona
dart4forte Offline OP
I Live Here
dart4forte  Offline OP
I Live Here

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Posts: 14,619
Mesa, Arizona
Originally Posted By moparpollack
Originally Posted By dart4forte
Rear main seal is leaking on my 07 5.9. Who else has had this problem. Costly repair?


$1,000,000 wave Hope you are feeling better!


At least its not 2 mil.

Re: Leaking Rear Main [Re: dart4forte] #2451676
02/14/18 02:56 PM
02/14/18 02:56 PM
Joined: Jan 2011
Posts: 2,288
Central Florida
larrymopar360 Offline
top fuel
larrymopar360  Offline
top fuel

Joined: Jan 2011
Posts: 2,288
Central Florida
Originally Posted By dart4forte
Rear main seal is leaking on my 07 5.9. Who else has had this problem. Costly repair?
What vehicle is it in? Going to depend on how much has to be removed to get to it. Parts are cheap, all labor. I have had lot's of LA 360's and a couple of Magnum 5.9 and a heck of a time keeping the rear main's from at least not seeping.


Facts are stubborn things.
Re: Leaking Rear Main [Re: larrymopar360] #2451741
02/14/18 05:53 PM
02/14/18 05:53 PM
Joined: Apr 2004
Posts: 651
Maine
J
jerseybud Offline
mopar
jerseybud  Offline
mopar
J

Joined: Apr 2004
Posts: 651
Maine
Its gotta be a Cummins if its a 07.

There was a former Chrysler engineer selling a modified seal on ebay for several years but havn't seen it posted recently.

Re: Leaking Rear Main [Re: jerseybud] #2451744
02/14/18 06:05 PM
02/14/18 06:05 PM
Joined: Jan 2011
Posts: 2,288
Central Florida
larrymopar360 Offline
top fuel
larrymopar360  Offline
top fuel

Joined: Jan 2011
Posts: 2,288
Central Florida
Originally Posted By jerseybud
Its gotta be a Cummins if its a 07.

There was a former Chrysler engineer selling a modified seal on ebay for several years but havn't seen it posted recently.
Oh that's right!


Facts are stubborn things.
Re: Leaking Rear Main [Re: dart4forte] #2452831
02/16/18 11:11 PM
02/16/18 11:11 PM
Joined: Apr 2007
Posts: 2,240
Calgary, Alberta Canada
a12rag Offline
top fuel
a12rag  Offline
top fuel

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Posts: 2,240
Calgary, Alberta Canada
Are you sure it is rear main ?? Couple of oil changes ago on my 02Cummins, I thought it was rear main, but never knew there is a rear breather, similar to the front one . . . drained the bottle and all was good !

Re: Leaking Rear Main [Re: a12rag] #2453464
02/18/18 02:17 PM
02/18/18 02:17 PM
Joined: Feb 2003
Posts: 14,619
Mesa, Arizona
dart4forte Offline OP
I Live Here
dart4forte  Offline OP
I Live Here

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Mesa, Arizona
2007 5.9, oil accumulates then leaks past the small inspection cover on the bell housing. Definitely oil, not tranny fluid. Not a major leak however its something that needs to addressed.

Re: Leaking Rear Main [Re: dart4forte] #2453618
02/18/18 08:48 PM
02/18/18 08:48 PM
Joined: Apr 2004
Posts: 651
Maine
J
jerseybud Offline
mopar
jerseybud  Offline
mopar
J

Joined: Apr 2004
Posts: 651
Maine
Mine does that and its the tappet cover. I dread taking all that crap apart to fix that stupid little gasket

Re: Leaking Rear Main [Re: jerseybud] #2457716
02/26/18 02:33 AM
02/26/18 02:33 AM
Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
70Cuda383 Offline
Too Many Posts
70Cuda383  Offline
Too Many Posts

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Posts: 21,345
Marysville, O-H-I-O
The valve cover is easy. 10mm bolts, 6 of them if I recall.


**Photobucket sucks**
Re: Leaking Rear Main [Re: 70Cuda383] #2461585
03/05/18 05:53 PM
03/05/18 05:53 PM
Joined: Feb 2003
Posts: 14,619
Mesa, Arizona
dart4forte Offline OP
I Live Here
dart4forte  Offline OP
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Mesa, Arizona
Well, its been awhile and I think I slowed the leak to bide some time. I added a small bottle cap of dot 3. Not a lot but after about 500 mile seems to have stopped the leak. Got a price of $900 to change it out so eventually it will have to be done.

Re: Leaking Rear Main [Re: dart4forte] #2461843
03/06/18 02:01 AM
03/06/18 02:01 AM
Joined: Dec 2009
Posts: 10,391
in a cattle trailer down by th...
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Guitar Jones Offline
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in a cattle trailer down by th...
Originally Posted By dart4forte
Well, its been awhile and I think I slowed the leak to bide some time. I added a small bottle cap of dot 3. Not a lot but after about 500 mile seems to have stopped the leak. Got a price of $900 to change it out so eventually it will have to be done.


Probably not a good idea. Now that the brake fluid has swollen the leaking rear main it has also swollen the seals that weren't leaking. Expect to have to replace all the rubber seals now including the valve stem seals. Not smart.

The Cummins uses a one piece rear main seal so the transmission has to come out.


I never learned to count my blessings, I choose instead to live inside my disasters.

The Scamp is sold, now just two old trucks and one new one.
'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion.
'74 W200 Crew Cab 360, NP435, D44, D60 and NP205 divorced transfer case. Magnum 5.2 MPI and NV4500 coming soon.
2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi!

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