Tranny rear seal still leaking after replacement - BMW M5 Forum and M6 Forums
E34 M5 Discussion 1988-1995 Sedan and Touring

Reply
 
LinkBack Thread Tools Rate Thread Display Modes
post #1 of 12 Old 12th May 2013, 02:51 AM Thread Starter
4heid
Member, Sport: On DSC: Off
 
Join Date: Apr 2013
Location: Miami
Posts: 207
Thanks: 0
Thanked 0 Times in 0 Posts
Tranny rear seal still leaking after replacement

I just replaced, after dropping the tranny, the front and rear seals and the guibo.
While it was on a lift today for some other front end work we noticed it was still leaking at the rear seal. Has anyone seen this before or had another cause of rear output shaft seal leaks?
4heid is offline  
Sponsored Links
Advertisement
 
post #2 of 12 Old 12th May 2013, 03:05 AM Thread Starter
4heid
Member, Sport: On DSC: Off
 
Join Date: Apr 2013
Location: Miami
Posts: 207
Thanks: 0
Thanked 0 Times in 0 Posts
on bmwe34.net it says" if you still have a leak after changing the output seal, you need to change the flange"

can anyone point me to this part? i have not found it yet on the diagrams.
4heid is offline  
post #3 of 12 Old 12th May 2013, 03:35 AM
SpecRaceM5
Member, P500 Sport, DSC off (>900)
 
SpecRaceM5's Avatar
 
Join Date: Nov 2004
Location: Nürnberg, Germany / SF, CA
Posts: 900
Thanks: 10
Thanked 35 Times in 33 Posts
Is your selector shaft seal leaking? It is above the main output shaft. They are natorious for leaking due to the rotating and in and out movement of the elector shaft. It's kind of a nature of the beast type thing. Even when my M5 was under warranty there were probably 3 or 4 selector shaft seals installed.

As for the output shaft flange part number, look it up on realoem.com. I could do it for you but it's a good thing to learn to use.

Hope this helps.

Cheers,

Brian

1993 M5 3.6 Lagoon Green - Daily Driver
1992 525i 5 speed - Sold
1991 M5 3.6 Alpine White - Sold
1990 325i/4 Schwartz - Sold
1990 325is Alpine White - RIP
SpecRaceM5 is offline  
 
post #4 of 12 Old 12th May 2013, 03:39 AM Thread Starter
4heid
Member, Sport: On DSC: Off
 
Join Date: Apr 2013
Location: Miami
Posts: 207
Thanks: 0
Thanked 0 Times in 0 Posts
We did not consider the selector shaft. I have been running through the diagrams but cannot determine which is the flange holding the transmission output shaft seal.

its easier for the rear diff. Could you assist for the tranny?
4heid is offline  
post #5 of 12 Old 12th May 2013, 04:10 AM
SpecRaceM5
Member, P500 Sport, DSC off (>900)
 
SpecRaceM5's Avatar
 
Join Date: Nov 2004
Location: Nürnberg, Germany / SF, CA
Posts: 900
Thanks: 10
Thanked 35 Times in 33 Posts
No problem. I just wanted to make sure you were aware of the site as some people are not.

Found the output flange. It is number 20 in the picture.

Part number is 23211203061.
Should also get parts 21 and 22. Part numbers are:
23217572241 and 23211490120.

That being said, I would definitely take a closer look at the output shaft seal. If it wasn't changed it should be but keep in mind that some seepage may still be present or may return sooner than expected.

1993 M5 3.6 Lagoon Green - Daily Driver
1992 525i 5 speed - Sold
1991 M5 3.6 Alpine White - Sold
1990 325i/4 Schwartz - Sold
1990 325is Alpine White - RIP

Last edited by SpecRaceM5; 12th May 2013 at 04:12 AM.
SpecRaceM5 is offline  
post #6 of 12 Old 12th May 2013, 04:24 AM Thread Starter
4heid
Member, Sport: On DSC: Off
 
Join Date: Apr 2013
Location: Miami
Posts: 207
Thanks: 0
Thanked 0 Times in 0 Posts
thanks. i was pouring over this diagram but wasnt sure what it was.

we actually just pulled the tranny and replaced both input and output and the ouutput side is still leaking so we were perplexed.

my mechanic believes its the yoke.

do you concur that it could be this flange even with a new seal?

his though is to pull it again and do the yoke/flange and another seal.
4heid is offline  
post #7 of 12 Old 12th May 2013, 04:39 AM
SpecRaceM5
Member, P500 Sport, DSC off (>900)
 
SpecRaceM5's Avatar
 
Join Date: Nov 2004
Location: Nürnberg, Germany / SF, CA
Posts: 900
Thanks: 10
Thanked 35 Times in 33 Posts
Without seeing it I can't speculate but if the selector shaft seal was not done I would definitely replace it. As for the flange, if the output shaft is still leaking the next step I personally would take is to replace the flange along with a new seal.

1993 M5 3.6 Lagoon Green - Daily Driver
1992 525i 5 speed - Sold
1991 M5 3.6 Alpine White - Sold
1990 325i/4 Schwartz - Sold
1990 325is Alpine White - RIP
SpecRaceM5 is offline  
post #8 of 12 Old 12th May 2013, 10:08 AM
Ferrari-Bmw
M5 Guru (>2000 posts)
 
Join Date: Apr 2001
Location: Iceland// Nürburgring//Ascari
Age: 55
Posts: 2,885
Thanks: 208
Thanked 199 Times in 154 Posts
Quote:
Originally Posted by SpecRaceM5 View Post
Is your selector shaft seal leaking? It is above the main output shaft. They are natorious for leaking



Hope this helps.


Brian
i Agree,,,,,, it is very common ....and i think it is one of the partnr that most BMW share,,,, 23121282394

OT,,, a useless info ,,,,,,,,,

Part 23121282394 (Shaft seal) was found on the following vehicles:

114: Details on 114
114 2002 Sedan, USA
114 2002tii Sedan, USA
114 1600 Convertible, Europe
114 1600 Sedan, Europe
114 1600ti Sedan, Europe
114 1602 Sedan, Europe
114 1602 Touring, Europe
114 1802 Sedan, Europe
114 1802 Touring, Europe
114 2000 Touring, Europe
114 2000tii Touring, Europe
114 2002 Sedan, Europe
114 2002 Touring, Europe
114 2002 Convertible, Europe
114 2002ti Sedan, Europe
114 2002tii Touring, Europe
114 2002tii Sedan, Europe
114 2002turbo Sedan, Europe
114 1600GT Coupe, Europe

E12: Details on E12
E12 528i Sedan, USA
E12 530i Sedan, USA
E12 525 Sedan, Europe
E12 528 Sedan, Europe
E12 528i Sedan, Europe
E12 535i Sedan, Europe
E12 518 Sedan, Europe
E12 520 Sedan, Europe
E12 520i Sedan, Europe
E12 518i Sedan, Europe

E21: Details on E21
E21 320i Sedan, USA
E21 316 Sedan, Europe
E21 318 Sedan, Europe
E21 320 Sedan, Europe
E21 320i Sedan, Europe
E21 315 Sedan, Europe
E21 318i Sedan, Europe
E21 323i Sedan, Europe

E23: Details on E23
E23 733i Sedan, USA
E23 735i Sedan, USA
E23 728 Sedan, Europe
E23 728i Sedan, Europe
E23 728iS Sedan, Europe
E23 730 Sedan, Europe
E23 732i Sedan, Europe
E23 733i Sedan, Europe
E23 735i Sedan, Europe

E24: Details on E24
E24 633CSi Coupe, USA
E24 635CSi Coupe, USA
E24 M6 Coupe, USA
E24 630CSi Coupe, USA
E24 628CSi Coupe, Europe
E24 630CS Coupe, Europe
E24 633CSi Coupe, Europe
E24 635CSi Coupe, Europe
E24 M635CSi Coupe, Europe

E28: Details on E28
E28 528e Sedan, USA
E28 535i Sedan, USA
E28 M5 Sedan, USA
E28 533i Sedan, USA
E28 528i Sedan, Europe
E28 535i Sedan, Europe
E28 M535i Sedan, Europe
E28 525i Sedan, Europe
E28 M5 Sedan, Europe
E28 518 Sedan, Europe
E28 518i Sedan, Europe
E28 520i Sedan, Europe
E28 524d Sedan, Europe
E28 524td Sedan, Europe
E28 525e Sedan, Europe

E3: Details on E3
E3 3.0S Sedan, USA
E3 3.0SBav Sedan, USA
E3 3.0Si Sedan, USA
E3 2.8L Sedan, Europe
E3 2500 Sedan, Europe
E3 2800 Sedan, Europe
E3 3.0L Sedan, Europe
E3 3.0S Sedan, Europe
E3 3.0Si Sedan, Europe
E3 3.3L Sedan, Europe
E3 3.3Li Sedan, Europe

E30: Details on E30
E30 M3 Coupe, USA
E30 318i Sedan, USA
E30 318i Coupe, USA
E30 318i Convertible, USA
E30 318is Coupe, USA
E30 325e Sedan, USA
E30 325e Coupe, USA
E30 325i Sedan, USA
E30 325i Coupe, USA
E30 325i Convertible, USA
E30 325ix Sedan, USA
E30 325ix Coupe, USA
E30 M3 Coupe, Europe
E30 325i Touring, Europe
E30 325i Sedan, Europe
E30 325i Convertible, Europe
E30 325i Coupe, Europe
E30 325ix Coupe, Europe
E30 325ix Sedan, Europe
E30 316 Coupe, Europe
E30 316 Sedan, Europe
E30 318i Coupe, Europe
E30 318i Sedan, Europe
E30 324d Sedan, Europe
E30 316i Coupe, Europe
E30 316i Sedan, Europe
E30 320i Sedan, Europe
E30 320i Touring, Europe
E30 320i Coupe, Europe
E30 320i Convertible, Europe
E30 323i Coupe, Europe
E30 323i Sedan, Europe
E30 320is Sedan, Europe
E30 320is Coupe, Europe
E30 M3 Convertible, Europe
E30 316i Touring, Europe
E30 318i Convertible, Europe
E30 318i Touring, Europe
E30 318is Coupe, Europe
E30 324td Sedan, Europe
E30 324td Touring, Europe
E30 325e Coupe, Europe
E30 325e Sedan, Europe
E30 325ix Touring, Europe

E32: Details on E32
E32 735i Sedan, USA
E32 730i Sedan, Europe
E32 730iL Sedan, Europe
E32 735i Sedan, Europe
E32 735iL Sedan, Europe

E34: Details on E34
E34 M5 3.6 Sedan, USA
E34 535i Sedan, USA
E34 525i Sedan, USA
E34 530i Sedan, USA
E34 518i Sedan, Europe
E34 520i Sedan, Europe
E34 M5 Touring, Europe
E34 M5 3.6 Sedan, Europe
E34 M5 3.8 Sedan, Europe
E34 530i Sedan, Europe
E34 535i Sedan, Europe
E34 524td Sedan, Europe
E34 525i Sedan, Europe
E34 525i Touring, Europe
E34 525ix Sedan, Europe
E34 525ix Touring, Europe
E34 525td Sedan, Europe
E34 525td Touring, Europe
E34 525tds Sedan, Europe
E34 525tds Touring, Europe
E34 530i Touring, Europe
E34 518g Touring, Europe
E34 518i Touring, Europe
E34 520i Touring, Europe

E36: Details on E36
E36 328i Coupe, USA
E36 328i Convertible, USA
E36 328i Sedan, USA
E36 M3 Sedan, USA
E36 M3 Coupe, USA
E36 M3 Convertible, USA
E36 318i Convertible, USA
E36 318i Sedan, USA
E36 318is Coupe, USA
E36 318ti Compact, USA
E36 320i Sedan, USA
E36 323i Coupe, USA
E36 323i Convertible, USA
E36 325i Sedan, USA
E36 325i Convertible, USA
E36 325is Coupe, USA
E36 323i Touring, Europe
E36 325i Sedan, Europe
E36 325td Sedan, Europe
E36 325tds Sedan, Europe
E36 325tds Touring, Europe
E36 328i Coupe, Europe
E36 328i Sedan, Europe
E36 328i Convertible, Europe
E36 328i Touring, Europe
E36 M3 Convertible, Europe
E36 M3 Coupe, Europe
E36 M3 Sedan, Europe
E36 316g Compact, Europe
E36 316i Sedan, Europe
E36 316i Coupe, Europe
E36 316i Touring, Europe
E36 316i 1.6 Compact, Europe
E36 316i 1.9 Compact, Europe
E36 318i Convertible, Europe
E36 318i Sedan, Europe
E36 318i Touring, Europe
E36 318is Coupe, Europe
E36 318is Sedan, Europe
E36 318ti Compact, Europe
E36 320i Coupe, Europe
E36 320i Sedan, Europe
E36 320i Touring, Europe
E36 320i Convertible, Europe
E36 323i Coupe, Europe
E36 323i Sedan, Europe
E36 323i Convertible, Europe
E36 323ti Compact, Europe
E36 325i Convertible, Europe
E36 325i Coupe, Europe
E36 318tds Sedan, Europe
E36 318tds Touring, Europe
E36 318tds Compact, Europe

E38: Details on E38
E38 725tds Sedan, Europe
E38 728i Sedan, Europe
E38 730i Sedan, Europe
E38 730iL Sedan, Europe
E38 735i Sedan, Europe

E39: Details on E39
E39 525i Touring, USA
E39 528i Sedan, USA
E39 528i Touring, USA
E39 530i Sedan, USA
E39 525i Sedan, USA
E39 520d Touring, Europe
E39 520d Sedan, Europe
E39 523i Sedan, Europe
E39 523i Touring, Europe
E39 525i Touring, Europe
E39 525td Sedan, Europe
E39 525tds Sedan, Europe
E39 525tds Touring, Europe
E39 528i Touring, Europe
E39 528i Sedan, Europe
E39 530i Touring, Europe
E39 530i Sedan, Europe
E39 535i Sedan, Europe
E39 520i Sedan, Europe
E39 520i Touring, Europe
E39 525i Sedan, Europe
E39 525d Sedan, Europe
E39 525d Touring, Europe
E39 530d Touring, Europe
E39 530d Sedan, Europe

E46: Details on E46
E46 328Ci Coupe, USA
E46 328i Sedan, USA
E46 330Ci Coupe, USA
E46 330Ci Convertible, USA
E46 330i Sedan, USA
E46 320i Sedan, USA
E46 323Ci Convertible, USA
E46 323Ci Coupe, USA
E46 323i Sedan, USA
E46 323i Touring, USA
E46 325Ci Convertible, USA
E46 325Ci Coupe, USA
E46 325i Sedan, USA
E46 325i Touring, USA
E46 325xi Touring, USA
E46 325xi Sedan, USA
E46 330xi Sedan, USA
E46 318d Touring, Europe
E46 318d Sedan, Europe
E46 318td Compact, Europe
E46 320d Sedan, Europe
E46 320d Touring, Europe
E46 328Ci Coupe, Europe
E46 328i Touring, Europe
E46 328i Sedan, Europe
E46 330Ci Convertible, Europe
E46 330Ci Coupe, Europe
E46 330i Touring, Europe
E46 330i Sedan, Europe
E46 316Ci Coupe, Europe
E46 316i Sedan, Europe
E46 316i Touring, Europe
E46 316i 1.6 Sedan, Europe
E46 316i 1.9 Sedan, Europe
E46 316ti Compact, Europe
E46 318Ci Convertible, Europe
E46 318Ci Coupe, Europe
E46 318i Touring, Europe
E46 318i Sedan, Europe
E46 318ti Compact, Europe
E46 320Ci Convertible, Europe
E46 320Ci Coupe, Europe
E46 320i Touring, Europe
E46 320i Sedan, Europe
E46 323Ci Convertible, Europe
E46 323Ci Coupe, Europe
E46 323i Sedan, Europe
E46 325Ci Convertible, Europe
E46 325Ci Coupe, Europe
E46 325i Sedan, Europe
E46 325i Touring, Europe
E46 325ti Compact, Europe
E46 320td Compact, Europe
E46 330d Sedan, Europe
E46 330d Touring, Europe
E46 330xd Sedan, Europe
E46 330xd Touring, Europe
E46 325xi Sedan, Europe
E46 325xi Touring, Europe
E46 330xi Sedan, Europe
E46 330xi Touring, Europe
E46 330Cd Convertible, Europe
E46 330Cd Coupe, Europe

E53: Details on E53
E53 X5 3.0i SUV, USA
E53 X5 3.0i SUV, Europe
E53 X5 3.0d SUV, Europe

E60: Details on E60
E60 545i Sedan, USA
E60 550i Sedan, USA
E60 M5 Sedan, USA
E60 525i Sedan, USA
E60 525d Sedan, Europe
E60 530d Sedan, Europe
E60 540i Sedan, Europe
E60 545i Sedan, Europe
E60 550i Sedan, Europe
E60 530xd Sedan, Europe
E60 523i Sedan, Europe
E60 525i Sedan, Europe

E60N: Details on E60N
E60N 535i Sedan, USA
E60N 550i Sedan, USA
E60N 535xi Sedan, USA
E60N 528i Sedan, USA
E60N 525d Sedan, Europe
E60N 530d Sedan, Europe
E60N 540i Sedan, Europe
E60N 550i Sedan, Europe
E60N 525xd Sedan, Europe
E60N 530xd Sedan, Europe
E60N 520i Sedan, Europe
E60N 523i Sedan, Europe
E60N 525i Sedan, Europe

E61: Details on E61
E61 525d Touring, Europe
E61 530d Touring, Europe
E61 545i Touring, Europe
E61 550i Touring, Europe
E61 530xd Touring, Europe
E61 523i Touring, Europe
E61 525i Touring, Europe

E61N: Details on E61N
E61N 535xi Touring, USA
E61N 525d Touring, Europe
E61N 530d Touring, Europe
E61N 550i Touring, Europe
E61N 525xd Touring, Europe
E61N 530xd Touring, Europe
E61N 520i Touring, Europe
E61N 523i Touring, Europe
E61N 525i Touring, Europe

E63: Details on E63
E63 645Ci Coupe, USA
E63 650i Coupe, USA
E63 M6 Coupe, USA
E63 645Ci Coupe, Europe
E63 650i Coupe, Europe

E63N: Details on E63N
E63N 650i Coupe, USA
E63N 650i Coupe, Europe

E64: Details on E64
E64 645Ci Convertible, USA
E64 650i Convertible, USA
E64 M6 Convertible, USA
E64 645Ci Convertible, Europe
E64 650i Convertible, Europe

E64N: Details on E64N
E64N 650i Convertible, USA
E64N 650i Convertible, Europe

E81: Details on E81
E81 123d 3 doors, Europe
E81 116d 3 doors, Europe
E81 116i 1.6 3 doors, Europe
E81 116i 2.0 3 doors, Europe
E81 118d 3 doors, Europe
E81 118i 3 doors, Europe
E81 120i 3 doors, Europe

E82: Details on E82
E82 135i Coupe, USA
E82 128i Coupe, USA
E82 123d Coupe, Europe
E82 135i Coupe, Europe
E82 118d Coupe, Europe
E82 120i Coupe, Europe
E82 125i Coupe, Europe

E83: Details on E83
E83 X3 3.0d SUV, Europe

E83N: Details on E83N
E83N X3 3.0d SUV, Europe

E84: Details on E84
E84 X1 18d SUV, Europe
E84 X1 18i SUV, Europe

E85: Details on E85
E85 Z4 2.5i Roadster, USA
E85 Z4 3.0i Roadster, USA
E85 Z4 2.2i Roadster, Europe
E85 Z4 2.5i Roadster, Europe
E85 Z4 2.0i Roadster, Europe
E85 Z4 2.5si Roadster, Europe

E87: Details on E87
E87 116i 5 doors, Europe
E87 118i 5 doors, Europe
E87 120i 5 doors, Europe

E87N: Details on E87N
E87N 123d 5 doors, Europe
E87N 116d 5 doors, Europe
E87N 116i 1.6 5 doors, Europe
E87N 116i 2.0 5 doors, Europe
E87N 118d 5 doors, Europe
E87N 118i 5 doors, Europe
E87N 120i 5 doors, Europe

E88: Details on E88
E88 135i Convertible, USA
E88 128i Convertible, USA
E88 123d Convertible, Europe
E88 135i Convertible, Europe
E88 118d Convertible, Europe
E88 118i Convertible, Europe
E88 120i Convertible, Europe
E88 125i Convertible, Europe

E89: Details on E89
E89 Z4 35i Roadster, USA
E89 Z4 30i Roadster, USA
E89 Z4 35i Roadster, Europe
E89 Z4 23i Roadster, Europe
E89 Z4 30i Roadster, Europe

E9: Details on E9
E9 3.0CS Coupe, USA
E9 2.5CS Coupe, Europe
E9 3.0CS Coupe, Europe
E9 3.0CSi Coupe, Europe
E9 3.0CSiL Coupe, Europe
E9 3.0CSL Coupe, Europe

E90: Details on E90
E90 335i Sedan, USA
E90 M3 Sedan, USA
E90 335xi Sedan, USA
E90 323i Sedan, USA
E90 325i Sedan, USA
E90 328i Sedan, USA
E90 325d Sedan, Europe
E90 330d Sedan, Europe
E90 335i Sedan, Europe
E90 M3 Sedan, Europe
E90 330xd Sedan, Europe
E90 335xi Sedan, Europe
E90 316i Sedan, Europe
E90 318d Sedan, Europe
E90 318i Sedan, Europe
E90 320i Sedan, Europe
E90 320si Sedan, Europe
E90 323i Sedan, Europe
E90 325i Sedan, Europe
E90 328i Sedan, Europe

E90N: Details on E90N
E90N 335i Sedan, USA
E90N M3 Sedan, USA
E90N 335xi Sedan, USA
E90N 323i Sedan, USA
E90N 328i Sedan, USA
E90N 325d Sedan, Europe
E90N 330d Sedan, Europe
E90N 335i Sedan, Europe
E90N M3 Sedan, Europe
E90N 330xd Sedan, Europe
E90N 335xi Sedan, Europe
E90N 316d Sedan, Europe
E90N 316i Sedan, Europe
E90N 318d Sedan, Europe
E90N 318i Sedan, Europe
E90N 320i Sedan, Europe
E90N 323i Sedan, Europe
E90N 325i Sedan, Europe
E90N 328i Sedan, Europe

E91: Details on E91
E91 328i Touring, USA
E91 325d Touring, Europe
E91 330d Touring, Europe
E91 335i Touring, Europe
E91 330xd Touring, Europe
E91 335xi Touring, Europe
E91 318d Touring, Europe
E91 318i Touring, Europe
E91 320i Touring, Europe
E91 323i Touring, Europe
E91 325i Touring, Europe

E91N: Details on E91N
E91N 328i Touring, USA
E91N 325d Touring, Europe
E91N 330d Touring, Europe
E91N 335i Touring, Europe
E91N 330xd Touring, Europe
E91N 335xi Touring, Europe
E91N 316d Touring, Europe
E91N 316i Touring, Europe
E91N 318d Touring, Europe
E91N 318i Touring, Europe
E91N 320i Touring, Europe
E91N 323i Touring, Europe
E91N 325i Touring, Europe

E92: Details on E92
E92 335i Coupe, USA
E92 M3 Coupe, USA
E92 335xi Coupe, USA
E92 328i Coupe, USA
E92 325d Coupe, Europe
E92 330d Coupe, Europe
E92 335i Coupe, Europe
E92 M3 Coupe, Europe
E92 330xd Coupe, Europe
E92 335xi Coupe, Europe
E92 316i Coupe, Europe
E92 320i Coupe, Europe
E92 323i Coupe, Europe
E92 325i Coupe, Europe

E92N: Details on E92N
E92N 335is Coupe, USA
E92N M3 Coupe, USA
E92N 328i Coupe, USA
E92N 325d Coupe, Europe
E92N 330d Coupe, Europe
E92N M3 Coupe, Europe
E92N 330xd Coupe, Europe
E92N 316i Coupe, Europe
E92N 318i Coupe, Europe
E92N 320i Coupe, Europe
E92N 323i Coupe, Europe
E92N 325i Coupe, Europe

E93: Details on E93
E93 335i Convertible, USA
E93 M3 Convertible, USA
E93 328i Convertible, USA
E93 325d Convertible, Europe
E93 330d Convertible, Europe
E93 335i Convertible, Europe
E93 M3 Convertible, Europe
E93 320i Convertible, Europe
E93 323i Convertible, Europe
E93 325i Convertible, Europe
E93 328i Convertible, Europe

E93N: Details on E93N
E93N 335is Convertible, USA
E93N M3 Convertible, USA
E93N 328i Convertible, USA
E93N 325d Convertible, Europe
E93N 330d Convertible, Europe
E93N M3 Convertible, Europe
E93N 318i Convertible, Europe
E93N 320i Convertible, Europe
E93N 323i Convertible, Europe
E93N 325i Convertible, Europe
E93N 328i Convertible, Europe

F10: Details on F10
F10 523i Sedan, Europe
F10 528i Sedan, Europe

F11: Details on F11
F11 523i Touring, Europe
F11 528i Touring, Europe

NK: Details on NK
NK 2000 Sedan, USA
NK 1600 Sedan, Europe
NK 1800 Sedan, Europe
NK 2000 Sedan, Europe
NK 2000C Coupe, Europe
NK 2000CS Coupe, Europe
NK 2000ti Sedan, Europe
NK 2000tii Sedan, Europe
NK 2000tilux Sedan, Europe

Z1: Details on Z1
Z1 Z1 Roadster, Europe

Z3: Details on Z3
Z3 Z3 2.8 Coupe, USA
Z3 Z3 2.8 Roadster, USA
Z3 Z3 3.0i Coupe, USA
Z3 Z3 3.0i Roadster, USA
Z3 Z3 M Roadster, USA
Z3 Z3 M Coupe, USA
Z3 Z3 1.9 Roadster, USA
Z3 Z3 2.5 Roadster, USA
Z3 Z3 2.5i Roadster, USA
Z3 Z3 2.8 Coupe, Europe
Z3 Z3 2.8 Roadster, Europe
Z3 Z3 3.0i Roadster, Europe
Z3 Z3 3.0i Coupe, Europe
Z3 Z3 M Coupe, Europe
Z3 Z3 M Roadster, Europe
Z3 Z3 1.8 Roadster, Europe
Z3 Z3 1.9 Roadster, Europe
Z3 Z3 2.0 Roadster, Europe
Z3 Z3 2.2i Roadster, Europe

Sveinbjörn Hrafnsson

E30 CABRIO V12 M70B50 ///
ALPINA B10 BITURBO 346 @ 507
E34 550 V12 JML

http://alpina.123.is/pictures/
Ferrari-Bmw is offline  
post #9 of 12 Old 12th May 2013, 02:43 PM Thread Starter
4heid
Member, Sport: On DSC: Off
 
Join Date: Apr 2013
Location: Miami
Posts: 207
Thanks: 0
Thanked 0 Times in 0 Posts
thanks guys, you have been immensely helpful. i dont feel so concerned at the moment that there is a larger issue at hand. We will R&R the entire region and see what happening.

I am glad we caught this in time!
4heid is offline  
post #10 of 12 Old 16th June 2013, 07:24 AM
m6bigdog
Fellow Member (>400)
 
m6bigdog's Avatar
 
Join Date: May 2013
Location: SF East Bay, California
Posts: 443
Thanks: 1
Thanked 74 Times in 63 Posts
Quote:
Originally Posted by 4heid View Post
I just replaced, after dropping the tranny, the front and rear seals and the guibo.
While it was on a lift today for some other front end work we noticed it was still leaking at the rear seal. Has anyone seen this before or had another cause of rear output shaft seal leaks?
I have numerous times.
The solution: replace the transmission output flange/yoke. Several times it was to replace the diff pinion flange/yoke and the front harmonic balancer hub.
I have seen this enough times I will not replace a leaking front crank or driveline seal with over 75k miles without replacing the seal with the sealing surface if possible. Replacing the rotating surface is not always practical in the case of a rear crank seal and/or possible in the case of a diff yoke (BMW does not sell the pinion flange as a separate part). The next option is to use some emery cloth to break the seal polished surface on the rotating shaft surface to help the new seal work better
It is a common practice to set the seal deeper in the housing bore to prevent the new seal from riding in the grove made by the old seal.

I just replaced the front seal on my ZF 5-speed automatic transmission with 161k miles and I replaces the torque converter at a huge increase in the repair cost for all the reasons to include making sure the new front seal had a new surface to seal against. Given the effort to pull the torque converter to get to the front seal I was not going to re-install the old torque converter with 161k mi and have the new seal leak due to the grove in the converter drive or have the lock-up clutch fail shortly after the repair.

I am less worried about replacing a leaking gasket than a leaking shaft seal just because the rotating surface has as much to do with re-sealing as the seal itself.

Last edited by m6bigdog; 16th June 2013 at 07:27 AM.
m6bigdog is offline  
Reply

Bookmarks

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the BMW M5 Forum and M6 Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes Rate This Thread
Linear Mode Linear Mode
Rate This Thread:



Similar Threads
Thread Thread Starter Forum Replies Last Post
Rear Main Seal replacement failure / leaking saturnuranus E39 M5 and E52 Z8 Discussion 53 9th March 2016 05:34 PM
Rear main seal replacement part(s)? LukeM5 E39 M5 and E52 Z8 Discussion 1 27th February 2011 04:29 AM
Leaking rear main seal = new clutch? R748 E39 M5 and E52 Z8 Discussion 3 20th March 2008 04:36 PM
Rear main seal replacement HDClown E39 M5 and E52 Z8 Discussion 3 26th January 2008 08:50 PM
Rear Main Seal needs replacement anything else while they're in there? matt310 E39 M5 and E52 Z8 Discussion 2 31st October 2006 05:57 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome