Home  |  Forums  |  914 Info  |  Blogs
 
914World.com - The fastest growing online 914 community!
 
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG. This site is not affiliated with Porsche in any way.
Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners.
 

Welcome Guest ( Log In | Register )

 
Reply to this topicStart new topic
> Type 4 rear main seal: which kind doesn't leak as much?
98101
post Feb 11 2018, 04:59 PM
Post #1


Michael in Seattle
**

Group: Members
Posts: 373
Joined: 7-October 17
From: Seattle, WA
Member No.: 21,495
Region Association: Pacific Northwest



I'm finding contradictory information online about which kind of rear main seal I should use when we go in to fix the oil leaks. VW, Sabo? We'll be swapping the transaxle anyway, and investigating the clutch slipping. Are there any new findings about which kind doesn't leak oil?

I guess this should be called "engine to flywheel" seal instead of "rear" since it would face the front on a VW bus.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
injunmort
post Feb 11 2018, 05:06 PM
Post #2


Senior Member
***

Group: Members
Posts: 1,024
Joined: 12-April 10
From: sugarloaf ny
Member No.: 11,604
Region Association: North East States



i used an ehrling, 2 years no problems
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
IronHillRestorations
post Feb 11 2018, 05:17 PM
Post #3


I. I. R. C.
*****

Group: Members
Posts: 6,708
Joined: 18-March 03
From: West TN
Member No.: 439
Region Association: None



The only one I could find that was the correct size was Sabo, I get them from gowesty.com
User is online!Profile CardPM
Go to the top of the page
+Quote Post
saigon71
post Feb 11 2018, 08:28 PM
Post #4


Senior Member
***

Group: Members
Posts: 1,990
Joined: 1-June 09
From: Dillsburg, PA
Member No.: 10,428
Region Association: MidAtlantic Region



QUOTE(Perry Kiehl @ Feb 11 2018, 06:17 PM) *

The only one I could find that was the correct size was Sabo, I get them from gowesty.com


(IMG:style_emoticons/default/agree.gif)

After blowing a rear main on initial startup of a fresh rebuild, I researched and found that SABO seems to be "the best."


User is offlineProfile CardPM
Go to the top of the page
+Quote Post
MartyYeoman
post Feb 11 2018, 08:56 PM
Post #5


Senior Member
***

Group: Members
Posts: 1,516
Joined: 19-June 03
From: San Ramon, CA
Member No.: 839
Region Association: Northern California



Black or orange? Which is which?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
saigon71
post Feb 12 2018, 06:09 AM
Post #6


Senior Member
***

Group: Members
Posts: 1,990
Joined: 1-June 09
From: Dillsburg, PA
Member No.: 10,428
Region Association: MidAtlantic Region



The SABO I installed was black.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
TheCabinetmaker
post Feb 12 2018, 06:24 AM
Post #7


I drive my car everyday
*****

Group: Members
Posts: 8,299
Joined: 8-May 03
From: Tulsa, Ok.
Member No.: 666



Sabo. Period!
User is online!Profile CardPM
Go to the top of the page
+Quote Post
DRPHIL914
post Feb 12 2018, 06:56 AM
Post #8


Dr. Phil
*****

Group: Members
Posts: 5,753
Joined: 9-December 09
From: Bluffton, SC
Member No.: 11,106
Region Association: South East States



QUOTE(injunmort @ Feb 11 2018, 06:06 PM) *

i used an ehrling, 2 years no problems


I am pretty sure mine is Ehrling, 4+ years now, no leaks- did this when I did full clutch job and transmission rebuild from Dr. Evil clinic-

Dr. Phil
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
IronHillRestorations
post Feb 12 2018, 07:04 AM
Post #9


I. I. R. C.
*****

Group: Members
Posts: 6,708
Joined: 18-March 03
From: West TN
Member No.: 439
Region Association: None



gowesty.com has the one you want. Here's an article they wrote about the RMS

http://www.gowesty.com/tech-article-details.php?id=60
User is online!Profile CardPM
Go to the top of the page
+Quote Post
DRPHIL914
post Feb 12 2018, 09:38 AM
Post #10


Dr. Phil
*****

Group: Members
Posts: 5,753
Joined: 9-December 09
From: Bluffton, SC
Member No.: 11,106
Region Association: South East States



QUOTE(Perry Kiehl @ Feb 12 2018, 08:04 AM) *

gowesty.com has the one you want. Here's an article they wrote about the RMS

http://www.gowesty.com/tech-article-details.php?id=60



interesting read Perry - so it will be interesting to see if my new RMS on the boxster will last or how long, just did the clutch and IMS , it took it in thinking I had an RMS leak but it was not leaking , it was leaking from the IMS seal , but while we did all that work the shop wanted to know if I wanted to do a new RMS since the flywheel was being replaced too- so I said yes thinking new would be better and old original will start to leak - I might be wrong depending on which seal they used! ugh. time will tell! I have no idea which brand they used- hope it was OEM or the Brazil one!
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Montreal914
post Feb 12 2018, 09:53 AM
Post #11


Senior Member
***

Group: Members
Posts: 1,532
Joined: 8-August 10
From: Claremont, CA
Member No.: 12,023
Region Association: Southern California



Just did my clutch a couple weeks ago. After reading about it on GoWesty, I ordered their Sabo.
Definitely a nice part, much larger contact surface to the engine block. Flywheel mating surface needs to be smooth.
Time will tell...
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
98101
post Feb 13 2018, 04:04 AM
Post #12


Michael in Seattle
**

Group: Members
Posts: 373
Joined: 7-October 17
From: Seattle, WA
Member No.: 21,495
Region Association: Pacific Northwest



Ordered. Thanks for the help.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
falcor75
post Jan 3 2020, 04:07 AM
Post #13


Senior Member
***

Group: Members
Posts: 1,578
Joined: 22-November 12
From: Sweden
Member No.: 15,176
Region Association: Scandinavia



Resurrecting this thread for a question.
I got the Sabo brand rear main seal. Should it be set flush with the case as the old seal?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
IronHillRestorations
post Jan 3 2020, 09:00 AM
Post #14


I. I. R. C.
*****

Group: Members
Posts: 6,708
Joined: 18-March 03
From: West TN
Member No.: 439
Region Association: None



Yes, flush with the case
User is online!Profile CardPM
Go to the top of the page
+Quote Post
DRPHIL914
post Jan 23 2023, 08:58 AM
Post #15


Dr. Phil
*****

Group: Members
Posts: 5,753
Joined: 9-December 09
From: Bluffton, SC
Member No.: 11,106
Region Association: South East States



QUOTE(Philip W. @ Feb 12 2018, 10:38 AM) *

QUOTE(Perry Kiehl @ Feb 12 2018, 08:04 AM) *

gowesty.com has the one you want. Here's an article they wrote about the RMS

http://www.gowesty.com/tech-article-details.php?id=60



interesting read Perry - so it will be interesting to see if my new RMS on the boxster will last or how long, just did the clutch and IMS , it took it in thinking I had an RMS leak but it was not leaking , it was leaking from the IMS seal , but while we did all that work the shop wanted to know if I wanted to do a new RMS since the flywheel was being replaced too- so I said yes thinking new would be better and old original will start to leak - I might be wrong depending on which seal they used! ugh. time will tell! I have no idea which brand they used- hope it was OEM or the Brazil one!



(IMG:style_emoticons/default/icon_bump.gif)

@IronHillRestorations

bump on this thread , it came up as i was re-reading this due to new leak. forgot posting on this 5 years ago, that was my original motor and it stayed leak free for 4 years until i dropped a valve seat, at which point we pulled the motor(still leak free) and the heads to have them rebuilt, fast forward a year and a half later that motor is still sitting, we built a new 2.1 and on that motor i had a leak after 6 months, so i pulled the trans to find a leak from trans output shaft seal and the IMS, and the clutch was a mess so in went a new RMS i got from LN, and new trans seal. Recent leak seems to be oil not trans so looks like i am pulling this motor with only 2500 miles on it to investigate, but it seems likely this is a leaking RMS again, after only 9 months and maybe 1500 miles since last spring. (IMG:style_emoticons/default/hissyfit.gif)

I am going to pull it this weekend, but any advice? what am i looking at or for? why
the heck would my RMS be leaking again? Ive also read that some people will shorten the spring to get a tighter seal, anyone else see this? That Ehrling seal on the other motor held fine, no issue. This is a new build with all new inner bearnings new cam new crank, new every thing 18 months ago. Maybe i need to double check the crank end play. seems unlikely that i would have excess crank motion but have heard that will cause a leaking rms. btw the front seal appears dry.

Thanks if anyone can commend id appreciate it.

Phil

User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Montreal914
post Jan 23 2023, 01:24 PM
Post #16


Senior Member
***

Group: Members
Posts: 1,532
Joined: 8-August 10
From: Claremont, CA
Member No.: 12,023
Region Association: Southern California



Is the seal you got from LN the Sabo as discussed above? (IMG:style_emoticons/default/confused24.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
DRPHIL914
post Jan 23 2023, 01:51 PM
Post #17


Dr. Phil
*****

Group: Members
Posts: 5,753
Joined: 9-December 09
From: Bluffton, SC
Member No.: 11,106
Region Association: South East States



QUOTE(Montreal914 @ Jan 23 2023, 02:24 PM) *

Is the seal you got from LN the Sabo as discussed above? (IMG:style_emoticons/default/confused24.gif)



No, LN carries VR. Pretty sure i put in the 12mm seal in this motor when i did it just 9 months ago. I will verify all when i pull it this weekend, but it might just be the galley plug or it could be leaking from the seal/case interface, will see what it looks like when i pull the flywheel.

Still searching for a Sabo if i can find one . I just ordered an Ehrling from Pelican just in case.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post

Reply to this topicStart new topic
2 User(s) are reading this topic (2 Guests and 0 Anonymous Users)
0 Members:

 



- Lo-Fi Version Time is now: 29th March 2024 - 06:28 AM