Pelican Parts
Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   Pelican Parts Forums > Porsche Forums > 911 Engine Rebuilding Forum


Reply
 
LinkBack Thread Tools Rate Thread
Author
Thread Post New Thread    Reply
Registered User
 
Join Date: May 2004
Location: San Diego, CA
Posts: 52
Nose Bearing O ring

Can anyone tell me where the round spring-like “O” ring goes in the number 8 nose bearing? It fell out of the bearing when I took it off the crank shaft. I can’t find any pictures of it in my manuals. I’ve got the outer O ring and pulley seal, but I can’t find a place for the wire/spring O ring.
Old 05-03-2004, 08:42 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #1 (permalink)
Author of "101 Projects"
 
Wayne 962's Avatar
Quote:
Wayne,

Thanks for your quick response to my posting about the o-ring. The attached picture shows the spring-o-ring in the foreground (the image is too big for the forum). Since I can’t find it in your book or my manual, I’m wondering if it belongs?

BTW – great website and you’re Rebuild Book is a great help!


It looks like you're slightly confused. From your picture, I would assume that the black o-ring (I added an arrow) is what you're looking for. Check the pulley seal carefully, your small spring should be inside of the pulley seal, not outside, sitting on your counter.

See the pages in the book, and you will see what I mean...

-Wayne
__________________
Wayne R. Dempsey, Founder, Pelican Parts Inc., and Author of:
101 Projects for Your BMW 3-Series • 101 Projects for Your Porsche 911 • How to Rebuild & Modify Porsche 911 Engines • 101 Projects for Your Porsche Boxster & Cayman • 101 Projects for Your Porsche 996 / 997 • SPEED READ: Porsche 911 (October 2018)

Check out our new site: Dempsey Motorsports
Old 05-03-2004, 09:45 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #3 (permalink)
Registered User
 
john walker's workshop's Avatar
 
Join Date: Mar 2001
Location: Marysville Wa.
Posts: 17,568
i would suggest using a red oring from a SC instead of the black one.
__________________
8009 103rd pl ne Marysville Wa 98270
206 637 4071
Old 05-03-2004, 12:44 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #4 (permalink)
Author of "101 Projects"
 
Wayne 962's Avatar
Quote:
Originally posted by john walker's workshop
i would suggest using a red oring from a SC instead of the black one.
Why?

-Wayne
__________________
Wayne R. Dempsey, Founder, Pelican Parts Inc., and Author of:
101 Projects for Your BMW 3-Series • 101 Projects for Your Porsche 911 • How to Rebuild & Modify Porsche 911 Engines • 101 Projects for Your Porsche Boxster & Cayman • 101 Projects for Your Porsche 996 / 997 • SPEED READ: Porsche 911 (October 2018)

Check out our new site: Dempsey Motorsports
Old 05-03-2004, 09:18 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #5 (permalink)
Registered User
 
thor's Avatar
 
Join Date: Dec 2003
Location: Brussel
Posts: 195
Garage
generally I thinks it 's recommended to use a o ring from turbo which is more resistant in the time ? no?
Old 05-04-2004, 01:35 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #6 (permalink)
Registered User
 
john walker's workshop's Avatar
 
Join Date: Mar 2001
Location: Marysville Wa.
Posts: 17,568
they're a tad thicker and they stay pliable, unlike noeprene (sp) which gets hard over time. i'm assuming the black ring is neoprene.
__________________
8009 103rd pl ne Marysville Wa 98270
206 637 4071
Old 05-04-2004, 06:51 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #7 (permalink)
Author of "101 Projects"
 
Wayne 962's Avatar
[edited - hmmm I must have been thinking of something else] Did they supercede the o-ring to a newer style? I had not heard this...

-Wayne
__________________
Wayne R. Dempsey, Founder, Pelican Parts Inc., and Author of:
101 Projects for Your BMW 3-Series • 101 Projects for Your Porsche 911 • How to Rebuild & Modify Porsche 911 Engines • 101 Projects for Your Porsche Boxster & Cayman • 101 Projects for Your Porsche 996 / 997 • SPEED READ: Porsche 911 (October 2018)

Check out our new site: Dempsey Motorsports
Old 05-04-2004, 11:18 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #8 (permalink)
Registered User
 
Tim Walsh's Avatar
 
Join Date: Sep 2002
Location: Green-Salem, NC
Posts: 3,914
Garage
Send a message via AIM to Tim Walsh
Umm.. the nose bearing isn't the same across all years. The SC bearings DON"T fit Mag cases. They're a couple mil larger in diameter. Just enough not to work.

Don't ask how I know (lost a whole weekend of work to this)

When it comes to the o rings and seals I can't say one way or another.
__________________
Tim
1973 911T
2005 VW GTI
"Dave, hit the brakes, but don't look like your htting the brakes...what? I DON'T KNOW, BRAKE CASUAL!!!" dtw's thoughts after nearly rear ending a SHP officer

Last edited by Tim Walsh; 05-04-2004 at 11:40 AM..
Old 05-04-2004, 11:37 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #9 (permalink)
Registered User
 
john walker's workshop's Avatar
 
Join Date: Mar 2001
Location: Marysville Wa.
Posts: 17,568
the extra thickness gives you a bit of extra crush for sealing this often leaky area. extra insurance. it fits the early nose bearing just fine.
SC and up 999 707 285 40
up to 77 900 174 041 40
__________________
8009 103rd pl ne Marysville Wa 98270
206 637 4071
Old 05-04-2004, 01:42 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #10 (permalink)
Registered User
 
Join Date: May 2003
Posts: 3,241
I tried using a bigger O-ring that I had from a 3.2 gasket kit on my 2.7 rebuild. It was black and I can't be sure it was the one for the nose bearing but it looked right and was only a little thicker than the 2.7 ring. It was a big mistake...the ring sqeezed into the case and kept the case halves from mating tight. If I hadn't caught it and redone it I would've had a massive oil leak similar to the one that has been talked about so much on this forum.

-Andy
__________________
72 Carrera RS replica, Spec 911 racer
Old 05-04-2004, 04:53 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #11 (permalink)
Registered User
 
john walker's workshop's Avatar
 
Join Date: Mar 2001
Location: Marysville Wa.
Posts: 17,568
probably because it was hard black noeprene. the softer red ones don't do that. been using them for years. or it may have been the wrong one.
__________________
8009 103rd pl ne Marysville Wa 98270
206 637 4071

Last edited by john walker's workshop; 05-04-2004 at 06:46 PM..
Old 05-04-2004, 05:43 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #12 (permalink)
Registered User
 
Join Date: May 2004
Location: San Diego, CA
Posts: 52
Thanks for all the responses. I'll most likely stick with the standard black o-ring (it's already purhcased). I'm looking forward to completing this phase of my project this weekend!
Old 05-05-2004, 07:03 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #13 (permalink)
Registered User
 
Alan Cottrill's Avatar
 
Join Date: Apr 2003
Location: Yakima, WA
Posts: 592
Garage
Whats that pin next to the nose bearing in the picture?

I don't remember removing one of those.

is it the alingment pin in the case?

I'm really sweating this!
__________________
big AL
'77 911
Old 05-07-2004, 03:49 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #14 (permalink)
Registered User
 
john walker's workshop's Avatar
 
Join Date: Mar 2001
Location: Marysville Wa.
Posts: 17,568
it taps into the case and properly positions the nose bearing. it seems there's always something that you think back on, and say, oh my god, did i do that?
__________________
8009 103rd pl ne Marysville Wa 98270
206 637 4071
Old 05-07-2004, 04:14 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #15 (permalink)
Registered User
 
Alan Cottrill's Avatar
 
Join Date: Apr 2003
Location: Yakima, WA
Posts: 592
Garage
Thanks John.

I get that feeling about every day...did I remember this...did I do that?

I don't think It's going to go away until it runs.
__________________
big AL
'77 911
Old 05-08-2004, 06:48 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #16 (permalink)
Registered User
 
Join Date: Jun 2002
Location: Commerce Twp, MI
Posts: 109
It takes longer

Believe me, it takes more that to have it just running. I finished my rebuild in November and now have just completed the 500 mile oil change and valve adjust. All looks good and sounds good, but I'm still not 100% comfortable. There was just a touch of filing on the drain plug magnet, I assume (hope) this is normal...

Arnie

'87 Carrera
'01 Beck Spyderr
'96 BMW 328
Old 05-08-2004, 11:43 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #17 (permalink)
Author of "101 Projects"
 
Wayne 962's Avatar
Re: It takes longer

Quote:
Originally posted by tgarnoldo
There was just a touch of filing on the drain plug magnet, I assume (hope) this is normal...
Very normal...

-Wayne
__________________
Wayne R. Dempsey, Founder, Pelican Parts Inc., and Author of:
101 Projects for Your BMW 3-Series • 101 Projects for Your Porsche 911 • How to Rebuild & Modify Porsche 911 Engines • 101 Projects for Your Porsche Boxster & Cayman • 101 Projects for Your Porsche 996 / 997 • SPEED READ: Porsche 911 (October 2018)

Check out our new site: Dempsey Motorsports
Old 05-08-2004, 01:15 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #18 (permalink)
 
Super Moderator
 
cstreit's Avatar
 
Join Date: Feb 2000
Location: Naperville, IL USA
Posts: 13,160
Garage
Wayne's right. Remember if NO metal came off anywhere, the engine isn't wearing and would last forever...
__________________
Chris
----------------------------------------------
2008 Yamaha R6
2001 GT3 Cup - "Pepin"
1999 Spec Miata
1996 993 RS Replica
1971 Norton 750 Commando
Alcon Brake Kits
Old 05-08-2004, 03:17 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #19 (permalink)
Registered User
 
magic930's Avatar
 
Join Date: Apr 2003
Location: Carnation, WA
Posts: 623
Charley not sure if anybody answered your original question. The "spring like metal ring", is part of the front oil seal, its slips over the lip on the inside. Be careful when you slip the bearing back on the crank, press gently... if the lip curls back the metal spring will come off an yo won't know it until oil starts leaking out!
__________________
David
Old 05-09-2004, 08:06 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #20 (permalink)
Reply

Thread Tools
Rate This Thread
Rate This Thread:

 


All times are GMT -8. The time now is 10:42 AM.


 
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page
 

DTO Garage Plus vBulletin Plugins by Drive Thru Online, Inc.