guzziriders.org - moto guzzi forum Homepage
Forum Home Forum Home > Technical > CARC models
  New Posts New Posts RSS Feed - fork seal - Norge
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

fork seal - Norge

 Post Reply Post Reply
Author
Message
Jim Mac View Drop Down
Moderator Group
Moderator Group
Avatar

Joined: 14 May 2014
Location: Edinburgh
Status: Offline
Points: 3202
Post Options Post Options   Thanks (0) Thanks(0)   Quote Jim Mac Quote  Post ReplyReply Direct Link To This Post Topic: fork seal - Norge
    Posted: 04 Jul 2021 at 15:29
ok, been at this for hours, getting fork off etc was no prob,  getting old seal out was a nightmare.  i had to cut it out a tiny bit at a time, almost as if it was welded onto the fork tube.

now out and all clean but the new seal appears to be too big by 2mm.  tube is 56 dia at top, broadening out lower down and seal is 58.  there is no flex in the seal so how do i get it over the lip of the tube?  tried lubing everything but dont want to take a hammer to it as i dont see that helping
V85 TT Trzvel    BMW R45
Too old to die young
Back to Top
Gizzmo View Drop Down
Senior Member
Senior Member
Avatar

Joined: 17 Jan 2021
Location: East Yorkshire
Status: Offline
Points: 147
Post Options Post Options   Thanks (0) Thanks(0)   Quote Gizzmo Quote  Post ReplyReply Direct Link To This Post Posted: 04 Jul 2021 at 16:02
Leave seals in freezer overnight ?
Back to Top
Jim Mac View Drop Down
Moderator Group
Moderator Group
Avatar

Joined: 14 May 2014
Location: Edinburgh
Status: Offline
Points: 3202
Post Options Post Options   Thanks (0) Thanks(0)   Quote Jim Mac Quote  Post ReplyReply Direct Link To This Post Posted: 04 Jul 2021 at 16:20
might try that and dip tube in boiling water before trying, 
V85 TT Trzvel    BMW R45
Too old to die young
Back to Top
Brian UK View Drop Down
Moderator Group
Moderator Group
Avatar

Joined: 13 May 2014
Location: Surrey
Status: Offline
Points: 17641
Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian UK Quote  Post ReplyReply Direct Link To This Post Posted: 04 Jul 2021 at 16:33
You'll never make up 2mm with heat and cold.

If those are the correct measurements, it seems you have the wrong seal.

But what do you mean by 56mm ID(?) at the top, broadening out. Does the bore get bigger further down?
Brian.

Better 5 minutes late in this world than years early in the next.
Back to Top
Jim Mac View Drop Down
Moderator Group
Moderator Group
Avatar

Joined: 14 May 2014
Location: Edinburgh
Status: Offline
Points: 3202
Post Options Post Options   Thanks (0) Thanks(0)   Quote Jim Mac Quote  Post ReplyReply Direct Link To This Post Posted: 04 Jul 2021 at 17:44
Its 56mm at top and there is a recess belie the top lip that the seal fits, I think. It certainly is wider below the lip.

I did think 2mm was a eide gap to close.  I will send the seals back to Gbits and get them to   check them
V85 TT Trzvel    BMW R45
Too old to die young
Back to Top
tommyr View Drop Down
Guzzino
Guzzino
Avatar

Joined: 04 Jul 2021
Location: California, USA
Status: Offline
Points: 2
Post Options Post Options   Thanks (0) Thanks(0)   Quote tommyr Quote  Post ReplyReply Direct Link To This Post Posted: 04 Jul 2021 at 18:25
I just replaced both mine on my Guzzi Stelvio. Highly recommend to watch this video on You Tube - Delboys Garage:  Delboy's Garage, USD Fork Seal Replacement - YouTube

Also , it's critically important to purchase the right sized seal installation tool. The reason is that it acts like a slide hammer to re-install the new seal into the fork tube and without this, it's very, very easy to critically damage the new seal as it goes in, thus you`ll quickly be leaking again. 

Good luck with your seal replacement, if you hot any snags, email me and i`ll try to help.

Tom
T C Reedy
Back to Top
Jim Mac View Drop Down
Moderator Group
Moderator Group
Avatar

Joined: 14 May 2014
Location: Edinburgh
Status: Offline
Points: 3202
Post Options Post Options   Thanks (0) Thanks(0)   Quote Jim Mac Quote  Post ReplyReply Direct Link To This Post Posted: 04 Jul 2021 at 19:28
Under a bright light I spotted a collar on the tip of the leg narrowing the gap on top.   Levered it off and seal fits so what is the collar about ?   It diesnt show on any of the parts diagrams and isn't part of the dust cover ?
V85 TT Trzvel    BMW R45
Too old to die young
Back to Top
andrewhush View Drop Down
Senior Member
Senior Member
Avatar

Joined: 22 Jul 2019
Location: Stanley
Status: Offline
Points: 113
Post Options Post Options   Thanks (0) Thanks(0)   Quote andrewhush Quote  Post ReplyReply Direct Link To This Post Posted: 04 Jul 2021 at 19:45
Are you sure you have got all of the old seal out?
Back to Top
Jim Mac View Drop Down
Moderator Group
Moderator Group
Avatar

Joined: 14 May 2014
Location: Edinburgh
Status: Offline
Points: 3202
Post Options Post Options   Thanks (0) Thanks(0)   Quote Jim Mac Quote  Post ReplyReply Direct Link To This Post Posted: 04 Jul 2021 at 20:21
All out now
V85 TT Trzvel    BMW R45
Too old to die young
Back to Top
Brian UK View Drop Down
Moderator Group
Moderator Group
Avatar

Joined: 13 May 2014
Location: Surrey
Status: Offline
Points: 17641
Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian UK Quote  Post ReplyReply Direct Link To This Post Posted: 04 Jul 2021 at 20:43
Originally posted by Jim Mac Jim Mac wrote:

Under a bright light I spotted a collar on the tip of the leg narrowing the gap on top.   Levered it off and seal fits so what is the collar about ?   It diesnt show on any of the parts diagrams and isn't part of the dust cover ?

News to me but does explain the difficulty in fitting the seal, and of course, removing the old one.

Certainly not shown in any of the parts diagrams.


Edited by Brian UK - 04 Jul 2021 at 20:52
Brian.

Better 5 minutes late in this world than years early in the next.
Back to Top
Jim Mac View Drop Down
Moderator Group
Moderator Group
Avatar

Joined: 14 May 2014
Location: Edinburgh
Status: Offline
Points: 3202
Post Options Post Options   Thanks (0) Thanks(0)   Quote Jim Mac Quote  Post ReplyReply Direct Link To This Post Posted: 05 Jul 2021 at 12:50
 think it must have been part of the skeleton of the dust cover which had to be forced off the leg as well.

everything clean and seal and cover all fitted.  trying to get top onto leg, no amount of strength will force it down far enough to let me even try to screw the cap on. i am reasonably fit and weigh 15stone but cannot compress it enough - tips ?

this is the preload and pumping shaft, this is the only order i can fit it - am i correct ?   what purpose does the small spring serve, clearly the shaft doesnt compress, the big spring sits on top of the white end



Edited by Jim Mac - 05 Jul 2021 at 16:27
V85 TT Trzvel    BMW R45
Too old to die young
Back to Top
 Post Reply Post Reply
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 12.03
Copyright ©2001-2019 Web Wiz Ltd.

This page was generated in 0.094 seconds.