5 replies [Last post]
Rusty Cage
Rusty Cage's picture
 Offline
Auburn California
Joined: 09/30/2012
Posts: 56

I rebuilt my forks and replaced the rubber bumper stops and the soft metal gasket at the bottom of the damper rods. I tightened them both and now fork oil is leaking thru the threads. I snugged it tighter and they both still leak. Has anyone have this problem. Does anyone have any advice? Am i missing something? Thanks for any help.

  • fork_damper_screw.jpeg
__________________

1966 R69S - second owner, original condition
1975 R75 /6

schrader7032
schrader7032's picture
 Offline
VBMWMO #7032
San Antonio, TX
Joined: 10/27/2006
Posts: 6623
I've heard of this before.

I've heard of this before. I'd use a non-setting sealant such as Hylomar or Permatex Ultra Gray in this area. A light coat especially around the sealing washer.

__________________

Kurt in S.A.
'78 R100/7 '69 R69S '52 R25/2

Rusty Cage
Rusty Cage's picture
 Offline
Auburn California
Joined: 09/30/2012
Posts: 56
Lock tight?

Thanks Schrader. Would Lock tight be discouraged? That would seal the threads but I'd hate to set it to tight.

__________________

1966 R69S - second owner, original condition
1975 R75 /6

schrader7032
schrader7032's picture
 Offline
VBMWMO #7032
San Antonio, TX
Joined: 10/27/2006
Posts: 6623
I think you'd be fine with

I think you'd be fine with Hylomar. I suppose there is a non-setting version of Loctite...I'm only familiar with the "blue" and "red" versions and you don't want either of them.

__________________

Kurt in S.A.
'78 R100/7 '69 R69S '52 R25/2

mark_weiss
mark_weiss's picture
 Offline
Arizona
Joined: 11/17/2013
Posts: 173
Are you leaking from the

Are you leaking from the threads of the bottom plug to fork slider or from the hole for the damper rod bottom screw? If it is the damper rod, you should replace the inner crush washer again. Be sure that there are no burrs or upsets on the bottom screw fitting from the damper rod. If the leak is from the bottom plug, where it threads into the fork leg, there are two viable solutions. #1: Use some RTV sealant, black works well. Dab some on in four or five spots and smear to form a ring around the threads. There's no need to do much more than fill five or six consecutive threads. That will seal. Also, Permatex makes a few types of purpose specific thread sealant. Buell recommends the Permatex thread sealant for their transmission and oil tank drains. Works well.

__________________

Mark
qualitycycleservice.com

Rusty Cage
Rusty Cage's picture
 Offline
Auburn California
Joined: 09/30/2012
Posts: 56
thanks for the help

I used the Permatex thread sealer and it worked great.

__________________

1966 R69S - second owner, original condition
1975 R75 /6

Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.