Blown Front Fork Seals
Posted October 09, 2001 - 10:16 AM
Posted October 09, 2001 - 01:12 PM
Hello. The solution to your problem is more than likely an easy fix.
- Remove fork guards.
- Use a thin-blade flat screw driver to gently pry open the dust cap.
- Slide the dust cap down the fork tube.
- Slide a piece of photographic film between the fork tube and the fork seal.
- Gently work the film in a continually downward motion around the leg. This will ensure that the dirt/grit that is causing the seal to leak is removed.
- Clean out dust cap. Fill with Lithium grease.
That is the method I use on my '99WRF and am still on the originally seals! No leaks!
Keep it on the back wheel.
Posted October 09, 2001 - 02:27 PM
The problem is dirt getting in under the seal.
Posted October 10, 2001 - 08:31 AM
Thank you for the response I'll try to fix it. I just have a doubt, the bike has an upside down suspension, in the step by step description, you say "DOWNWARD move between the leg and the fork seal" the fork seal is the dust cap, that I slid down? I suppose not. Isn't there another step that after removing the dust cap I have to try to get out the actual oil seal down? The Lithium grease is to "glue" any future dirt?
Thanks for your reply.
Posted October 10, 2001 - 01:11 PM
The grease will hopefully let the new dirt stick to it instead of getting wedged in the oil seal.
Posted October 11, 2001 - 03:29 AM
Posted October 11, 2001 - 06:49 AM
Posted October 11, 2001 - 10:57 AM
Two questions remain: (1) the dealer has two kinds of fork oil;
Motul Comfort light 2.5W-5W and;
Spectro SX 400 5W,
which oil is best?
(2)Secondly, I weigh 178 pounds (81 kgs) without gear, which oil height is recommended for riding in the woods (no jumps, although I also don't like a too plushy front fork. The stock oil hight seemed quite right. What do you suggest? Thanks a lot for the advice!
Posted October 11, 2001 - 01:22 PM
I'd use the Spectro 5wt and set it at 100mm.
Posted October 12, 2001 - 01:49 AM
Posted October 16, 2001 - 10:01 AM
It won't hurt to check your fork tubes with an accurate micrometer to make sure they are not undersized.
old guy and GPS geek