whitestu
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| posted on 14/4/09 at 10:33 AM |
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OT Motorbike Fork Oil Seals
I'm trying to change the oil seals on my FZX750 and can't get the buggers out!
I've got forks fully apart [top nut, spring and damper rod all out] but can't get the two tubes to seperate.
I've already tried giving it loads of welly pulling the two apart and it won't budge.
Any suggestions?
Thanks
Stu
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Triton
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| posted on 14/4/09 at 10:38 AM |
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Is there anything underneath where spindle runs...like a big allen bolt?
My Daughter has taken over production of the damn fine Triton race seats and her contact email is emmatrs@live.co.uk.
www.tritonraceseats.com
www.hairyhedgehog.com
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handyandy
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| posted on 14/4/09 at 10:42 AM |
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yep what he said ^^^^^^^.
if there are bolts at bottom of forks, undo em & tubes should seperate then take fork seals out.
andy
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whitestu
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| posted on 14/4/09 at 10:42 AM |
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quote:
Is there anything underneath where spindle runs...like a big allen bolt?
The allen bolt holds the damper rod in, but that's already been removed.
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handyandy
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| posted on 14/4/09 at 10:45 AM |
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in that case maybe there is a circlip hiding underneath the fork seals that stop the upper tubes being removed, have you prised the seal or dust cover
away from where they sit on the fork? sorry not had same bike as you.
hth
andy
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Triton
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| posted on 14/4/09 at 10:48 AM |
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Yep big circlip under the seal and bingo they will come apart, Been awhile since i did owt like that but easy really.
My Daughter has taken over production of the damn fine Triton race seats and her contact email is emmatrs@live.co.uk.
www.tritonraceseats.com
www.hairyhedgehog.com
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whitestu
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| posted on 14/4/09 at 10:48 AM |
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quote:
in that case maybe there is a circlip hiding underneath the fork seals that stop the upper tubes being removed, have you prised the seal or dust cover
away from where they sit on the fork?
Thanks
Should have said the circlip and dust cover are also off - there doesn't appear to be anything to stop the forks coming apart other than the
seal.
Stu
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handyandy
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| posted on 14/4/09 at 10:54 AM |
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Hmmmm the seals should prise away from the tube with a helpful screwdriver
can,t think of anything else to hold them in???
andy
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MikeCapon
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| posted on 14/4/09 at 11:02 AM |
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Hold the fork leg in a vice and providing you've removed the plunger (bit held in to fork leg with allen bolt) and the wire circlip (under the
dust seal) you then need to use the fork tube a bit like a slide hammer. This will then gradually knock out the seal and the bush which lives in the
top of the fork leg.
This won't work just by pulling on the fork tube. You need to use the inertia of the tube to knock out the seal and the bush.
Have fun!
Mike
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NigeEss
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| posted on 14/4/09 at 11:02 AM |
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Some times the top guide bush comes out at the same time and these can be tight.
Clamp the lower leg in a vice by the caliper mounts and use the top leg as a slide
hammer. A few good pulls and they should budge.
HTH
Nige
Time is an illusion. Lunchtime doubly so.................Douglas Adams.
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whitestu
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| posted on 14/4/09 at 11:06 AM |
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Thanks
All the bolts / circlips are out.
quote:
you then need to use the fork tube a bit like a slide hammer
That's what I've been doing, until my arms ache and everything has fallen off the shelves above my bench! And it hasn't moved at
all.
Stu
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Mr Whippy
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| posted on 14/4/09 at 11:25 AM |
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quote:
Originally posted by whitestu
Thanks
All the bolts / circlips are out.
quote:
you then need to use the fork tube a bit like a slide hammer
That's what I've been doing, until my arms ache and everything has fallen off the shelves above my bench! And it hasn't moved at
all.
Stu
glad thats not my bike 
Fame is when your old car is plastered all over the internet
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whitestu
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| posted on 14/4/09 at 11:27 AM |
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quote:
glad thats not my bike
Thanks!!
I need to get it sorted for the MOT on Friday!
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thebull
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| posted on 14/4/09 at 11:32 AM |
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fasten lower fork leg in a vice and use the chrome stantion as a slide hammer.
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whitestu
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| posted on 14/4/09 at 11:41 AM |
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quote:
fasten lower fork leg in a vice and use the chrome stantion as a slide hammer.
Thats what I've been doing!
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NigeEss
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| posted on 14/4/09 at 12:08 PM |
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Gently heat the area around the seals ?
Time is an illusion. Lunchtime doubly so.................Douglas Adams.
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oily85
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| posted on 14/4/09 at 01:56 PM |
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I had the same problem on one fork of my cb500, turned out the previous owner had siliconed the fork seal in, so had to prize the seal off first with
a screwdriver.
Id been using the fork tube like a slide-hammer for so long and so hard, that when it eventually came apart, I also needed new bushes, as they'd
been smashing into each other for about 3 hours and one had a step in it about half way down.
The right fork seal, which hadn't been siliconed in, took me three slides of the fork to remove.
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whitestu
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| posted on 14/4/09 at 05:49 PM |
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I heated it up and it came out a lot easier - both out now so just need to reassemble them.
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handyandy
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| posted on 14/4/09 at 06:56 PM |
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glad you got it sorted 
sounds like it was a bit of a pain in the butt tho
my vfr750 needs the seals doing, your thread,s made me think "must get it done".
cheers
andy
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whitestu
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| posted on 15/4/09 at 08:17 AM |
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I think it depends on the bike how difficult it is. On mine the top bush is a very tight fit and the bottom bush needs to push the top bush out as
well as push out the oil seal.
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