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carlosthejack...
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PostPosted: 18:41 - 27 Jun 2011    Post subject: Fork seals. Reply with quote

How will I know if my fork seals are leaking on my '05 Hornet? My right upper fork leg has a bit of dirty smearing on it above where it goes into the lower, and the right hand side of my tank is spattered with fluid when I get to work. There's nothing running down the leg and the dust seal is intact. Feels ok too. I'm taking it back to the shop tomorrow for them to have a look at, but I was wondering if I need to? Does it sound like a leak or am I just being paranoid?

I'm saying it feels ok, it does feel a little 'juddery' under hard braking. Maybe not juddery as such, but not ultra smooth like I thought it would. Again, am I being paranoid?[/img]
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duhawkz
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PostPosted: 19:20 - 27 Jun 2011    Post subject: Reply with quote

I usually lift up the dust seal out of the way, wipe the forks clean then bounce the front a couple times then check if there is any oil on the forks or round the seals
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Last edited by duhawkz on 19:31 - 27 Jun 2011; edited 1 time in total
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Casper
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PostPosted: 19:29 - 27 Jun 2011    Post subject: Reply with quote

Its gone mate. Get them changed.
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carlosthejack...
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PostPosted: 19:41 - 27 Jun 2011    Post subject: Reply with quote

duhawkz wrote:
I usually lift up the dust seal out of the way, wipe the forks clean then bounce the front a couple times then check if there is any oil on the forks or round the seals


Just been and done that and yes, the right leg is smearing with oil after bouncing it.

I'm assuming that's what's causing the 'notcht' feeling under compression and braking? It feels clicky when I'm bouncing it.
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Responsibility. It's a difficult reality for some. I'm running the 2014 Sheffield Half Marathon on behalf of Bluebell Wood Childrens Hospice. Please sponsor me, even if it's just a quid.
DonnyBrago: "I think you may be confusing rain and napalm..." Paulington: "It's not what you ride, it's how you ride it."
Current rides: '05 VFR800 VTEC, '57 Mondeo 1.8 TDCi #58LEGEND
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.....
Quote Me Happy



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PostPosted: 19:45 - 27 Jun 2011    Post subject: Reply with quote

Check the headstock bearings as well as well as wheel bearings.
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Willson
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PostPosted: 20:10 - 27 Jun 2011    Post subject: Reply with quote

If you have floating discs that could be the notchyness/click. It is on my SV, the disc can move back and forward slightly.

Willson
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stinkwheel
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PostPosted: 21:16 - 27 Jun 2011    Post subject: Reply with quote

Might just be dust under the seals.

I only found this out recently and now wonder how many sets of perfectly good fork seals are changed every year because of a smear of oil on the stanchion.

If there is no pitting or marks on the stanchions, the seal should be ok. You can clean the dust out from underneath it by wrapping a thin, rigid piece of plastic film round the stanchion and pushing it down past the seal a couple of times. Photographic negatives are perfect for this.

My finacees CB500 was leaking so much oil from the seal it was starting to run down the fork leg. Did the film trick and it's still dry as a bone 1500 miles later.
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delsol
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PostPosted: 05:39 - 28 Jun 2011    Post subject: Reply with quote

stinkwheel wrote:
Might just be dust under the seals.

I only found this out recently and now wonder how many sets of perfectly good fork seals are changed every year because of a smear of oil on the stanchion.

If there is no pitting or marks on the stanchions, the seal should be ok. You can clean the dust out from underneath it by wrapping a thin, rigid piece of plastic film round the stanchion and pushing it down past the seal a couple of times. Photographic negatives are perfect for this.

My finacees CB500 was leaking so much oil from the seal it was starting to run down the fork leg. Did the film trick and it's still dry as a bone 1500 miles later.



Hi stinkwheel,

Can you give a link to the 'film trick', I'm assuming it has already been posted.

Thanks,
delsol
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stinkwheel
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PostPosted: 10:44 - 28 Jun 2011    Post subject: Reply with quote

delsol wrote:


Hi stinkwheel,

Can you give a link to the 'film trick', I'm assuming it has already been posted.

Thanks,
delsol


That's it, as I described in the post.

You wrap a piece of thin but rigid plastic tightly round the fork stanchion just abover the seal. I use a piece of photographic film. You then slide it down past the seal a couple of times. Cut the plastic to length so it wraps round the stanchion once, no doubling up.
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I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.
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carlosthejack...
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PostPosted: 11:33 - 28 Jun 2011    Post subject: Reply with quote

All changed, nice as pie now!
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Responsibility. It's a difficult reality for some. I'm running the 2014 Sheffield Half Marathon on behalf of Bluebell Wood Childrens Hospice. Please sponsor me, even if it's just a quid.
DonnyBrago: "I think you may be confusing rain and napalm..." Paulington: "It's not what you ride, it's how you ride it."
Current rides: '05 VFR800 VTEC, '57 Mondeo 1.8 TDCi #58LEGEND
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Rogerborg
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PostPosted: 11:27 - 12 Jul 2011    Post subject: Reply with quote

BUMPing to thank Mr Wheel for another excellent bit of advice.

stinkwheel wrote:
Might just be dust under the seals.

If there is no pitting or marks on the stanchions, the seal should be ok. You can clean the dust out from underneath it by wrapping a thin, rigid piece of plastic film round the stanchion and pushing it down past the seal a couple of times. Photographic negatives are perfect for this.


Stanchion drenched in oil Arrow pop dust seal off Arrow wiggle a feeler gauge around the oil seal Arrow dry stanchion.

Magic, many thanks. Thumbs Up
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