Knock when braking

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Dazjm
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Knock when braking

Post by Dazjm »

Anyone else find there is a "knock" noise and feeling from the bars when pulling on the front brake under load?

Is it coming from the forks? changed the calipers, to see if it would stop, but its still there..

Im sure i saw someone post that they were suffering from something similar.
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RedStormV
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Post by RedStormV »

Deffo steering head bearings by the sound of it - might just need a bit of a nip up.

You find a home for those 2 bolts yet?
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Dazjm
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Post by Dazjm »

So, nippin them up would involve, tightening the nut on the top yoke?

Or is it slightly more drastic?
You find a home for those 2 bolts yet?
Ye, im sure they were in the front calipers, but i have replaced them with 4 new honda bolts, but i kept those. Just in case!
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RedStormV
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Post by RedStormV »

Oh but if it were only that simple mate.

It's not too bad a job, can do it on your own, but better with 2 of you.

Clip-ons & top yoke need to come off to get at the steering head bearing adjuster and lock nut.

Should be in service manual which you can find here:

http://www.vtr1000.org/phpBB2/viewtopic.php?t=9413
alan
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Post by alan »

just undo top yoke nut, if you look below the yoke you will see a castelated washer/nut type get a screwdriver and tap it round slightly to nip it up dont over do it though, tighten top yoke nut go for a test see if it stops if it doesnt cure with adjustment then maybe the bearings need changing.
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RedStormV
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Post by RedStormV »

alan wrote:just undo top yoke nut, if you look below the yoke you will see a castelated washer/nut type get a screwdriver and tap it round slightly to nip it up dont over do it though, tighten top yoke nut go for a test see if it stops if it doesnt cure with adjustment then maybe the bearings need changing.
I'm sure Al's probably right in being able to do it this way - never tried it myself. However, there are actually 2 castlated nuts and a locking tab washer. Not so sure it's advisabe to knock all round together, but like I said, never tried it.

The Haynes manual (which is crap for CCT's) is OK with this bit though.

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I do it without removing the tank and fairing myself, but do find that the front brake lever needs to be un-fastened from clip-on to allow clip-on to be removed.

I also don't bother with making sure reservoirs are held level, just make sure caps are secure and drape an old sheet or blanket over tank and fairing sides to protect them from scratches.

Oh, and correct torques are:

Top yoke fork clamp bolts - 23nM (17 lbf feet)
Steering head bearing adjuster nut - 25nM (18.4 lbf feet)
Steering stem nut - 103nM (76 lbf feet)
Clip-on clamp nut / bolt - 27nM (19.9 lbf feet)

HTH
Last edited by RedStormV on Mon Jun 16, 2008 6:08 pm, edited 1 time in total.
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Dazjm
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Post by Dazjm »

Ahh, nice one mate.

Thanks for the effort :)
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Dazjm
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Post by Dazjm »

Well, i adjusted the adjuster nut!

Seems to have fixed the knocking sensation in the bars. Cheers lads. Just got brakes to sort now.. :o
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RedStormV
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Post by RedStormV »

Good show, glad you got sorted :)
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pariah
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Post by pariah »

Yeah I get that sound when braking, now I know what it is and how t fix.

Many thanks restorm yhs a gent. :D :D
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