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Spacer problem

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Chris45
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Joined: 23 Oct 2016
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PostPosted: 13:22 - 04 Mar 2017    Post subject: Spacer problem Reply with quote

Just cannot get the rear wheel back on my GPZ500S (97) because the flanged spacer on the right hand side is constantly snagging against the rear brake bracket. Have double checked everything is back on okay, which it is. The rear spindle slots through fine without the spacer, and the wheel rotates perfectly. But the flanged spacer is just too tight to get between the right hand side and the bracket holding the brake caliper. There is a 2 - 3 mm snag. Any ideas?
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Islander
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PostPosted: 17:42 - 04 Mar 2017    Post subject: Reply with quote

Check that the brake bracket is properly seated and make sure you keep the wheel absolutely square when refitting it.
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jaffa90
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PostPosted: 20:17 - 04 Mar 2017    Post subject: Reply with quote

That top hat spacer fits part way into the oil/grease seal and up against the inner ring of the wheel bearing, i had to partly open the swing arms on my gsx to fit the wheel.

Last edited by jaffa90 on 23:19 - 04 Mar 2017; edited 1 time in total
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Chris45
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PostPosted: 20:23 - 04 Mar 2017    Post subject: Reply with quote

Quote:
i had to partly open the swing arms on my gsx to fit.


Thought that myself but it's a bit concerning the spacer is such a tight fit and I'm sure it isn't meant to be like that. However your idea is the one I may have to go for tomoz.

Cheers
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CaNsA
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PostPosted: 21:06 - 04 Mar 2017    Post subject: Reply with quote

Chris45 wrote:
Quote:
i had to partly open the swing arms on my gsx to fit.


Thought that myself but it's a bit concerning the spacer is such a tight fit


The spacer is that size to fill the space.

A smaller spacer would make things all wobbly.
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temeluchus
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PostPosted: 21:08 - 04 Mar 2017    Post subject: Reply with quote

got the spacer the right way around?
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barrkel
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PostPosted: 22:28 - 04 Mar 2017    Post subject: Reply with quote

The spacer has to transmit the clamping force of the spindle from the swingarm through to the inner race of the wheel bearings. The wheel doesn't run on the spindle; the wheel runs on the bearings, the spindle just provides clamping force to grip the inner race of the bearings.

Just saying so your mental model is right when you're looking at what needs to make contact with what.
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Chris45
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PostPosted: 22:56 - 04 Mar 2017    Post subject: Reply with quote

Quote:
The spacer has to transmit the clamping force of the spindle from the swingarm through to the inner race of the wheel bearings. The wheel doesn't run on the spindle; the wheel runs on the bearings, the spindle just provides clamping force to grip the inner race of the bearings.

Just saying so your mental model is right when you're looking at what needs to make contact with what.


Yup, got all that thanks. Am still puzzled why there is 2-3 mm interference on the collar side. Have never encountered such a tight fit with spacers before, and I have had a fair few bikes over the years. If the fit is too tight, it will start putting undue stresses on the entire wheel/axle.

Need some help with this anyone...
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jaffa90
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PostPosted: 23:18 - 04 Mar 2017    Post subject: Reply with quote

Why did you remove the rear wheel?
Good advice has been given, as my last post really.
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pompousporcup...
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PostPosted: 08:09 - 05 Mar 2017    Post subject: Reply with quote

Get a mate to open the swing arm a bit. I have this issue with my gpz every now and then where all spacers are correct yet I cannot get the wheel in

I took it to my local tyre guy (ride in tyres in reading) and he had the wheel out and then back in in a matter of seconds. Made me feel a right twat as it took me over an hour lol
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Matt B
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PostPosted: 08:19 - 05 Mar 2017    Post subject: Reply with quote

Chris45 wrote:
If the fit is too tight, it will start putting undue stresses on the entire wheel/axle.


And those will be nothing compared to the stresses put on it when it's torqued up to around 100 nM.
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Fizzer Thou
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PostPosted: 09:59 - 05 Mar 2017    Post subject: Reply with quote

If new bearings were installed,check to make sure that they are seated correctly on the machined shoulder in the wheel hub.

On a bike that I worked on recently there was a small space once the back wheel and spacers were all installed correctly with the spindle.Once it was all torqued up correctly the space was taken up and everything was tight.
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Chris45
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PostPosted: 11:08 - 05 Mar 2017    Post subject: Reply with quote

Quote:
Why did you remove the rear wheel?


New rear rubber.

Thanks to all for the advice, am gonna get a mate to help open the swing arm by 2 mm and get the entire assembly lashed up.

Thanks to everyone for your replies.

Chris
Inverness
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pompousporcup...
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PostPosted: 12:46 - 05 Mar 2017    Post subject: Reply with quote

Thumbs Up It really wont take much to do it. Theyre not exactly the beefiest of swing arms
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sickpup
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PostPosted: 19:37 - 05 Mar 2017    Post subject: Reply with quote

Is the cush drive all the way in?
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Kawasaki Jimbo
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PostPosted: 21:39 - 05 Mar 2017    Post subject: Reply with quote

sickpup wrote:
Is the cush drive all the way in?

Thumbs Up

This reminds me, I took photos as I stripped my ZX6R but had a similar problem on reassembly. When I looked at Cradley Kawasaki's online microfiche it was apparent the the cush drive had previously been fitted back to front. One side has a different curvature, and also some moulded protrusions (-not on yours). The sprocket carrier had been slightly proud of the hub but I'd assumed it was supposed to be like that until everything was tightened up. Not so. Check the fiche and perhaps flip the cush drive over. Credit to sickpup if it works.
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tom_e
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Joined: 27 Feb 2016
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PostPosted: 10:26 - 06 Mar 2017    Post subject: Reply with quote

The cush drive, sprocket holder is a good shout. I normally have to get the rubber mallet out to make sure mine is seated flush.

Usually after spending 20 minutes calling the wheel a fucking cunt as I keep knocking the spacers out or knocking the caliper bracket off it's lug when I try to refit it.
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Old Thread Alert!

The last post was made 8 years, 319 days ago. Instead of replying here, would creating a new thread be more useful?
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