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clutch issues

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Crash- Elmit
the 800
the 800

Posts : 250
Location : Rothwell, Nr Kettering

Re: clutch issues

Post by Crash- Elmit on Tue 07 Mar 2017, 10:16 pm

This is the stuff I was talking about.



http://www.centuryspring.com/urethane

Chrisc54
Crotch Rocketuer
Crotch Rocketuer

Posts : 31
Location : swindon, wiltshire

Re: clutch issues

Post by Chrisc54 on Tue 07 Mar 2017, 10:19 pm

@Crash- Elmit wrote:This is the stuff I was talking about.



http://www.centuryspring.com/urethane

thats the stuff i can get at work
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Crash- Elmit
the 800
the 800

Posts : 250
Location : Rothwell, Nr Kettering

Re: clutch issues

Post by Crash- Elmit on Tue 07 Mar 2017, 10:47 pm

If I remember correctly the colour denotes the strength of the urethane, and red is the strongest.
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ANDYC
the 900
the 900

Mechanic
Posts : 937
Location : Windsor

Re: clutch issues

Post by ANDYC on Wed 08 Mar 2017, 10:22 am

@Crash- Elmit wrote:If I remember correctly the colour denotes the strength of the urethane, and red is the strongest.



The problem with urethane is it doesn't respond well to high temperatures and isn't recommended for use over 80 degrees.
I'm going to give Viton a try, it's good up to 200 degrees and resilient to most oils and fluids.
Most engines keep the oil at around 120 degrees, I will be fitting an oil temp gauge just to check. Although I have only ever seen an oil temp gauge capable of measuring up to 150 degrees. Top quality valve stem seals are made of Viton, so there must be something to it as the valves get much hotter than the clutch backplate ever will. (I hope)
There are small posts where the rivets or in my case screws go to act as spacers to allow movement between the basket and the backplate.

Chrisc54
Crotch Rocketuer
Crotch Rocketuer

Posts : 31
Location : swindon, wiltshire

Re: clutch issues

Post by Chrisc54 on Wed 08 Mar 2017, 7:09 pm

ah thats a shame the urethane wouldnt be any good
where abouts did you get hold of the viton from?

will add some to the list of bits to buy for my cb
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ANDYC
the 900
the 900

Mechanic
Posts : 937
Location : Windsor

Re: clutch issues

Post by ANDYC on Wed 08 Mar 2017, 8:32 pm

I  was wondering that myself this morning as I wrote that post.
It's come to my attention that because this project has already taken so long to come this close to fruition for one reason or another I'm beginning to loose track of different parts of it. 
I searched everywhere to find the receipt for the viton but to no avail. 
A good supplier should be able to get some though.

Chrisc54
Crotch Rocketuer
Crotch Rocketuer

Posts : 31
Location : swindon, wiltshire

Re: clutch issues

Post by Chrisc54 on Fri 10 Mar 2017, 11:31 pm

@ANDYC wrote:I  was wondering that myself this morning as I wrote that post.
It's come to my attention that because this project has already taken so long to come this close to fruition for one reason or another I'm beginning to loose track of different parts of it. 
I searched everywhere to find the receipt for the viton but to no avail. 
A good supplier should be able to get some though.

no worries, thanks for looking

have found a couple of places online that sell it so once ive got a spare basket to play with ill give the mod a try as the clutch rattle annoys the hell out of me
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Boodysaspie
Squiddy
Squiddy

Posts : 15

Re: clutch issues

Post by Boodysaspie on Sun 12 Mar 2017, 7:44 pm

My basket's so noisy, I daren't let the clutch out ...

Pretty please, will someone point me to the relevant page(s) in either the Haynes or the, ahem, manual?

Ta muchly.

Chrisc54
Crotch Rocketuer
Crotch Rocketuer

Posts : 31
Location : swindon, wiltshire

Re: clutch issues

Post by Chrisc54 on Fri 17 Mar 2017, 7:21 pm

@Boodysaspie wrote:My basket's so noisy, I daren't let the clutch out ...

Pretty please, will someone point me to the relevant page(s) in either the Haynes or the, ahem, manual?

Ta muchly.

not really much ive seen in the haynes manual about the clutch rattling

Chrisc54
Crotch Rocketuer
Crotch Rocketuer

Posts : 31
Location : swindon, wiltshire

Re: clutch issues

Post by Chrisc54 on Fri 17 Mar 2017, 7:25 pm

have now slightly reduced my clutch rattle by shimming 2 of the springs and replacing the other 2 with some i had laying around from a suzuki bandit that were around 1cm longer

will get another clutch basket next week as the springs in the back are loose as hell, a couple have 3-4mm of play in the slot
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Beresford
the 900
the 900

Posts : 1591
Location : not that far from Kirkistown

Re: clutch issues

Post by Beresford on Fri 17 Mar 2017, 8:08 pm

@ANDYC wrote:A good supplier should be able to get some though.
What diameter is required ? Can someone measure the springs and basket recess and post it up here please ?
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gopher
the 900
the 900

Posts : 278
Location : northern ireland

Re: clutch issues

Post by gopher on Fri 17 Mar 2017, 11:37 pm

Saw some Viton cord on eBay up to 10mm diameter , may do the job?
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ANDYC
the 900
the 900

Mechanic
Posts : 937
Location : Windsor

Re: clutch issues

Post by ANDYC on Sat 18 Mar 2017, 9:08 am

I'm using 21mm diameter viton cord.

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