Clutch Cable failure

21 posts / 0 new
Last post
Aeroscreens
Aeroscreens's picture
Online
Last seen: 51 sec ago
Joined: 17/04/2014

It is strange as I bought my 7 in 1999 (it was 6 years old) and only changed the cable when the operation of the clutch became stiff. It transpired that the inner 'plastic' sheath had become rucked up, no sign of fraying. New cable fitted in March 2006 (51,300 miles) currently on 92,000 miles with the same cable.

 

 

www.C7CAT.com

Member since March 1998

SM25T
SM25T's picture
Online
Last seen: 6 min 10 sec ago
Joined: 17/04/2014
KOD there Chris. For the same reason I am not commenting, but replaced my cable in I think 2009 when gearbox was being serviced and clutch replaced. Probably 70k miles since.
Dave_P
Offline
Last seen: 1 week 6 days ago
Joined: 17/04/2014

Does not prevent the fork end breakage but I run a little engine oil between the cable and the outer from the top end. I know the liner is probably low friction but the oil does make for a very smooth push. Don't know if it increases longevity but ok up to date. But carry a spare anyway.

MadCat52
MadCat52's picture
Offline
Last seen: 2 days 20 hours ago
Joined: 17/04/2014

Has anyone fitted a clutch pedal stop ... I suspect part of the problem is over-travel of the pedal putting a strain on the cable ends.  Any thoughts on the best way to fit a stop/pictures appreciated.  Thanks

Bob

Wrightpayne
Wrightpayne's picture
Online
Last seen: 4 min 9 sec ago
Joined: 17/04/2014
MadCat52
MadCat52's picture
Offline
Last seen: 2 days 20 hours ago
Joined: 17/04/2014

... yes, thanks.  That looks like it fits in the footwell bulkhead.  Does anyone have a photo of a stop at the top of the pedal box that works on the top of the pedal?

Wrightpayne
Wrightpayne's picture
Online
Last seen: 4 min 9 sec ago
Joined: 17/04/2014

Thats a good idea a always thought the stop fitted in an ally floor not ideal. That said the cable end of the clutch pedal has a lot of mechanical advantage.

On the caterham parts website there are other clutch stop parts (CSR Race) but I couldnt figure out how they work?

Bricol
Offline
Last seen: 1 day 21 hours ago
Joined: 17/04/2014

I fitted a stop through the end of the footwell - simply a long bolt, a large washer inside to spread the load, a bit smaller on e outside, a nut each side to set position and secure it.  No deformation after a good few years and lots of gear changes.

One fitted at the top end, as already mentioned, would have to a lot stronger to resist the considerable mechanical advantage the pedal creates.  

Bricol
Offline
Last seen: 1 day 21 hours ago
Joined: 17/04/2014

CSR is hydraulically operated, so I guess that that threaded metal disc screws on the master cylinder pushrod and physically stops the pushrod entering any further into the master cylinder.  

 

Wrightpayne
Wrightpayne's picture
Online
Last seen: 4 min 9 sec ago
Joined: 17/04/2014

Thanks Bricol, that makes sense.