Re: Diaphragm springs query
Posted: Sat Apr 25, 2015 12:45 pm
Yeah, sound advice indeed. When I started this whole rigmarole I thought the clutch was on its way out. I thought I felt a bit of slip and all the engagement was right at the end of the clutch lever travel, so I decided to give it a going over before it let me down.
When I stripped the clutch, I checked the friction plates which were all well within the service limits quoted in the Haynes manual, but I'd bought new plates, so fitted them anyway. The steel plates are fine too, completely flat and showing little or no signs of wear at all. The springs are the same, well within listed tolerance. I measured them again last night, totally regular right round the inside circumference, measuring at just a gnat's chuff under 5.5mm, and the Haynes book states 4.8mm as minimum allowable.
So, for now I am working on the assumption that I was being a ham-fited baboon when I set the cable last time and that a bit more care taken later this evening will produce a satisfactory result. I may have been leaping to entirely the wrong conclusion before.
The warped EBC springs are going back and I'm gonna give the standard springs another try.
One last thing for now, just out of curiosity, when the clutch lever is pulled back to the bar, how far should the pressure plate actually move?
With the lever released, I have set mine so that the lifter plate is just clear of the internal circlip on the pressure plate, to ensure there's no initial slippage caused by the cable being too tight, and when the lever is pulled back to the bar the pressure plate is lifted by about 1.5mm. Does this sound about right?
I haven't put it all back together yet to try it properly, but it does disengaged the drive to allow the bike to be pushed when in gear, but I'm just wondering if it is moving far enough?
Cheers.
When I stripped the clutch, I checked the friction plates which were all well within the service limits quoted in the Haynes manual, but I'd bought new plates, so fitted them anyway. The steel plates are fine too, completely flat and showing little or no signs of wear at all. The springs are the same, well within listed tolerance. I measured them again last night, totally regular right round the inside circumference, measuring at just a gnat's chuff under 5.5mm, and the Haynes book states 4.8mm as minimum allowable.
So, for now I am working on the assumption that I was being a ham-fited baboon when I set the cable last time and that a bit more care taken later this evening will produce a satisfactory result. I may have been leaping to entirely the wrong conclusion before.
The warped EBC springs are going back and I'm gonna give the standard springs another try.
One last thing for now, just out of curiosity, when the clutch lever is pulled back to the bar, how far should the pressure plate actually move?
With the lever released, I have set mine so that the lifter plate is just clear of the internal circlip on the pressure plate, to ensure there's no initial slippage caused by the cable being too tight, and when the lever is pulled back to the bar the pressure plate is lifted by about 1.5mm. Does this sound about right?
I haven't put it all back together yet to try it properly, but it does disengaged the drive to allow the bike to be pushed when in gear, but I'm just wondering if it is moving far enough?
Cheers.