clutch chainwheel

[olev]

Brian,
Sometime back you fitted a sealed ball bearing into a plunger clutch.
how did it go over the long term?
Is it still working?
cheers

[Tumbleweed]

hi olev , I think you have the wrong geezer,   tw

[Tumbleweed]

hi again , the  bearing is fitted, and there is still loads of play I still have a feeling something is missing I was looking at bikerbobs pics and the last one shows the chainwheel being almost flush on the inside of the wheel with the bearing  , on mine there is a third of the bearing sticking out from the inside of the wheel  just holding the second row of balls in ,    that's why I think something is missing     I managed to get a pic

[chaterlea25]

Hi TW,
That must mean that the outer race is sticking out through the rear of the chain wheel????
I am assuming that the "new" inner and outer are the same width ?
If so press it back  so as both parts line up

HTH
John

[BSA_54A10]

There is a very thick plain steel plate that goes on the clutch center first.
Without it the clutch basket will sit too close to the back of the chain case.

[KiwiGF]

From memory the outer race protrudes about 020 through the back of the chain wheel on mine but you adjust to suit the thickness of friction material in the chain wheel you have, so maybe you press it back out a bit to cover the balls ?

Is the all Metal friction backing plate behind the chain wheel (part 15) in good condition ? without recesses worn into the plate where it fits against the clutch centre?

Are the friction pads in the chain wheel the correct thickness? And not worn too thin?

Asking the obvious....sorry....the inner race of the bearing is definitely back hard against the backing plate? did you trial fit the big clutch nut to force it all the way back?

I have a Draganfly style aluminium caged bearing and my clutch works great, but I can't see how the bearing significantly reduces wobble when the clutch is fully assembled  I suppose a better bearing might help but if it wears even slightly I would think the chain wheel would be free to wobble....

[Brian]

Olev I have sold that bike but as far as I know it is still working well.

[Tumbleweed]

hi  everybody thanks for your help, the outer ring on the chainwheel is 10mm , the bearing is 15mm, if I move the chainwheel    out to the front of the bearing making it level the chainwheel is out of line with the engine sprocket , I am thinking perhaps it is the wrong chainwheel or something , it has been put together as the drawing ,    tw

[Tumbleweed]

thanks for your input chaps , ive bought a 4 spring set up off fleabay ,  it will arrive in a couple of days   . tw