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r15suk 05-May-2015 13:07

Clutch Pressure Plate Movement
 
Can anyone please tell me the distance the pressure plate should move out when the clutch lever is pulled fully in?

I've heard that the movement should only be 1 - 1.2 mm

cheers
Simon

dunlop0_1 05-May-2015 18:57

Not sure about the measurement but I like to be able to turn the pressure plate with my fingers with the lever pulled back.

:)

r15suk 05-May-2015 23:03

Thanks for the info. Mine is moving so much that the end friction plate pops out of the basket :-0

dunlop0_1 06-May-2015 06:27

The hydraulic movement of the push-rod/cylinder should not alter as it is fixed. If anything wear or air in the system would create less movement. Sounds more like the stack is incorrect/rusty/dirty or has too many plates. Possible drum issue so It really needs a complete strip down.

:)

r15suk 06-May-2015 12:58

Quote:

Originally Posted by dunlop0_1
The hydraulic movement of the push-rod/cylinder should not alter as it is fixed. If anything wear or air in the system would create less movement. Sounds more like the stack is incorrect/rusty/dirty or has too many plates. Possible drum issue so It really needs a complete strip down.

:)


Stack height is correct as spec 38mm (Haynes) and its quite new. The issue only came about when I fitted a lever with a greater span adjustment and could pull it back to the bar further. This translated into more clutch movement and off popped the plate. I have an Oberon slave fitted so maybe this allows more piston movement and hence more rod movement..

skidlids 06-May-2015 22:28

what clutch spring caps do you have

dunlop0_1 07-May-2015 06:27

Quote:

Originally Posted by r15suk
Stack height is correct as spec 38mm (Haynes) and its quite new. The issue only came about when I fitted a lever with a greater span adjustment and could pull it back to the bar further. This translated into more clutch movement and off popped the plate. I have an Oberon slave fitted so maybe this allows more piston movement and hence more rod movement..



I think you have answered your own question.

:)

r15suk 07-May-2015 10:29

Quote:

Originally Posted by skidlids
what clutch spring caps do you have


After market ones, but I'm not sure of the make. Can this make a difference?

cheers
Simon

antonye 07-May-2015 13:16

If you've still got your originals it's worth comparing them to make sure they're the same depth. The 1098 and Hypermotard (and probably others) have different depth spring caps to change the clutch setup so you may have the wrong ones.

r15suk 07-May-2015 13:36

Quote:

Originally Posted by antonye
If you've still got your originals it's worth comparing them to make sure they're the same depth. The 1098 and Hypermotard (and probably others) have different depth spring caps to change the clutch setup so you may have the wrong ones.


Thanks for that, i'll see if I still have them.

Cheers
Simon


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