Clutch/flywheel balance.

[newbuild100]

94 GS100

Slight, but long term niggles with my bike.
Can anyone answer this . .

Re Re-assembly of the flywheel/ "clutch housing cover" and pressure plate.
What would happen if these three parts were rebuilt in such a way that they formed an unbalanced unit ? (ie, not replaced as per when the bike left the factory.)

Would it be obvious re any noise and vibration ?
would the bike shake itself to bits ??

Thanks all.

 

[Kenny]

Can't see it making any difference !

 

[newbuild100]

Can't see it making any difference !

any idea why the books suggest the importance of getting the parts in correct "order" then ????

 

[Voyager]

They are supposedly balanced at the factory, but that doesn't mean it will be wildly out if not assembled in the same position.

There should be a white (probably feint yellow/grey by now) alignment mark on each component, can you see anything ?.

Failing that - suck it and see .

Bob.

 

[newbuild100]

They are supposedly balanced at the factory, but that doesn't mean it will be wildly out if not assembled in the same position.

There should be a white (probably feint yellow/grey by now) alignment mark on each component, can you see anything ?.

Failing that - suck it and see .

Bob.

Ive a deep rumbling from that area of the bike.
Everything has been checked and double checked, but to no avail.

Its only recently that I found out that the clutch parts should go back in the "correct" place after rebuild.

Going back into last year, I had to strip out the clutch and rebuild quickly.
The parts were pretty much thrown back in the bike (with a possibility that they werent in exactly the same place as before)

The bike certainly runs sweet enough but Im kinda thinking that the noise may be from a rushed rebuild, and the clutch parts unbalanced.
(Im not saying they are in the wrong "place", but there is always that slight chance)

I do recall at the time that there was no paint marks on any parts.

That leads to another question . .
. . without paint marks on used parts, how would one know where to place the 3 main clutch parts ? (Presuming the heavier "areas" need to be 120 degrees apart) ???

 

[dr nosh]

That leads to another question . .
. . without paint marks on used parts, how would one know where to place the 3 main clutch parts ? (Presuming the heavier "areas" need to be 120 degrees apart) ???

DIY before taking apart

Paint brush / paint

Thick tip felt pen

Paint marker (liquid fast dry paint in a felt pen)

 

[abrasion]

Should make no difference at all.
If you buy a replacement clutch how is that balanced to your bike?

 

[Voyager]

Ive a deep rumbling from that area of the bike.
Everything has been checked and double checked, but to no avail.

Is that . .

On the road with the clutch fully engaged.

at tickover in neutral.

Stationary, in gear with the clutch dis-engaged.

???

Sounds more like clutch splines or gearbox input shaft roller bearing to me.

Has the gearbox been checked-over at all (what's the mileage) ??


Regarding the balancing of replacement clutch parts . .

I've never heard of anyone balancing the assembly before fitting. I think one would have to remove the flywheel ( - the crank can drop, resulting in a full engine re-build) and balance it as a complete unit.

I think the problem lies elsewhere .

Bob.