clutch center question

pelican · Jul 8, 2009

How can I remove the clutch center nut when my final drive chain and tire are off? I don't have the locking tool. Maybe a strap wrench on the spindle and wrench the nut? Just wondering if there is an easy way without damaging anything.

littlefield · Jul 8, 2009

I've seen pictures of a piece of wood jammed diagonally between the engine sprocket and clutch basket to lock them together.

bigstu · Jul 8, 2009

I fit a piece of metal about 25mm wide, 3mm thick and long enough to form a jam between the basket and the clutch inner teeth. (carefully made to give good contact).
I then fit another one which jams between the clutch basket outer teeth (belt drive) which locks in a similar way to the stud which holds the outer cover on...get it far in towards the centreline of the bike to avoid bending. Just give easy pressure, no slaps with a mallet!

The centre nut should not be too tight....

Alternativley you could get 2 old clutch plates, one of each, and bolt them together. Use the bolts to hold a handle on...hey presto!

swooshdave · Jul 8, 2009

An impact wrench should loosen it without strapping anything down.

L.A.B. · Jul 8, 2009

pelican said:
How can I remove the clutch center nut when my final drive chain and tire are off? I don't have the locking tool.

Find two 5/16" UNF bolts approx 3" in length, and screw them a few turns into the two extractor holes in the clutch centre.

Fit an open-ended or ring spanner/wrench onto the centre nut, and then pass a lever between the two bolts.

You can then hold the clutch centre by the lever and bolts as you loosen the nut.

The bolts could begin to bend before the nut loosens? So use old bolts, as they may have to be consigned to the scrap bin afterwards!

Commando74 · Jul 8, 2009

swooshdave said:
An impact wrench should loosen it without strapping anything down.

I also used a power impact driver....rented one for 10 bucks.....piece a cake with that thing.

Eric

JimC · Jul 8, 2009

I know that in, some cases, this is not practical, but an air compressor and air tools are almost a necessity. Air tools themselves are relatively cheap, certainly much cheaper than electric tools. I don't know what I'd do without them.

BrianK · Jul 8, 2009

It's been too long since I did this, but I believe an impact wrench took it off right easy.

BUT I don't remember how I secured it in place to torque the nut back on....since I'm about to do it again, I'll have to remember or would welcome suggestions.....

pelican · Jul 8, 2009

Thanks for the tips... I'll have to see what I can rig up 2night

Commando74 · Jul 9, 2009

BrianK said:
It's been too long since I did this, but I believe an impact wrench took it off right easy.

BUT I don't remember how I secured it in place to torque the nut back on....since I'm about to do it again, I'll have to remember or would welcome suggestions.....

I have a clutch plate that is toothed on inside and outside....that locks the whole assemble up and when the rear brake is engaged the thing will tighten up nicely....

looks like this but without the handle...

I didn't use the 70 ft/lbs torque setting though as I have read that it'll damage the circlip behind the clutch basket...as per the service notes I used locktite and torqued to around 40 ft/lbs.

Eric

B+Bogus · Jul 9, 2009

Just been reading the comments regarding air tools, and I'm in total agreement - my garage is equipped with a decent compressor, and a 1/2" impact wrench was essential in getting some seized-in crankcase bolts out recently.
However....I was helping out my brother at a car race meet recently, and the pit-lane was full of guys using electric impact wrenches. I haven't checked prices, but they were definitely doing the job well!
Could be worth investigating... :wink:

BrianK · Jul 9, 2009

Mine is electric, 1/2 inch drive (I don't have a compressor) and it works fine. I think it was all of $25 off eBay (plus shipping).

Commando, I don't have one of those but got it done....somehow. I gotta remember how.

plj850 · Jul 13, 2009

pelican said:
How can I remove the clutch center nut when my final drive chain and tire are off? I don't have the locking tool. Maybe a strap wrench on the spindle and wrench the nut? Just wondering if there is an easy way without damaging anything.[/q]

I used a small piece of wood wedged in the gap between primary chain and clutch basket, needed to give it a few taps to loosen on re-assembly used loctite and 50 ft lbs and a new tab washer. (You do not want that nut loosening off :cry: !)

clutch center question

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