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getting the rotor off?

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malmojoe

getting the rotor off?

#1 PostAuthor: malmojoe » Sun Jan 01, 2012 10:47 pm

any ideas how I can get it off without the 'special tool'?

many thanks

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zed1015
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#2 PostAuthor: zed1015 » Sun Jan 01, 2012 10:52 pm

Z9/1000 motor?
Use the rear wheel spindle or swingarm spindle .
They have the same thread as the puller and will do the same job.

malmojoe

#3 PostAuthor: malmojoe » Sun Jan 01, 2012 10:55 pm

thanks Zed1015 I'll give it a bash :wink: tomorrow.

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Al
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#4 PostAuthor: Al » Sun Jan 01, 2012 10:55 pm

If it a Z1r use the centre bolt from the top yolk.
If its a J type, borrow mine.

AL
1981 J1

malmojoe

#5 PostAuthor: malmojoe » Sun Jan 01, 2012 11:00 pm

thanks for the offer Al, its a Z1. I'm stripping it to remove the shrapnel left from a piston which took out the valves. Any other tools/trick I may need once I've split the cases - whole new world to me.

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zed1015
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#6 PostAuthor: zed1015 » Sun Jan 01, 2012 11:24 pm

malmojoe wrote: Any other tools/trick I may need once I've split the cases - whole new world to me.


No other special tools needed really if it's a simple stripdown, you can even leave the clutch on the input shaft if you haven't got a clutch holding tool to aid the removal of the center nut.
When splitting the cases look for the m8 threaded holes fore and aft in the lower crankcase,
Screw some long bolts in to these once all the case bolts have been removed, they will press the cases apart and will avoid any of the butchery accociated with old screwdrivers and pry bars.

malmojoe

#7 PostAuthor: malmojoe » Sun Jan 01, 2012 11:28 pm

Thanks for the tips. I am going to start a project thread soon, since I have now completely stripped the bike to a bare frame and a box of parts :lol:

should have just bought a litre of oil :evil:

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Pigford
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#8 PostAuthor: Pigford » Mon Jan 02, 2012 8:51 am

Use one of those "tie-down" straps to hold the rotor/crank still whilst doing the bolt up - this will alleviate any damage to it :wink: I do this & tie the end off to the foot rest as an anchor :!:
And on the 7th day... Zeds were created!

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Garn 1
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#9 PostAuthor: Garn 1 » Mon Jan 02, 2012 9:56 am

Maimojoe, watch out for the small woodruff key when you pull the rotor off, They are often sheared off so neatly, you have trouble seeing it.
I use an automotive filter extractor to hold the stator.

When splitting the cases, ensure you have removed all bolts.. check then check again.
RegardZ
Garn (Sydney) Z1, Z1A, Z1B and Z900-A4

neilbarrett
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#10 PostAuthor: neilbarrett » Mon Jan 02, 2012 8:27 pm

rotor pullers about £15 from z power

malmojoe

#11 PostAuthor: malmojoe » Mon Jan 02, 2012 9:27 pm

thanks for all the tips. It came off pretty easily using the center bolt from the forks - the rear axle was too big. Does that mean I've got the wrong rotor? or even the wrong crank? I have got a (slightly) beefed up swing arm (possibly off a later model?) so maybe not a standard spindle??
Anyway, the woodruff key and taper was fine, but one of the spring loaded cylindical bits popped out, hope that isn't something to worry about and I can get it in when I've got a bit more time.
Been painting a smaller/warmer room to work in so will split the cases next time.

thanks again
Glyn

gray
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#12 PostAuthor: gray » Sun Jan 08, 2012 9:54 pm

the spring loaded cylindrical bits ( there will be 3 chromed rollers and 3 springs behind them) ) are part of the starter clutch mechanism - they grip the crank in 1 direction when they're spun by the starter motor when you press the button, but let go as the crank speeds up to idle. When reinstalling , make sure they're sitting correctly and refit the rotor with a twisting action to make them retreat into their recesses
gray


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