special tool for removal of flywheel nut or tips

discussion about the 750 Sport and '89/'90 900SS, which share many mechanicals with the Paso series
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ir_joep
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model: 750 Sport
year: 1989
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special tool for removal of flywheel nut or tips

Post by ir_joep »

Hi,

Who will lent me his/her special tool to remove the flywheel nut. The tool will hold the rotor and stop it from turning.

I live in Haarlem in the Netherlands.

If not, how knows where to buy?

Many thanks Joep
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paso750
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Re: special tool for removal of flywheel nut or tips

Post by paso750 »

To remove the nut you don`t necessarily need the tool. If you have an impact wrench you can use that. (Supermarkets and car shops sell 12V impact wrenches for 20-30 Euros once in a while). Of course you cannot use that for assembly !
According to the Haynes manual you can also put the bike in high gear and hold the rear brake to loosen and tighten the nut. Not sure if I would do that as it puts a lot of stress on the gearbox. At least I wouldn`t recommend to do this more often.
If you are a customer from Startwin, Biggelaar or some other shop I would ask there if they may lend you the tool on a weekend, maybe for some small fee.

http://www.sd-tec.de/catalog/product_in ... ef37315e07

G.
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ir_joep
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Re: special tool for removal of flywheel nut or tips

Post by ir_joep »

Many, many thanks,

I have used an air impact tool but it didn't loosen the nut... Or does it take a while?

Somebody suggested heat and an impact tool. But as always I'm afraid to demolish some other part(s) so I'll hope not to burn the engine.

Thanks again for your help.
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paso750
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Re: special tool for removal of flywheel nut or tips

Post by paso750 »

heat won`t be necessary. I don`t know how strong your compressor is and what torque your impact tool reaches with the pressure given from your compressor. If you have a 25l air compressor like I do it`s 8bar max and the constant pressure it can deliver is maybe 6. No clue if that is enough.
My 12V impact wrench that I use for changing wheels on the car revvs up and then "hits". It may take 3-4 hits until the wheel nuts come loose and those are tightened with 120NM. I don`t recall exactly but the flywheel nut is somewhere around 140-190NM so it sits very tight. (btw does the nut have right or left hand thread?)

G.
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paso750
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Re: special tool for removal of flywheel nut or tips

Post by paso750 »

this one is less than €80 incl shipping to NL

http://cgi.ebay.com/DUCATI-Belt-Drive-L ... 2a8b2#shId
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ir_joep
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year: 1989
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Re: special tool for removal of flywheel nut or tips

Post by ir_joep »

Yes got the nut off!!!

No special tool just patience and heat (to weaken the Loctite bond). I did use the air impact tool and some heat and cool down cycles.

FYI:
The compressor I used had 7 bar. The tool has the following specs: working pressure 6 bar, 360 l/min, 345 Nm

Now the next step is to change to another flywheel for a Kokusan ignition and tightend the nut again.

Does anyone knows which Loctite to use?


Paso 750, I think i might need the special tool after all in order to tightend the nut. Many thanks for your feed back and www links to the tools.

Cheers Joep
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paso750
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Re: special tool for removal of flywheel nut or tips

Post by paso750 »

Does anyone knows which Loctite to use?
2701
You could try to tighten the nut as described in the Haynes manual before buying the tool. You`d just need someone to hold the rear brake.

G.
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Re: special tool for removal of flywheel nut or tips

Post by higgy »

A little late into this thread :wacko:
Loctite generally can be softened with a heat gun or hair dryer. It takes about 400F(204C) Propane can be used as a last resort away from anything remotely flammable. Take your time and use an impact gun while its hot. Clean all the treads with a wire brush before re applying any loctite products
Ducati,making mechanics out of riders since 1946
There's no problem so bad that a little fixing can't make it worse! : )
If it ain't broke keep fixin it till it is
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ir_joep
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Joined: Sun Jul 26, 2009 7:35 pm
model: 750 Sport
year: 1989
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Re: special tool for removal of flywheel nut or tips

Post by ir_joep »

Hi,

I have tried the brake trick. Something was slipping....I think I need a new clutch!!!

During riding I never noticed.

Thanks again for all your wishdom.

Greetz Joep
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jcslocum
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Re: special tool for removal of flywheel nut or tips

Post by jcslocum »

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ir_joep
Posts: 107
Joined: Sun Jul 26, 2009 7:35 pm
model: 750 Sport
year: 1989
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Re: special tool for removal of flywheel nut or tips

Post by ir_joep »

Many thanks pointing me out to that www-site. It is full of usefull tips.

Cheers Joep
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