Jerry Rigged Rotor Holders: Strap Wrench?

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07 May 2012 21:27 - 07 May 2012 21:29 #520572 by mwriders
Breaker19's home built rotor (flywheel) holder is very clever, but I don't have a brake rotor to begin with and don't weld even if I did.

Yesterday I started to remove the rotor on a 440B to repair the starter clutch. I had a band type rotor holder designed for Harley's and it turned out to be slightly too small for the 440 rotor. So, I happily cut the rubber off of the thing, which made it fit, but which also slipped. The result was that I slipped a tooth on the cam chain (and scratched the rotor, which I don't imagine matters much) and now have to retime the cam. This is a pain, and I still don't have the rotor off.

Has anyone tried a strap wrench (like those used for oil filters only bigger) for this task? Did it work? They have the advantage of being both common and cheap.

1980 Kawasaki KZ440B (brand new eBaby)
1998 Ducati 900S (gone)
1978 BMW R100S (gone, damn it)
1975 Yamaha RD350 cafe (gone)
1986 Yamaha XJ650 Seca (gone)
1981 Kawasaki KZ440LTD (gone)
1969 HD Sportster (gone :)
1966 Honda CB160 (gone, damn it)
1965 Suzuki 80
Last edit: 07 May 2012 21:29 by mwriders. Reason: clarification

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07 May 2012 21:48 #520577 by osage
Replied by osage on topic Jerry Rigged Rotor Holders: Strap Wrench?
I bought a Vice-grip type chain wrench the last time I pulled my 750B1's starter clutch. It worked great. I used a couple different methods before but it was much easier with the vice-grip.

1976 KZ750B1
1982 KZ750H3

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07 May 2012 22:22 #520587 by steell
Replied by steell on topic Jerry Rigged Rotor Holders: Strap Wrench?
Oil filter strap wrench will work, as long as it's large enough.

You can also use a leather belt and a short pipe, large screwdriver, or even a large wrench, to make your own temporary strap wrench. Generally takes two people to use it though.

Air impact is the answer to removing it :)

KD9JUR

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07 May 2012 22:52 #520599 by wireman
Replied by wireman on topic Jerry Rigged Rotor Holders: Strap Wrench?
Wrap sandpaper around the inside of it before putting it around rotor B)

posting from deep under a non-descript barn in an undisclosed location southwest of Omaha.

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08 May 2012 08:17 #520666 by LarryC
Replied by LarryC on topic Jerry Rigged Rotor Holders: Strap Wrench?

steell wrote: Oil filter strap wrench will work, as long as it's large enough.

You can also use a leather belt and a short pipe, large screwdriver, or even a large wrench, to make your own temporary strap wrench. Generally takes two people to use it though.

Air impact is the answer to removing it :)


I can't even imagine working on engines without the aid of air impact wrenches and correct pullers....

Larry C.

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15 May 2012 11:46 #522497 by mwriders
Replied by mwriders on topic Jerry Rigged Rotor Holders: Strap Wrench?
The strap wrench does work. I came up with one designed for automotive applications - pulleys and such - that would wrap a 7" diameter wheel. It took all of the torque that two of us could apply without slipping. At the very high end, I did use the sandpaper trick.

Still don't have the damn rotor off - even tried an air wrench - but at least I have a working rotor holder. Since the starter clutch problem is intermittent, I'm tempted to just say screw it and live with the problem. Of course, that would be wrong, so I'll keep at it.

Anyway, thanks for the help.

1980 Kawasaki KZ440B (brand new eBaby)
1998 Ducati 900S (gone)
1978 BMW R100S (gone, damn it)
1975 Yamaha RD350 cafe (gone)
1986 Yamaha XJ650 Seca (gone)
1981 Kawasaki KZ440LTD (gone)
1969 HD Sportster (gone :)
1966 Honda CB160 (gone, damn it)
1965 Suzuki 80

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15 May 2012 13:58 #522511 by Kidkawie
Replied by Kidkawie on topic Jerry Rigged Rotor Holders: Strap Wrench?
Are you trying to lock the engine?

Many ways to do that.

1975 Z1 900
1994 KX250 Supermoto
2004 KX125

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16 May 2012 11:11 #522674 by mwriders
Replied by mwriders on topic Jerry Rigged Rotor Holders: Strap Wrench?

Kidkawie wrote: Are you trying to lock the engine?

Many ways to do that.


No. Using the strap wrench I can lock it up just fine. I just haven't been able to get enough torque on the rotor puller to budge the thing. I think that I may just need a bigger friend.

1980 Kawasaki KZ440B (brand new eBaby)
1998 Ducati 900S (gone)
1978 BMW R100S (gone, damn it)
1975 Yamaha RD350 cafe (gone)
1986 Yamaha XJ650 Seca (gone)
1981 Kawasaki KZ440LTD (gone)
1969 HD Sportster (gone :)
1966 Honda CB160 (gone, damn it)
1965 Suzuki 80

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