SOHC.co.uk Forums > CB500/550

Rotor stuck. Is there a trick?

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Oddjob:
I took 2 rotors off 2 cranks the other week so I could scrap the cranks as they were very rusty. Using the genuine Honda tool it took me less that 3 mins for each one and that included removing the bolt. No grease used, just threaded it in, tapped with a lead shot filled rubber hammer and they fell off, despite the rust.

Using the right tools makes the job so much easier and saves damaging anything. The genuine Honda tool looks like a cross, black with 4 different thread pitches on each arm so it fits multiple bikes. Not that dear to buy.

If you were close I’d pop round and remove it but of course your not, shame.

Watch you don’t lose the woodruff key when it finally comes off. Easy to do.

Bryanj:
Stop winding him up Ken, there is no key on the fours!

Sesman:
Yes, I lost both the woodruff key and it’s slot.😀

alexdecker:
Tapped it. Greased it. Tapped it some again.

I am amazed how "lightly tapping" seems to be such an integral part of motor cycle maintenancene 😂

I am using this rotor puller tool I bought of CMS. I torqued it too much it would seem. I snapped my oil filter wrench (used to stop the crank from turning) and bent the handles a bit on the tool.

Any other ideas, other than a giant vice and more muscle?

Sesman:
Alex, if you are splitting the motor, leave it on and tease it of with a block of wood and mallet later. Worked for me and no special tools required.

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