SOHC.co.uk Forums > CB350/400

Rotor removal tool

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heliwilly:
Hi,
I'm trying to find the correct size of thread for a 77 CB400 rotor puller. Apparently the 16mm for the CB550 doesn't fit. Thanks Bill W.

Sprocket:
I was considering this the other day actually. I have a crank with one still attached, I will be taking it to my local hardware supplier tomorrow to ask them to try a bunch of screws in, when I get the right one I'll let you know.

You just grease it up and wind it in, right, same as a bicycle crank extraction?

heliwilly:
That's the problem. If you look on the internet it gives various sizes, 16mm 18mm and 20 mm. Short of buying them all, how can I find the correct one for my brothers 1977 CB400,
Does anyone have the correct answer? Thanks Bill.

Nurse Julie:

--- Quote from: heliwilly on May 10, 2019, 09:15:55 AM ---That's the problem. If you look on the internet it gives various sizes, 16mm 18mm and 20 mm. Short of buying them all, how can I find the correct one for my brothers 1977 CB400,
Does anyone have the correct answer? Thanks Bill.

--- End quote ---
18mm x 1.5 pitch

matthewmosse:
Might be an idea to buy a cheap vernier caliper and set of thread gauges. I find mine invaluable, so much so I now have more than 1 set of each. Often a set of thread gauges is included in a tap and die set. Really useful on matric machinery and pretty well essential if you get anything British and old or Ammerican. The joys of a 196s British vehicle, whitworth,  unf, unc, bsp, etc etc.get on those and it's a real headache.

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