SOHC.co.uk Forums > CB500/550

cb550f brake drum problems.

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mat4:
Hello, I have a 1979 cb550f and have noticed that the rear brake drum steel liner has warped and cracked, I am told this is quite a common problem and happens when the alloy corodes beneath the steel liner causing it to warp,  I am finding it hard to find someone who can re line the drum, any one had similar problems? any ideas? thanks.

SteveD CB500K0:
It's a very common problem. There are at least two members here who can reline brake drums.

Where are you?

SteveD CB500K0:
Matthewmosse seems like a good bet.

http://www.honda-sohc.co.uk/forum/index.php?topic=1719.0

matthewmosse:
If you have a lathe then have a go. For small lathes like mine you'll need to strip the rim and spokes off the wheel. There are probably specialist suppliers for linings but I've found rover mini drums can be adapted to fit. Try ebay for a good wheel, comstars from a cb650 will fit no problems. Some people have fitted yamaha xs250/400 rear wheels which should be easy to source, scrappies by me has a few. If there's no luck I might consider a px of you're cracked hub for one I've already re lined. I'm not a trained engineer though, (only trained for welding, blacksmithing and care working) only fair I say this up front. I'm using one I re lined in my 500/4 sidecar outfit and it does to work ok. I also have a sound wheel with a 16" rim and tyre which just fits but is really too close to brake torqe arm. I've no idea if the spare hub I re lined is off a cb 550 or 500 as I've both bikes around and they are interchangeable but I think there are cosmetic differences. Also some backplates don't seem to fit other wheels so try to keep them as a set.

SteveD CB500K0:
I've asked Bryan Jones for his contact.

Watch this space.

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