SOHC.co.uk Forums > CB750

F2 rear brake binding

<< < (2/2)

Magster:
Hi, I have cleaned it out with compressed air and am pretty sure the seals are the right way around.
The more I dig around on forums it looks like in that blocked cavity there should be a tiny return hole.
I have tried clearing it with pins and guitar strings but it is solid. Have read elswhere that I could drill it with a 0.4mm hole so I think that will be my next effort.
Thanks, Magnus.

royhall:
Your pistons will struggle to retract with that hole blocked, thats your problem. They do get blocked solid if left for a good time without use. You can clear it with a small drill bit but do it by hand not with a power drill. I usually hold the drill in a vice and gently turn the cylinder by hand. Get that clear and you should be good to go. But do it carefully as the hole is not the same diameter all the way through. It starts quite large the goes down to a tiny hole (hence not using a power drill). If you can clear the large part the small hole will poke through with guitar string wire.

Magster:
Hi , thanks for that. I have now drilled it (by hand using a pin vice) with a 0.4mm hole and have reassembled the brakes and bled the system down.
I will have to wait for a better day to get out and give it a test run again.

Thanks for all the help,

Cheers, Magnus.

Navigation

[0] Message Index

[*] Previous page