SOHC.co.uk Forums > CB350/400

Couple of hairy moments

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Mag1:
When you rebuilt the calliper, did you replace the piston seal?. Was the piston anyway pitted or badly scored. As others have said readjust the calliper to the disc. As a precaution have you overhauled the master cylinder, maybe gummed up with dirt or seals past there best.

alfiembra:
Thanks for all the replies.

When I rebuilt the master cylinder and caliper it was a full refurb with new seals and pistons on both, I also set the gap on the fixed pad to the face of the disc as per the manual 15 thou IIRC.

I'll check the oil for particles and report back,

Thanks again.

hairygit:
The pad to disc clearance SHOULD be 6 thou, so at the moment you have more than twice what it should be.

Sent from my X6pro using Tapatalk

alfiembra:
Sorry my mistake .15mm not 15 thou

petermigreen:
Recently rebuilt a master cylinder with an aftermarket kit and brake was very spongy and could pull the lever to the bar with no problem at all could not get it to work properly despite bleeding and rebleeding. Bit the bullet and bought a genuine kit and rebuilt, brake now fine*

Peter.

*1970s fine

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