SOHC.co.uk Forums > CB350/400

Play in brake lever

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Mikep328:
I have maybe 12-15mm of play in the brake lever before it contacts the master cylinder piston.  As I have mentioned in my post re the brakes, they are quite good now - no issues at all with their function/performance.  But that lever play does not seem correct.

I have read a post where an individual filed down the brake lever where it bears against the piston so as to be able to apply more hand pressure and I'm wondering if that was done one this bike which might have some affect on play.  If it was filed nicely, I'm not sure if I'll be able to tell by removing/looking at the lever.  ::)

ALSO...I see in the parts diagram for the 400, item 365 that looks like some sort of rod or tube that fits in the master cylinder lever assembly.  It looks like it might bear upon the lever in some way.  Is that related to any lever play?

Nurse Julie:
Yes, that's the anti rattle bush.

Mikep328:
AHA!  I'm pretty sure that item is not present based on a casual inspection of the master cylinder when I was doing the brake work. but I'll check to be sure.

taysidedragon:
How much play do you have in the lever pivot? Any wear in the pivot bolt or lever will make the situation worse.

Multiman:
Mine (part 365) had reverted to a pile of rust so I made another from some 6mm steel rod.
Very simple to make.

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