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Old June 27th, 2019, 03:40 PM   #4
nocturncal
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Name: Cal
Location: San Francisco
Join Date: Jun 2017

Motorcycle(s): '09 Ninja 250R

Posts: 180
Quote:
Originally Posted by DannoXYZ View Post
Are you sure it's leaking from bleeder screw?

Clean caliper off completely with brake cleaner so it's dry.
Then squeeze lever while looking closely at caliper to see where new fluid appears.

You may have gotten some grit in between end of bleeder screw and csliper, preventing it from sealing. Remove bleeder screw completely and inspect tapered seating surfaces on both surfaces.

Did you use new banjo-bolt copper crush washers when installing new lines?
I've seen some of these kits come with steel washers which will not seal.
I was thinking it was leaking from the bleeder screw because after tightening the screw, I'd hook up a tube to the screw that had a little fluid inside it, squeeze the brake, and I could see fluid slowly moving out of the caliper into the tube.

The all balls kit came with copper washers. I put 2 new washers on, one on each side of the brake line bolt hole and tightened to 49 in lbs

In any case I'll reclean and rebuild the calipers again and check back in.
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