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Z1000-A1 rear brake master cylinder bleeding

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ChrisB
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Re: Z1000-A1 rear brake master cylinder bleeding

#16 PostAuthor: ChrisB » Sun Jul 07, 2019 6:43 pm

I'm having similar problems with mine (A1 rear caliper). When i pull the fluid through with my vaccuum pump, air seems to be getting in down the bleed nipple thread. Anyone know of a way of sealing the threads without blocking the oil way at the bottom? The nipple seems quite loose in the thread. Is it a case of machining a new thread?

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ADRIAN H
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Re: Z1000-A1 rear brake master cylinder bleeding

#17 PostAuthor: ADRIAN H » Mon Jul 08, 2019 11:21 am

ChrisB wrote:I'm having similar problems with mine (A1 rear caliper). When i pull the fluid through with my vaccuum pump, air seems to be getting in down the bleed nipple thread. Anyone know of a way of sealing the threads without blocking the oil way at the bottom? The nipple seems quite loose in the thread. Is it a case of machining a new thread?


New nipple maybe ?
adrianhorsfield@live.co.uk
Sunny Bournemouth. Dorset. UK.

ChrisB
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Re: Z1000-A1 rear brake master cylinder bleeding

#18 PostAuthor: ChrisB » Mon Jul 08, 2019 6:30 pm

I've stumped up for a new seal set which includes a new nipple. I'll give them a service and see if the new nipple is tighter. Are these calipers usually ok to bleed?

Bill P
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Re: Z1000-A1 rear brake master cylinder bleeding

#19 PostAuthor: Bill P » Mon Jul 08, 2019 6:39 pm

I usually tie in the front brake leaver over night to cure the spongy brake feeling
and its worked everytime up to now and ive done a few :)

kev edwards
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Re: Z1000-A1 rear brake master cylinder bleeding

#20 PostAuthor: kev edwards » Mon Jul 08, 2019 7:27 pm

A couple of twists of ptfe tape on the nipple thread stops air getting in, my dad taught me this in the late Seventies and i never have a problem with bleeding.

ChrisB
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Re: Z1000-A1 rear brake master cylinder bleeding

#21 PostAuthor: ChrisB » Tue Jul 09, 2019 2:47 pm

love the ptfe idea kev. Just plumbed an entire central heating system and used yards of it but it STILL didn't occur to me!


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