Hi! Frans.
If you are filling oil from the bottom,(that is with the bleed (filling)
nipple at the bottom, as you say air rises so there will not be a pocket of
it in the slave cylinder top, you will expel all the air out of the master
cylinder. If the bleed nipple is at the top of the slave cylinder and you
are trying to expel air downwards and back to the master cylinder it won't
oblige!
You are actually NOT using it as a "bleed" nipple in this application you
are using it as a filling nipple to expel the air upwards and to the master
cylinder.
Hope you understand? Exasperating isn't it ?
Regards
Bob Harrison G-PTAG
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of Frans Veldman
Sent: 12 October 2009 20:47
Subject: Re: Europa-List: Tri-gear Jamar brakes
Robert C Harrison wrote:
<ptag.dev@tiscali.co.uk>
Hi Robert,
> However, have you realized that the bleed nipple at the brake end needs to
> be on the bottom of the slave cylinder and the pipe connection to the
master
> cylinders need to be on the top?
Why would that be?
According to the manual, the bleed nipple should point forward (which
happens to be the upper connector). I felt no suspicion doing it that
way, because air tends to rise, so it seemed logical to have the bleed
nipple on top, that way any air in the caliper will collect near the
bleed nipple. Apart from that, the brake line will then nicely follow
the leg so the brake line won't dangle into the air.
Maybe you are right that it should be the other way around, but could
you please also explain why?
Frans
|