[TR] TR6 Brake Bleeding

Tony Childs tochilds at bellsouth.net
Sat Jul 16 15:08:14 MDT 2011


If you think about it, it actually pretty ingenious.  The (front) chamber
for the rear brakes is smaller and it does get filled from the "overflow" of
filling the rear chamber.  The rear brakes are drum brakes and have to be
manually adjusted as they wear.  The rear wheel cylinders don't hold much
fluid and move very little even when adjustment is needed, so the chamber in
the master cylinder doesn't need to be very large.  The front brakes, being
disc brakes, basically adjust themselves as the pads wear so it takes more
fluid to fill the pistons in the calipers as this wear happens and it isn't
drawn away from the rear chamber.  Therefore, you need the larger chamber
for the front brake circuit.  The design assures that when you fill the
larger chamber for the front brakes, you will always have rear brakes!

Tony Childs
Anderson, SC

1972 Spitfire MKIV
FK38809UO

 

-----Original Message-----
From: triumphs-bounces at autox.team.net
[mailto:triumphs-bounces at autox.team.net] On Behalf Of Alex Cherington
Sent: Saturday, July 16, 2011 8:27 AM
To: triumphs at autox.team.net
Subject: Re: [TR] TR6 Brake Bleeding

Thanks for the replies. It looked like that was the case but the aperture
for
filling the front chamber looks way too small to easily get fluid into. Not
the 
best of designs.


 


----- Original Message ----
From: Bob Danielson
<75tr6 at tr6.danielsonfamily.org>
To: Alex Cherington
<a_flying_scotsman at yahoo.com>; triumphs at autox.team.net
Sent: Sat, 16 July,
2011 13:23:41
Subject: Re: [TR] TR6 Brake Bleeding

The fluid goes into both
chambers. The small front one is for the rear brakes 
and the large rear one
is for the front brakes. Bleed them in order of distance: 
RR, LR, RF, LF

Bob
Bob Danielson
http://tr6.danielsonfamily.org
1975 TR6 with:
Throttle Body
Injection
Toyota 5 Speed
Nissan Diff & CVJs

-----Original Message----- From:
Alex Cherington
Sent: Saturday, July 16, 2011 7:49 AM
To:
triumphs at autox.team.net
Subject: [TR] TR6 Brake Bleeding

My car is an ex US
LHD May 1976 model. I have replaced my front pipes and
calipers and want to
bleed the brakes. With the cap off there appears to be 2
chambers as there is
a piece of plastic across the reservoir.

So does  fluid
go into the larger
chamber or does fluid go in to the  very small
opening at
the front too???


I
am more used to the single system master cylinder as on
my Mk3 Spitfire.
Thanks


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