:54 AM
To: Quantum Owners Group
Subject: Re: [Quantum Owners] Brakes, jumping to concusions and maths
I've now fitted a 19mm bore master cylinder from on Citroen Saxo and a servo
from a Mondeo, adjusted sevo to m/cylinder gap and eliminated as much play from
linkage as I am able. Brake ble
x27; it went
> to the group. I'll try again - apologies if I've done it again.
>
> I was querying Bills calculations above (or below - I don't know) because
> even though the pistons are opposed you still need to use the full volume
> of the slave cylinders.
>
he pistons are opposed you still need to use the full volume of the
slave cylinders.
Tom
On Monday, 27 July 2020 15:21:27 UTC+1, Jim Hearne wrote:
Hi Toms,
Whose maths are you querying ?
Jim From: Tom Walker Sent: Monday, July 27, 2020 3:12 PMTo:
quantumowners@googlegroups.com Subject: Re: [Quantu
need to use the full volume
of the slave cylinders.
Tom
On Monday, 27 July 2020 15:21:27 UTC+1, Jim Hearne wrote:
>
> Hi Toms,
> Whose maths are you querying ?
>
> Jim
>
> *From:* Tom Walker
> *Sent:* Monday, July 27, 2020 3:12 PM
> *To:* quantumowners@googlegr
Hi Toms,
Whose maths are you querying ?
Jim
From: Tom Walker
Sent: Monday, July 27, 2020 3:12 PM
To: quantumowners@googlegroups.com
Subject: Re: [Quantum Owners] Brakes, jumping to conclusions and maths
Are you sure about the maths there? With the 4-pots you've got a total 3060mm
master cylinder via the servo
> then when the brakes get hot the expanding brake fluid has no where to go
> and gradually holds the brakes on, BTDT
>
> Jim
>
>
> *From:* russ price
> *Sent:* Monday, July 27, 2020 9:18 AM
> *To:* Quantum Owners Group
> *Subject:* Re: [Quantum O
go and
gradually holds the brakes on, BTDT
Jim
From: russ price
Sent: Monday, July 27, 2020 9:18 AM
To: Quantum Owners Group
Subject: Re: [Quantum Owners] Brakes, jumping to conclusions and maths
Thanks Bill your reply certainly does help. I have fitted braided braided lines
but the linkage
Thanks Bill your reply certainly does help. I have fitted braided braided
lines but the linkage could do with a bit work. So all i need to do now is
find a servo + mastercylinder the same dimensions or as close to the Fiesta
items as possible, there is plenty of room and fabrication of the servo
Hi Russ
I hope these comments will be useful:
Your standard setup: Caliper piston area 2 x 1810mm2 = 3620mm2
Hi-Spec setup: Pair of twin piston calipers (a pair of opposing pistons exerts
the same clamping force as a sliding caliper with a single piston)
4 x 765mm2 = 3060mm2
Difference =
After fitting Hispec 4 pot calipers and 280mm discs i thought i should do
something about a probable leak from the master cylinder, the clue being
rust and bubling paint on the servo. The trouble began when i sheared off a
stud holding the m'cylinder to the servo, no problem i thought i have a
I have every confidence in Jim's advice on these matters but could I ask
for clarification of what was meant when it was said that 'the brakes were
very soft and I was getting little braking effort from them.
Does soft mean that there was a lot of movement on the pedal?
In my experience of
Air in the system would tend to get worse and worse rather than change
randomly.
It could be the servo on the way out, if diaphram has split it can seal
sometimes better than others and cause variations in braking pressure.
If it is air in the system then i can be getting in due to a fault in
The brakes were so soft and i was barely getting anything from them. My
local garage told me that it was because there had been a brand new one put
on but not machined on properly so i had to get a new one. the brakes are
starting to feel the same again with the pressure changing randomly,
hopefull
Nothing that i can think of.
Why was it replace last time and what makes you think it's going again ?
If this is the one that cost you £350 i'd go back and make them replace it.
Jim
On 06/11/2011 16:33, shaun mcsorley wrote:
After having the brake master cylinder changed only a couple months
a
After having the brake master cylinder changed only a couple months
ago and costing fortunes, i'm pretty sure its going again? does anyone
know a possible reason that would cause the master cylinder to
continuously break?
Many Thanks
Shaun McSorley
--
You received this message because you are sub
Hi All
I've finally fitted my st150 brakes but in spite of bleeding them with an easi
bleed power unit the pedal goes down to the floor when the engine is
running,but seems solid when not. Because I did not notice that the two forward
pipes were 12mm not 10mm as on my new s1 (23.8mm) master cyli
Thanks to all for advice on brake fluid. I shall probably use DOT 4
Plus or DOT 5.1. I was confused between SYNTHETIC which will mix &
SILICON which won't.
Another problem. Does anyone know where I can obtain the seals between
the master cylinder & reservoir on my H4? Ford & factors don't do them
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