tr
|
| posted on 5/2/05 at 06:41 PM |
|
|
Brake Thingy
Just trying to sort my brakes out properly and I've found this bit that needs plugging into the rear circuit somewhere. I've forgotton
it's name, but I know it's used to stop the back wheels locking. I hearby declare it named a brake thingy.
Anyway, does anyone know which way round it should go?
Does the master cylinder go at A and the slaves at B or is it t'other way round?
Does it need to be mounted in any particular orientation? It would fit best horizontally...
Cheers Lads.
tr
[Edited on 5/2/05 by tr]
|
|
|
|
|
theconrodkid
|
| posted on 5/2/05 at 06:50 PM |
|
|
its a decel valve,opinion is it wont work on a 7,if you do need a valve(some do,some dont)use an adjustabubble one from a fiat uno
who cares who wins
pass the pork pies
|
|
|
Avoneer
|
| posted on 5/2/05 at 06:52 PM |
|
|
If you are using drums on the back and discs on the front, you will not need it.
Pat...
No trees were killed in the sending of this message.
However a large number of electrons were terribly inconvenienced.
|
|
|
tr
|
| posted on 5/2/05 at 07:04 PM |
|
|
quote:
Originally posted by Avoneer
If you are using drums on the back and discs on the front, you will not need it.
Pat...
Excellent news!
Is there any reason it won't work/ isn't needed in a 7?
Cheers
|
|
|
Northy
|
| posted on 5/2/05 at 07:12 PM |
|
|
It relies on the front of the car dipping under braking to move the ball bearing in it to the front to reduce pressure.
A Locost doesn't wollow about like a large Sierra.
Cheers
Graham
Website under construction. Help greatfully received as I don't really know what I'm doing! 
"If a man says something in the woods and there are no women there, is he still wrong?"
Built 2L 8 Valve Vx Powered Avon
|
|
|
tr
|
| posted on 5/2/05 at 07:20 PM |
|
|
Genius!
That'll explain why it rattles too.
Question answered and still time to go to the pub! 
Thanks!
tr
|
|
|
JoelP
|
| posted on 5/2/05 at 07:27 PM |
|
|
hence the mounting angle is also important. as said, stuff it and follow the crowd, uno bias valves are in commom use.
|
|
|
britishtrident
|
| posted on 5/2/05 at 07:41 PM |
|
|
quote:
Originally posted by Northy
It relies on the front of the car dipping under braking to move the ball bearing in it to the front to reduce pressure.
A Locost doesn't wollow about like a large Sierra.
Cheers
Its a G valve the main thing that makes it work is deceleration "G" force so set at the correct angle it will work in any car it just
isn't needed in a 7.
[Edited on 5/2/05 by britishtrident]
|
|
|
Dick Axtell
|
| posted on 6/2/05 at 11:11 AM |
|
|
Damned 'G' valve
Guys,
One more time - BIN IT!!
Please do not use this valve. Its not suitable for 7-type vehicles. Plus, you need to establish the necessary decel level, and this requires
considerable instrumentation, decel sensors, suitable data logger, and weeks of test work.
For those of an iquiring mind, here's the theory of how this valve works - allegedly!!
 
Rescued attachment G_Valve02.jpg
Work-in-Progress: Changed to Zetec + T9. Still trying!!
|
|
|
tom_loughlin
|
| posted on 6/2/05 at 12:22 PM |
|
|
ive put one on my car - i have discs all round - if you guys all suggest binning it, whats the best alternative?
tom
|
|
|
greggors84
|
| posted on 6/2/05 at 01:05 PM |
|
|
Alot of people use fiat uno adjustable ones. Search for a thread on them as im not sure what unos they come off.
Ive used a wilwood adjustable one, picked it up second hand so wasnt that expensive.
Chris
The Magnificent 7!
|
|
|
Liam
|
| posted on 6/2/05 at 01:53 PM |
|
|
I'm coming up to having to work out my master cylinder sizes and getting some. I've got discs all round but have a balance bar in the
pedal and will be able to choose whatever master cylinder sizes will be correct (once I work out how). Is it still a good idea to have a decel valve
in the rear circuit with this kind of setup?
Cheers
Liam
|
|
|
Peteff
|
| posted on 6/2/05 at 04:15 PM |
|
|
Not really.
Kind of defeats the object of having a bias pedal box and setting it up.
yours, Pete
I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.
|
|
|
tr
|
| posted on 6/2/05 at 07:29 PM |
|
|
Blimey, didn't mean to start an argument!
Said item has been binned now. I'm going to try it without for now and see how it looks once it's running. (One day)
|
|
|
britishtrident
|
| posted on 6/2/05 at 09:01 PM |
|
|
Fit a Fiat valve it is simpler to set up.
The Girling G valve isn't that hard to set no harder than anyother brake presure regulating system (try setting up the Teves load sensing valve
Chrysler UK used in the 70s) BUT it isn't SVA friendly the Fiat Uno one is and its cheap.
If you do a search you will post showing the bracket and adjustment mech you will also find some stuff I wrote up on who to get the correct setting
-- do the road testing this carefully starting from a front bias.
For safety Front brakes should always lock first in all conditions.
|
|
|
britishtrident
|
| posted on 6/2/05 at 09:07 PM |
|
|
quote:
Originally posted by Liam
I'm coming up to having to work out my master cylinder sizes and getting some. I've got discs all round but have a balance bar in the
pedal and will be able to choose whatever master cylinder sizes will be correct (once I work out how). Is it still a good idea to have a decel valve
in the rear circuit with this kind of setup?
Cheers
Liam
Not really --- just make sure you know how to set up the bias bar --- and make sure the side clearance is set to 0.025" (0.4mm) to ensure
you still have brakes on one circuit if the other fails.
Bias pedal boxes are designed around 0.7" and 0.625" dia master cylinders --- generally 0.7" are better bet for disc system to
avoid excessive pedal travel.
One thing about bias bars and cut off valve once you get them set don't twiddle ven for racing the difference between wet and dry settings is
usually either 0.5 or 1 turn wet needs more bias towards the rear.
[Edited on 6/2/05 by britishtrident]
|
|
|
%20(WinCE).JPG)
