tegwin
|
| posted on 12/3/08 at 08:50 PM |
|
|
SIerra brake inertia valve...which way?
Does anyone know which way around the sierra inertia brake valve is supposed to go?
Which is the inlet from the MC, and which is the oulet to the rear brakes?
And which ends needs to face fowards?
------------------------------------------------------------------------------------------------------------------------
Would the last person who leaves the country please switch off the lights and close the door!
www.verticalhorizonsmedia.tv
|
|
|
|
|
RichardK
|
| posted on 12/3/08 at 09:07 PM |
|
|
Does this help, the pipe nearest the block goes through the tunnel to the rear where it's tee'd off. The other goes down to the MC
Regards
Rich
[Edited on 12/3/08 by RichardK]
Gallery updated 11/01/2011
|
|
|
stevec
|
| posted on 12/3/08 at 09:13 PM |
|
|
Bin it, You dont need it.
Steve.
|
|
|
Mark Allanson
|
| posted on 12/3/08 at 09:15 PM |
|
|
quote:
Originally posted by stevec
Bin it, You dont need it.
Steve.
I'll second that
If you can keep you head, whilst all others around you are losing theirs, you are not fully aware of the situation
|
|
|
graememk
|
| posted on 12/3/08 at 09:43 PM |
|
|
i havent got one
|
|
|
onzarob
|
| posted on 12/3/08 at 09:56 PM |
|
|
what does it do :confused:
|
|
|
tegwin
|
| posted on 12/3/08 at 10:11 PM |
|
|
Its getting fitted to help me pass the SVA!
Enough said!
Chears for the photo, does the job
------------------------------------------------------------------------------------------------------------------------
Would the last person who leaves the country please switch off the lights and close the door!
www.verticalhorizonsmedia.tv
|
|
|
whitestu
|
| posted on 12/3/08 at 10:11 PM |
|
|
Agreed - bin it.
It's supposed to limit brake pressure to the rear under braking to stop the rears locking.
stu
|
|
|
donut
|
| posted on 12/3/08 at 10:23 PM |
|
|
If you have a proper sierra master cylinder then you don't need it.
Andy
When I die, I want to go peacefully like my Grandfather did, in his sleep -- not screaming, like the passengers in his car.
http://www.flickr.com/photos/andywest1/
|
|
|
indykid
|
| posted on 12/3/08 at 10:59 PM |
|
|
quote:
Originally posted by tegwin
Its getting fitted to help me pass the SVA!
Enough said!
Chears for the photo, does the job
IT WILL DO NOTHING TO HELP YOU PASS SVA!
it's an inertia valve. it's a dynamic proportioning valve for when the car is moving. the sva test is a static test, so you will still get
full pressure to the rear brakes.
tom
|
|
|
matt_claydon
|
| posted on 13/3/08 at 02:30 AM |
|
|
^^^^ Spot on.
I understand it also works partially due to the dive of the vehicle under braking. i.e, the more the back lifts, the less line pressure to the rear. A
seven will hardly dive during braking.
|
|
|
zzr1100rick2
|
| posted on 13/3/08 at 07:27 AM |
|
|
as i understand it if it is fitted mr sva only does a moving test of the brakes to measure front to rear ballance due to it been an inertia device
|
|
|
britishtrident
|
| posted on 13/3/08 at 07:32 AM |
|
|
quote:
Originally posted by matt_claydon
^^^^ Spot on.
I understand it also works partially due to the dive of the vehicle under braking. i.e, the more the back lifts, the less line pressure to the rear. A
seven will hardly dive during braking.
Only a tiny ammount of its action is due to dive it is as indykid pointed out a G valve it works on decelleration (and hence won't do anything
in a roller test).
The gubbins inside the Girling G valve is very simple, just a ball bearing that rolls forward (up a slope) under braking, when it reaches the end
stop it closes the port to the rear brakes, brilliant very simple and very reliable but not much use on a Locost or for passing SVA.
First application I encoutered this type of valve on was the Austin 1800 Landcrab.
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
|
|
|
James
|
| posted on 15/3/08 at 04:18 PM |
|
|
Bit in!
Get a Fiat Uno adjustable one for £20 new.
HTH,
James
------------------------------------------------------------------------------------------------------------
"The fight is won or lost far away from witnesses, behind the lines, in the gym and out there on the road, long before I dance under those lights."
- Muhammad Ali
|
|
|
bob
|
| posted on 15/3/08 at 04:30 PM |
|
|
I wouldnt even bother with the adjustable valve, i fitted the fiat type as james pointed out but left it wide open for SVA and it passed like that.
I thought i would need it with the rear discs but plenty others have gone through the test without.
|
|
|
