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-   -   Wanted - Brake Pressure Reducing Valve (http://www.haynes.co.uk/forums/showthread.php?t=7169)

Matthew 24th September 2011 07:27 AM

Wanted - Brake Pressure Reducing Valve
 
Hi

Has anyone got one of the standard brake pressure reducing valves they don't want?

I've got discs all around and need something to reduce the rear line pressure.

Thanks
Matt

flyerncle 24th September 2011 09:13 AM

Scrappy,vauxhall corsa and most fords have them either in the cylinder or at the rear pipes.

Matthew 24th September 2011 10:52 AM

Are they the straight pressure reducing valves, or the deceleration sensitive ones?

rapidtornado 24th September 2011 03:22 PM

try get one off MK2 fiesta, there's a link on locostbuilders, that's what I've bought cost me a tenner bolts straight into master cylinder... don't know if it will work but it's been used a lot on robin hood set-ups with discs all round

flyerncle 25th September 2011 11:30 AM

Late reply,pressure reducing personally I would avoid anything speed sensitive as it would be for a larger heavier car and possibly a problem.

Trophy Blue 25th September 2011 01:23 PM

Fiat Uno ones are available from factors very cheaply, they can be made adjustable very easily, made unadjustable for IVA, and then returned to the original state!

kj71 25th September 2011 02:09 PM

If its the ford sierra deceleration valve i have one you can have.

Matthew 25th September 2011 06:41 PM

Quote:

Originally Posted by kj71 (Post 65504)
If its the ford sierra deceleration valve i have one you can have.

Thanks. I've PM'd you with my contact details - let me know what you want for it.

Matt

Matthew 25th September 2011 06:53 PM

Quote:

Originally Posted by Trophy Blue (Post 65500)
Fiat Uno ones are available from factors very cheaply, they can be made adjustable very easily, made unadjustable for IVA, and then returned to the original state!

I bought one of those (from Brakeparts, part #HRV1013), but I can't work out what I would need to do to make it work correctly - do you have the details?

That's why I was looking for the standard Sierra one - as far as I can tell it just shuts off the rear brakes when the decelleration reaches a certain rate. It may not be optimal, but seems from comments that as long as it is mounted identically to the Sierra then it is enough to pass the IVA.

Matt

flyerncle 26th September 2011 12:02 PM

Roller brake tester does not take into account deceleration only brake effort/force so could cause a fail at test/IVA.


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