Suzuki Club UK

Hey guys, just done a basic brake over haul, new brake cylinders, shoes etc. But in the process i came across a random brake thing that im not sure what it does nor can i find anything out about it. Basically if you follow the brake lines from the master cylinder, 2 lines run off to each of the front brakes and a single line runs off to the rear wheels, however half way down the rear brake line there is a single brake cylinder/reservoir/something im not sure of. Can anyone tell me a. what it is, and b.whats it for? it has a single line in, and a single line out so as far as im concerned its borderline pointless....?!

Umm can't see what ur on about with all that mud there

Ye mine has that not sure what's the purpose of it
Mine looks a lot cleaner than urs

Some kind of bias valve/compensator type thingy i believe.

im with jordi, looks like the load valve bud

It's the D.S.P Valve

























What ever the hell that is

Darrell wrote:It's the D.S.P Valve

























What ever the hell that is

Digital Signal Processor using valves which give excellent sound quality hence why a lot of companies have started using them again. Wouldn't want one under a muddy SJ tho

ROBBIE wrote:

Darrell wrote:It's the D.S.P Valve

























What ever the hell that is

Digital Signal Processor

Digital. I dunno Robbie. If its digital mine is definately broken.

Well I had to find out what it is, so
It's basically a valve to stop the rear end from locking up under heavy braking.
As far as I can find out its fitted to some sj410's and the LWB sj413.
Its a "Deceleration Sensing Proportioning Valve"
If your sad enough like me and want to know more http://www.google.co.uk/patents/US4194792

In leyman's terms: It's like a REAAALLY primitive ABS for the rear axle.

In Yeller-belly: It's a fing whot keeps yer back whirlies from stoppin' when yer slam yer anchors on.

Important that when bleeding the rear brakes that you bleed this valve also - if you clean it up I'm sure you will find that it has a bleed valve. Be extremely careful when undoing the bleed valve as it is pretty weak and it will be corroded in - from memory it's an 8 mm spanner size. I had to completely remove mine and apply some "scientific" heat to to the bleed valve to undo it and even I nearly snapped it off. The problem with heating it is that the valve inner components have rubber seals which can be destroyed using a blow torch - I stripped the innards out before heating it and it's just as well I did as it was siezed solid.