RE: 4whl disc proportioning?

[Brian Honnold <bhonnold@pac-cap.com>]

All 16V Sciroccos have two brake proportioning valves.  They are screwed 
directly into the master cylinder in line with the rear brake lines. 
 Anytime a car with rear drums is converted to disks and you change to to 
the larger M/C and brake booster you need these valves.

I have heard of some (on the list maybe) who have added the rear disks and 
not upgraded the fronts who have been able to skip the proportioning 
valves.  I believe that this is due to the internal proportioning of the 
older M/C.

HTH

Brian Honnold
'78 Rocco Ragtop (10.1 front, rear disks, 22mm M/C)

On Monday, August 03, 1998 4:55 PM, POTATO! [SMTP:theforce@invasion.com] 
wrote:
>
> ok...i've been told a coupld different things by different
> sources....here's my question
>
> how is the proportioning for 4 wheel discs on a 16v scirocco acomplished?
>
> i've been told that the bigger master cylinder has built in
> proportioning...seems unlikely, but who knows?
>
> but, my car(87 16v)  has no proportioning valves that i have been able to
> locate.....
>
> autotech claims to sell proportioning valves that are meant for 4 wheel
> disc conversions....but the tech i spoke to was unable to tell me (or
> didnt want to ) if they were ones that the 16v scirocco may have
> all he said was that the ones they sold for a rabbit "would allow my car
> to function with rear discs"....well, i want a little better answer than
> that...;)...
>
> so if anyone has a definitive anser to this question, please let me
> know...and if you knwo of a place on the web or somewhere in print where 
i
> could read it, please pass that on also....
>
> also, i am looking for a metric "T" brake fitting, in the hopes of simply
> installing the old brake light sensor, instead of having to put in a
> switch in the pedal cluster....i tried napa (they are the only people who
> have been able to find any type of brake splicing connectors). but they
> only seem to be able to find one for american cars.....
>
> any help would be appreciated
> thanks
> Dave
>
>
>
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