[Shotimes] re: Rear proportioning valve??

[Carl Prochilo]

Jack,  On the 90 through 95 SHOs, there is general consensus that the
proportioning valve is unnecessary and is a backup system at best to
the 4 wheel ABS we have.  Also consider that with the 96 fronts,
you've already increased the braking bias significantly to the front
and moreso if you put better pads up there.  Assuming your ABS is
functional, bypass the whole proportioning valve by buying some plugs
sold be people out there like SHONut and Kirk.  This will ensure that
the rear brakes are doing their best to help the cause.
-- 
Cheers,
Carl Prochilo
92 Ultra Red Crimson

On Mon, October 3, 2005 10:44, Jack Dalzotto said:
> Thanks Zach.
>
> Mine has 96 fronts, I think I'll just leave the valve as it, the way I
> have it I believe it's just functioning as a junction block.  I get
> great flow to the rears when I'm bleeding them, seems to be no
> restriction.
>
> Stops like normal too, I was playing a little this morning.  :)
>
> It's settled, it's staying as is, plumbed but not connected.
>
> Jack
>
>
>
> Zach Leahy wrote:
>
>> Jack,
>>
>> It is supposed to close the pin valves as the suspension inthe rear
>> is
>> unloaded.  I as well had to replace my fuel lines, where they go
>> over
>> the gas tank they were a mess.   I got some standard line and
>> spliced
>> it under the driver's door and ran the lines to a connecto block I
>> made. I used the connector block instead of the porportioning valve
>> and then mad eand connected new lines to each rear wheel.
>>
>> Works great, but I have the 96 size front brakes too.  Cna't
>> garantee
>> how it would work on a stock braked sho.  My recommendation is to
>> remove the vave and just connect the lines together w/o it.
>>
>> Z
>>
>>
>> On 10/1/05, *Jack Dalzotto* <dalzotto@mosaiccomputers.com
>> <mailto:dalzotto@mosaiccomputers.com>> wrote:
>>
>>     Hi All,
>>
>>     Just got done replacing both brake lines running from the front
>> to the
>>     proportioning valve in the rear.  10 years in Michigan really
>> took
>>     it's
>>     toll on the lines.  Yesterday morning I slammed the brakes real
>>     hard to
>>     avoid a deer, ABS kicked in and a few seconds later the pedal
>> went to
>>     the floor.  I had basically no brakes.  Upon investigation one
>> of the
>>     rusty lines gave way, fluid was gushing out!
>>
>>     Replacing the lines went simple enough, everything seems to be
>> working
>>     fine and leak free.
>>
>>     Question about the proportioning valve.  It's connected to the
>> rear
>>     suspension arm.  The way mine was connected it didn't really
>> look like
>>     it would do much of anything, I'm not sure how it's supposed to
>>     look but
>>     mine was really rusty and looks like it may have pulled through
>> the
>>     mount.  The rod was really loose, i couldn't see how it would
>> activate
>>     the valve.
>>
>>     So, I left the rod off when I reassembled.  Not sure though if
>>     this is a
>>     good thing to do but, not knowing how it is supposed to
>> function, I
>>     didn't know how to reattach the rod.
>>
>>     Can anyone comment on what the purpose of this valve is, how it
>> is
>>     supposed to attach to the suspension arm and how do I adjust it?
>>
>>     I see no ill iffects right now with it being disconnected, to me
>>     braking
>>     is normal.  That;s not to say it hasn't been messed up for a
>> long time
>>     and I'm just used to incorrect braking!
>>
>>     Thanks!
>>     Jack
>>     95 ATX, stops again.
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