i need front proportion valves

[mattsho1993]

I took the car in for the recall needed brakes bleed... I got a call from my girls step dad the chief mechanic. He says that the lines are all rotted in the front proportion valves needs new one needs a new valve needs lines to the abs unit.... where can i find this part.

 

[rbruso]

The proportioning valve is in the back, with an arm mounted to the LCAs.

Could you take pictures of exactly which parts you're looking at?

I believe on ABS cars the lines go from MC to ABS, then to wheels (front) and proportioning valve (rear), but I tend to spend most of my time playing with the (relatively simple) '89 setup.

I have a parts '91. Anyone know if the '91 and '93 ABS systems are the same?

 

[mattsho1993]

On the master the two lines that come out of the side go into the thing i need its a black box looking thingwith lines coming in and out of it its mounted on the inner fender then two lines go from here to the rear then another goes across the fire wall the pass front tire....

 

[rbruso]

I'll take a look at my '91 parts car when I get home and see what I can see.

 

[frosho]

It's not a valve and it's not necessary. It can be bypassed with union fittings.

 

[Phoenix]

Yes its like a splitter at the front.

most of them and the lines Ive seen here , are in bad shape.

On my 2002 , that block is in 2 parts and its AWEFULLY similar to our shos. Might wanna give it a try. My 2002 has no ABS though , but like i said I bet 2$ that it fits.

 

[mattsho1993]

i talked to my girls step dad he says he'll take a look at it tomorro at work and let me know about both ideas thanks guys. Anymore ideas are great keep em coming please.

 

[rbruso]

I'll take a look at my '91 parts car when I get home and see what I can see.

So, on my '91 at least, looks like it's two lines out of the master cylinder into the accumulator, then four lines out of it. Of course, the car is a bit dirty, but doesn't sound like it's the same setup as the later cars. Sorry.

 

[mattsho1993]

are the four lines one piece of the "accumulator" or do the have fittings?

 

[rbruso]

are the four lines one piece of the "accumulator" or do the have fittings?

Hard to tell. I'll have to look at it tomorrow, as there's no light out there right now.

 

[Bob Gervais]

91 and 93 are the same.

Two lines from the master to the ABS assy, four lines out of the ABS assy that run through a "distribution block" for lack of a better term. From there, two lines go to the front wheels, and two go to the rear bias valve on the rear control arm, then from the bias valve to the rear wheels.

As Matt (frosho) mentioned, the four line distribution block at the front driver's side frame rail isn't necessary. Remove bad lines from ABS unit, remove distribution block, and plumb in new lines as needed. I'm sure the chief mechanic knows this, but NO compression unions in brake lines, flared unions only.

 

[beaudeen]

Here ya go my friend...this may help you out...
http://www.shoforum.com/showthread.php?t=99487