[Supras] ABS Actuator Unit

[Eric Boeck]

Bob,

Believe it or not, the ABS still works as it should.  It's kicked in and
modulated the brake pressure to the wheels as it should (wet roads).  The
block isn't 100%.  It's the initial braking that doesn't work, as the fluid
gets to the caliper.  Once the pads are in contact, now it's just pressure,
which transmits through the unit with no problem, and braking is straight.

And I'd rather have than not have the ABS.  We get snow here from Nov to
April, and though I don't drive it in the winter, I *may* have to if the
truck breaks down.

Eric
91T

-----Original Message-----
From: Bob Shapton [mailto:bshap at tonedeaf.com] 
Sent: Tuesday, October 23, 2007 1:56 PM
To: supras-bounces at supras.com; 'Eric Boeck'
Subject: Re: [Supras] ABS Actuator Unit

Doesn't the ABS work by alternately 'blocking' and allowing pressure to the
caliper(s)? Perhaps the abs piston that does the alternating is stuck in the
closed position. If this is an electrical solenoid would disconnecting the
power to the ABS unit have any effect?

Just a thought.
Bob

> Without looking at an ABS car would it be practical just to remove the 
> ABS and dropping the weight?
> 
> Just an idea
> 
> Bob
> 
> -----Original Message-----
> From: supras-bounces at supras.com [mailto:supras-bounces at supras.com]
> On Behalf
> Of Eric Boeck
> Sent: Monday, October 22, 2007 4:57 PM
> To: supras at supras.com
> Subject: [Supras] ABS Actuator Unit
> 
> Hey guys, I have a problem.  Somewhere in the ABS actuator of my 91T 
> is a plug that is severly hampering the flow of brake fluid to my 
> passenger front tire.  When I try to bleed the passenger front brakes, 
> it's almost like I haven't opened the bleeder.  So I removed the line 
> from the ABS actuator, and it's just as bad.  Even with that brake 
> line disconnected, the brake pedal is very stiff, and only slowly goes 
> to the floor, and only a little fluid comes out of the actuator.  
> Drivers side front bleeds normally, so I know it's not the master 
> cylinder or the line going over to the ABS unit.
>  
> This is causing my car to pull serverly to the left when I stomp the 
> brake from highway speeds.  VERY annoying!
>  
> Has anyone ever pulled this ABS actuator apart?  I've tried the usual 
> brake rebuilding places, but they don't rebuild these.  If anyone 
> knows of a place that will rebuild it, please let me know.  I do NOT 
> want to pay $2k for a new one!  (It'd be worth more than I can get for 
> the car!!!)
>  
> Thanks,
>  
> Eric
> 91T
> Toronto Area.
> 
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> 3:09 PM
>  
> 
> 
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