I have a 1989 3.6 L XJS. It developed a problem of swerving to the right on Braking and I have located the fault as the Teves MK111 ABS fluid distributor block. There is no fluid coming out of one leg of the block and one of the solenoids does not click when 12v applied, the other 5 do. I have read all of the threads re cleaniing and rewiring the solenoids and am prepared to do it, however I have been told that the XJ6 has an almost identical set up and can be used to repair the XJS unit. The ABS block cover plate is evidently thicker than on the XJS and can be changed to the thinner one. This would enable me to refurbish an XJ6 unit and replace into the XJS. BUT a) is the unit on the XJS able to be used on the XJS? b) why is the cover plate a different thickness? c) anyone ever done this swop?

 

Hi maccasa

I've done the swap you mentioned and not bothered to change the Plate, because I felt it was better to leave it undisturbed in case something fell out, where apart from having to pull the Brake Pipes back about 1/4 of an inch (just using fingers) everything worked fine without any problems

Though should you decide to rewire your existing one, that could be very handy to keep as a Spare please get a professional radio shop to do the rewire and the Soldering for you, as if you happen to get a dry joint or a Wire come off

It almost goes without saying that this could be 'game over'

 

maccassa,

I have a brand new XJ6 unit and when the day comes for me to replace it on my XJS, like OB, I will leave it intact. I don't think there's any functional difference at all between the units.

Cheers

Paul

 

1989 3.6L XJS.
Gentlemen I am still having problems with the ABS unit on the car. I still have the code 21 showing after installing the XJ6 ABS unit, but am putting this on hold whilst I try to repair the old ABS unit I took out of the XJS.
I have tested it and after removing all six solenoids and unsoldering them I have applied 12v to each solenoid - one of them does not click and although it gives a coil resistance of approx 5-6 ohms, it appears to be STUCK. This one is on the bank of 3 next to the 7pin plug unit and has the filter section in the base but no other fluid hole as the top bank. Anyone know how to free these up? Is there some magic fluid I can use to soak it in? Ive tried U/S cleaning.
Other than that anyone know if they can be repaired or has access to supply of a replacement. None of the usual jag spares can offer me one.

I can take the replacement ABS unit out and take a solenoid out of that but will use that as a last resort.

cheers maccasa
2011 3L XFS
1968 Lotus elan + 2

 

maccasa,

Don't know if it helps but another forum member had a similar problem. Here is his approach from an earlier thread:

I also bought a cheap $40 ultrasonic cleaner off amazon and ran the valves through it many times in different chemicals. Brake cleaner, carb and choke cleaner and isopropyl alcohol.
did seem to clean them a bit but not to where 12 volts would get my valves to click. Lucky my brother is a heavy machinery mechanic and has to work with what's available in the field so a bit of a problem solver if you will. He recommended putting them on a wood bench with a wood block in between and beating it with a hammer to loosen the solenoid. This had a positive effect, but the stuck valves would only click once. even after several attempts.
So my next step was to take my air chisel minus the chisel and hit the back of the valves. this seemed to break them loose and now I have working valves/ solenoids!

Good luck

Paul