Hi Guys

A Massive Thank You to: Bladerunner@Warrjon@Greg@Sidescrollin and anyone else who chipped in

Hi Bladerunner

I plugged the Blue Plug into the Pressure Switch to put the Relay back in Circuit and I got 12 Volts out of the Plug that would normally be Plugged into the Brake Pump

So it looks as if the Electrics in the Car are OK, so all we need now is a Brake Pump (?)

I'll also put up some Photos on my 'Cherry Blossom' restoration thread, the next time I update it

Thanks again as I was right out of ideas



As soon as I Plugged the Blue Plug into the Pressure Switch I got 12 Volts (ish) out of the Plug that would Normally go in the Brake Pump!

 

Without a long dissertation would it be possible to install an American automobile power brake unit and get rid of the Bloke system?

 

Hi Afterburner

Not familiar with that terminology, or what an American power brake unit is

 

It is ad easy to install the pre-ABS vacuum servo (booster) system as used on all XJSs up to about 1988 or so. You have to clear it with the insurers though.

 

Hi Greg

Cheers!

Just wondering how they would regard a Non ABS Braking System on the model of a Car that's supposed to have one?

Even though in all other respects those Cars are 'almost' identical

 

Depends on local rules, here in Aus if a car came with ABS is must be operational for registration.

 

Didn't know XJS had power brakes without ABS. So an adaptation could be accomplished to remove the Jaguar Booster and Master cylinder and replace with American or English systems sans ABS. Would in not be a simple adaptation to include ABS on the transfer of systems?

 

If you want to rid an XJS of the guastly complication of ABS, just fit the pre (about) 1987/88 OEM XJS braking system; which consists of a standard type Lockheed vacuum servo (booster) attached to a normal master/slave cylinder setup. All the required parts are easily available from breakers.

 

I agree, "guasly" and complicated braking system. I would go with a breaker and evaluate a non XJS model that has ABS and see if that could be a drop in package. With the ABS system in the '93 I loath to go to a brake shop and tell them how to bleed the brakes. You can see the $$$$ in their eyes!

 

I suspect this system has a reputation that exceeds how complicated it really is. As mentioned before, I have dealt with a similar system on Range Rovers.

On my RR Classic, the system is even more complicated because there are two brake circuits to each front caliper - an assisted one and an unassisted one. Now, if you read the instructions on beeding that you'd probably have to lie down in a darkened room, but the reality of doing it is that if you follow the procedure it's easy. I had to replace all the brake pipes on mine, so was doing a bleed from empty and it took about 10 minutes.

On all models of car there end up being tasks that take on mythical proportions of difficulty that, in reality, just need patience and an understanding of how the task is performed.