Has anyone done one of these? Which master cylinder does it utilize? Is it a worthwhile conversion? Is it a weekend job or a longer conversion?

Thanks guys and gals

 

Wow, so no one. Guess I'll do a write up and let you guys know once I get home of course.

 

I don't know whether it is the same conversion since it is only described as "an American company had produced a kit to substitute the high pressure system for a simple vacuum servo" in the artical, but I suspect it will be the same one.

http://www.aronline.co.uk/index.htm?xj40lttf.htm

The part about the brake conversion is part way down the artical.

Dacid

 

ArmyJag,
If you are referring to the brake boost conversion from the hydraulic system I can send you the instructions on doing the conversion. I have an '88 Vanden Plas and plan to do the conversion in a few months.
BigE
hrdknox88@aol.com

 

Hit me up if you need a Jag Series III brake booster. Never done or seen the conversion myself.

 

Big E, what kind of vacuum booster does it have you using?

JagTech when it comes to Jag parts your always my first call

I think this and a spring conversion on the rear suspension will be my two projects on the jag when I get home. Also if I find a solid trunk lid in white that would be good and a blue center console lid etc etc etc lol. Need to spend a few bucks on the Jag to so it doesn't feel left out over the Land Rover getting all the parts.

 

I did the conversion from Jaguarspecialties on my 1989 XJ40. All they do is send instructions and the metal plates needed to adapt the new booster to the brake cylinder and firewall. I did this about a year ago and haven't had any problems at all. Don't forget to bleed the brakes after the conversion.

 

I have a sweet white trunk lid, too!

Hope Army life is treating you well, and thanks agian for your service to the USA.

 

Ok so what booster does it use? Chevy ford jag?

Oh and Jagtech you have a pm on the trunk lid

 

Sorry for any confusion in this- here is some key info:

1) The key to the conversion is the booster unit- it has been specially selected to fit the application, and provide the correct amount of assist. It is a common unit, available easily nearly anywhere in the world, and is very inexpensive (ranges in price here in the US from $40-$50 used to an upper limit of only $195 or so fully rebuilt). Exact details of the make/model are provided in the installation instructions.
2) The stock (XJ40) master cylinder is retained and works perfectly
3) The stock (XJ40) ABS system remains fully functional
4) The conversion provides reliable, consistent, and maintenance free brake assist for the car. Not too much boost (touchy brakes) and not too little (poor brake application.

As a side note, it is not required to remove the master cylinder from the car when doing the conversion. So no brake bleeding is required either....

As far as has anyone done one of these, we now have (as of May 2010) over 275 of them installed all over the world. Our customers love them. That's a proven, reliable system, not something unknown from the internet....

For more info Email us back ro call:

andrew@jaguarspecialties.com

408 839 5569

Thanks

Jaguar Specialties

 

PS- I forgot to mention we also have the XJ40 rear suspension conversion available as well, probably at the best price around.

Please Email or call for more info

Andrew@jaguarspecialties.com

408 839 5569

 

Andrew, I know I'm planning on ordering the kit from you guys, but seeing as I'm deployed I was hoping someone could tell me which booster I need to order to go with the kit. That way all the parts are there when I get home, no waiting.

I also have you book marked on the suspension kit as well. Although I have to admit part of me would like to save the original suspension, as I assume the ride isn't the same after the conversion.

 

That's not a problem. Once you order the vacuum conversion kit I can immediately Email you the details of which booster we use (this is the key to the conversion). Then you can order the booster (from a supplier of your choice) both would arrive to you with no delay. That should take care of worries about lost time...

 

I am interested in this conversion as well. Does this work on 90 models as well? I assume so as most mechanical changes very very minor from year to year in the Xj40 series, I am so sick of this hydraulic system.

 

Actually I really don't mind the hydraulic system but I've been thinking the super secret squirrel swap would be easier in the long run to maintain.

Here's hoping it's not a odd ball and or expensive booster.

 

Yeah I don't mind the stock brakes however it already cost me a penny to replace the pump assembly and the ball is going bad and I don't want to spend 300 more on a ball that might go bad again in the not so distant future. So I want the kit(unless it is like some riddicoulous cost of 00 bucks) assuming it fits my car...

 

Once the vacuum conversion is done, the costly repairs like you mention are over. The cost to do the entire vacuum conversion is about the same as just one typical repair to the hydraulic system, so it's well worthwhile. And you can no enjoy the car with reliable brake assist, and no ongoing maintenance costs.

But the real clincher is this: if any of the hydraulic pieces you're removing are still good, they're worth money. Many of my customers take those pieces to Ebay or other forums to sell and make back a large part if not all of cost of the conversion. For example, the fluid reservoir isn't available new any longer, so that's worth $100, you already know what the pressure switches and accumulator are worth, and a rebuilt hydraulic booster is over $800, so a good used one (that isn't leaking) is easily $200. You get the picture.

The kit is designed for the 88-89 XJS Sovereign, and Vanden Pas models (87-89 in Europe)

For more info on the conversion kit and to order, Email me at: andrew@jaguarspecialties.com

Thanks

 

Damn to bad, guess I need to just live with the worthlesness of the accumulator.

 

I didn't realize the brakes were that different from 89 to 90 Model Years.

 

Yup,what's even worse the pads for '89s are more expensive than later models