Damn ABS pump...i wanna get rid of it...

[ClassicBluey]

Anyone done a swap to the old style Disco 1 brake system?The guy that had my rover before me had done all the research and bought the parts to do it but decided to sell the truck instead.Im planning on buying all the bits he had and i do know where to start,But i would like to know if someone has done this already.My ABS pump just kept running for like 20 mins after i turned the truck off.It operates fine while driving,and tonight through some serious trail driving it was fine.But when i got home it stayed on and i had to drive it again to get it to stop its bullshit.
I hate these things i changed one on my last rover after it failing at 55mph.

[MuddyRangeRover]

Can't you disable it? I am sure you can, mine was disabled at one point or another,.

[ClassicBluey]

I dont think so.Thats why i want disco brakes.The sensors and the ABS in general are ok,its just that shit pump.When the pump went out on my LWB i couldnt stop and almost crashed.My foot just kept on going,I pushed so hard i thought i was gonna break the pedal.

[ClassicBluey]

So is it not the same as the 95 RRC?Can the 90s be disconnected?
I do have a spare one i keep with my other spare parts in the back .But i would as soon just get rid of it for a more simplistic setup.

[stevo-II]

I don't think you can disconnect it.....or at least disconnect the pump, its integral to the power brakes whether the ABS is enabled or not.

Of course, I'm assuming that its a pump/accumulator type system, the pump basically pumps up the pressure in the accumulator, that is where your power brakes come from, as the pressure in the accumulator drops, the pump comes back on the charge it back up. I had a Jag XJS that had the same type system, sometimes the accumulator ball can go bad and causes the pump to run often, also the pressure switches can go bad, or the pump itself. On my Jag the brake fluid was old/contaminated and when it got really hot here in Dallas combined with the really hot temps under the hood in that car, the fluid boiled or something and the pump just ran and ran and I had no brakes at all....once it cooled off, all was fine, I changed the fluid and no problems after that. On the Jag, the pump was acutally an AC/Delco part, while the off the shelf replacements from GM were not cheap either, you could find them on certain model GM cars in the scrapyard. Seems like I saw a pic of the Rover pump and it looked similar, but I might be mistaken.
Fortunately, my 1992 RRC was one of the few without ABS, part of the reason I bought it.

Of course, I could be totally confused and this is all wrong...LOL

*UPDATE*
Went to Rangerovers.net and looked up the info, it is a pump/accumulator type system, so you are stuck with the pump until you replace it with a vacuum type booster from an older RRC...not sure what your other options are.

http://rangerovers.net/repairdetails/abs.html

[ClassicBluey]

Yeah thats what i thunked.Well......looks like ill be doing a bit more research and then ill start on the swap.Just gotta lay it all out.If anyone has any tips...please...drop in your 2 cents.Hey stevo-II,would you mind snapping a pic of the way that system is set up under your hood? Nothing complex just a pic for general research.I dont think ive ever seen a non ABS RRC.I know they share an awful lot with the discos,is it the same basic setup?

[TooSlowMonroe]

pretty sure as stated above, I don't think you can delete the pump. I just had a pump go bad, and somehow, I dunno...current drain??? it took out the ABS ECU also...DAMNIT. I had to take stupid truck to the dealer to figure out why new pump was not working...and with little to no brakes. AUGH. Keep us informed. I would not mind getting rid of the ABS system too...but...ONE QUESTION: doesn't the ABS system also have something to do with the traction control. Not sure about you guys, but my TC kicks in all the time when off road.

I know...I know...get lockers...augh.

-Too Slow

[p76rangie]

Be careful about any road regs in your area. In Oz it is illegal to take ABS off a vehicle that came out of the factory with it.

[ClassicBluey]

My truck doesnt have traction control.If it does i never noticed.According to the research the dude did before me,it should be straight up mechanical install.But the wireing is a little comlpex.He pieced together a bunch of schematics.Hes a mechanic at Road Brittania and hes worked on RR all his life so its a bit easier for him to comprehend than me.I worked on Tower Cranes and can read schematics,but you need a familiarity to do it quickly and easily. I mean if it does get too crazy complex for me ill just start a collection of abs pumps till i get it right.
I got pleanty of room in my rover for spares.

[ClassicBluey]

Originally Posted by p76rangie

Be careful about any road regs in your area. In Oz it is illegal to take ABS off a vehicle that came out of the factory with it.

Thanks for the heads up i didnt know that.Ill def check on it.Thank you kindly

[daway]

my dad disconnected the abs on his 91 rrc.

[stevo-II]

Hey stevo-II,would you mind snapping a pic of the way that system is set up under your hood? Nothing complex just a pic for general research.I dont think ive ever seen a non ABS RRC.I know they share an awful lot with the discos,is it the same basic setup?

Here ya go sir....its a very simple system, regular old vacuum boosted power brakes...nothing too special. Since my truck is a bit of an oddball, a 1992 without abs, I'm not sure if it uses the same master cylinder and booster as the older RRC's or not.....I'm assuming it does.
And, for everybody else, yes, I know I have a brake fluid leak, it seeps out around the seals between the reservoir and the master cylinder...its more of an annoyance than anything, the only bad thing is that brake fluid removes paint - as evidenced by the bubbling paint on the vacuum booster.

Steve

[stevo-II]

What was I thinking????? I had to get a picture of her sitting in the driveway while I was out (its cold here in Dallas today..brrrr) and force all of yall to look at her...LOL

[ClassicBluey]

Thanks a heap,that will help.Its not exactly the same as the Discos but its a lot more simple.Thank you very much......Oh and did you know you have a brake fluid leak?

[stevo-II]

LOL!

Thats not a fluid leak!!!!, its a factory PITA (Prophylactically Inhibit rusT Advancement) system that came from the factory!!!

Steve