Mud-club

Vehicle & Technical => Discovery => Topic started by: Big Rich on August 25, 2009, 10:32:45

Title: 300 tdi Auto solid brakes
Post by: Big Rich on August 25, 2009, 10:32:45

300 tdi Discovery. Breaks stuck on. Any ideas?

Title: Re: 300 tdi Auto solid brakes
Post by: Disco-andy on August 25, 2009, 11:21:01

how long has it been sat?  handbrake on or foot brakes? abs?

Title: Re: 300 tdi Auto solid brakes
Post by: Big Rich on August 25, 2009, 12:57:06

Its used daily from his house to the farm. Its auto. No abs lights on. They just went hard!

Title: Re: 300 tdi Auto solid brakes
Post by: wizard on August 25, 2009, 15:21:43

The servo might be stuffed.
Take the vacuum pipe off the servo and see if the brakes release.

wizard :twisted:

Title: Re: 300 tdi Auto solid brakes
Post by: landroverkeith on August 25, 2009, 21:22:58

Quote from: Big Rich on August 25, 2009, 12:57:06

Its used daily from his house to the farm. Its auto. No abs lights on. They just went hard!

 :roll: snigger  :grin:

Title: Re: 300 tdi Auto solid brakes
Post by: Big Rich on August 26, 2009, 09:36:27

Your a bad man Keith.  :doh:

Title: Re: 300 tdi Auto solid brakes
Post by: Big Rich on August 26, 2009, 15:47:03

Vacume pipe off and no change. You can't pump the breaks too. When you start it with your foot on the breaks no change. Oil is clean and at the right level.

Title: Re: 300 tdi Auto solid brakes
Post by: bogie on August 26, 2009, 21:35:23

Sounds dumb but perhaps the pedal has locked down,jamned or something got stuck up there or even master is seized????????

Title: Re: 300 tdi Auto solid brakes
Post by: Disco-andy on August 26, 2009, 22:25:23

I don't often resort to this but , but if this was me and the brakes jam on ( and may well do again, after a quick fix  ) id be looking towards a garage.

 

Title: Re: 300 tdi Auto solid brakes
Post by: mattyme on August 26, 2009, 23:05:16

my guess is that you have at least 1 collapsed flexi pipe.

when the inside of the flexi pipe collapses it sometimes forms something similar to a valve and you pump brake fluid thru it and the 'valve' doesnt allow it to return. hence the brakes being stuck on!!

hope that helps....

Title: Re: 300 tdi Auto solid brakes
Post by: bogie on August 27, 2009, 18:37:28

Can of petty and a match!

Title: Re: 300 tdi Auto solid brakes
Post by: Disco_Stu on August 28, 2009, 11:05:09

Sounds like the master cylinder to me.

A freind of mine had somthing similar, this was traced back to a failiure in the brand new britpart master cylinder he had fitted. Swapped it out for a decent brand and cured the problem.

Stu.

Title: Re: 300 tdi Auto solid brakes
Post by: Range Rover Blues on August 29, 2009, 22:53:24

How stuck? are we talking seized callipers or full on emergencystiop levels of braking?

If the later I have a dim recolection of an ABS fault hat causes this.

Title: Re: 300 tdi Auto solid brakes
Post by: Big Rich on September 01, 2009, 19:10:56

Although the pedal is hard the breaks are not on. You do get a very small amount of breaks but the pedal won't go down.

Rich

Title: Re: 300 tdi Auto solid brakes
Post by: karlo on September 01, 2009, 19:13:26

I had a similar thing a couple of years ago although intermittent which was the vac pump.

Title: Re: 300 tdi Auto solid brakes
Post by: Big Rich on September 07, 2009, 12:00:40

I have replaced the Servo and vacume pump but the breaks wenk solid so the disco could not move. I bled the flied out so it could be moved. Any ideas now what to look at?

Thanks

Rich

Title: Re: 300 tdi Auto solid brakes
Post by: Big Rich on September 08, 2009, 15:00:24

Replaced the servo and Vacume pump. Nice sharp breaks but then lock on solid after about 400 yards.

I'm scratching my head now. Any ideas? What do I look at next? where would yuu go from hear?

Any help and ideas really appreciated.

Rich

Title: Re: 300 tdi Auto solid brakes
Post by: Scotsman on September 08, 2009, 22:07:24

Hi, did you replace any washers/spacers between the servo and master cylinder?, not done the disco ones myself but had the same prob with a leyland daf van. I fitted new servo and cylinder but forgot the plastic distance piece so when you press the pedal, the fluid goes in as normal but not all returns. Next time you brake, the brakes start to bind then they locked up

Title: Re: 300 tdi Auto solid brakes
Post by: Big Rich on September 09, 2009, 12:11:58

Didn't see any spacers. Just took the old off and the new land rover part on.  :-.