300tdi defender brake problems

M

madasaweasel

Guest

• Aug 15, 2005

• #1

can anyone tell me how i can check if my brake problems are from
the vacum pump or the servo?
brake pedal goes hard at low/idle revs?

TIA
dave

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A

Austin Shackles

Guest

• Aug 15, 2005

• #2

On or around Mon, 15 Aug 2005 14:49:37 +0100, [email protected]
(madasaweasel) enlightened us thusly:

>can anyone tell me how i can check if my brake problems are from
>the vacum pump or the servo?
>brake pedal goes hard at low/idle revs?

300 TDi vacuum pump is a naff unit and known to fail, also costs about 109
quid to replace, buggrit.
--
Austin Shackles. www.ddol-las.net my opinions are just that
"My centre is giving way, my right is in retreat; situation excellent.
I shall attack. - Marshal Foch (1851 - 1929)

 

S

SimonJ

Guest

• Aug 15, 2005

• #3

> >can anyone tell me how i can check if my brake problems are from
> >the vacum pump or the servo?
> >brake pedal goes hard at low/idle revs?

Faulty servo, even with the engine switched off, the servo should maintain
enough vacuum to give you a couple of presses before it goes hard.

If it goes hard at idle, it just means the pump cannot keep up with the leak
unless you rev it.

 

A

Austin Shackles

Guest

• Aug 15, 2005

• #4

On or around Mon, 15 Aug 2005 20:14:16 +0000 (UTC), "SimonJ" <[email protected]>
enlightened us thusly:

>> >can anyone tell me how i can check if my brake problems are from
>> >the vacum pump or the servo?
>> >brake pedal goes hard at low/idle revs?
>
>Faulty servo, even with the engine switched off, the servo should maintain
>enough vacuum to give you a couple of presses before it goes hard.

good point.
>
>If it goes hard at idle, it just means the pump cannot keep up with the leak
>unless you rev it.

or the pump's on it's last legs. Discos take a LOT of stopping with no
vacuum.

--
Austin Shackles. www.ddol-las.net my opinions are just that
"Nessun maggior dolore che ricordarsi del tempo felice nella miseria"
- Dante Alighieri (1265 - 1321) from Divina Commedia 'Inferno'

 

M

madasaweasel

Guest

• Aug 15, 2005

• #5

thanks for the reply
when you put it like that it does make sense
he ho its off to john craddocks web site

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