Brake vac pump

[90Mike]

Hi folks does anyone know if a 200tdi & 300tdi vac pump are the same  :-k i think mine is on the way out  :roll:

[chris9119]

What year is yours and is it a 200 or 300tdi?

Part Number : NTC4991 - BRAKE MASTER CYLINDER DISCO TO 1994. RRC - 1986 TO 1994

Part Number : STC1285 - BRAKE MASTER CYL NON ABS DISCO 1 1994 ON

They don't list anything different, so one can assume that the parts are the same and as above.

[90Mike]

Sorry  :roll:  :oops: it's a 95 300tdi with ABS

[hobbit]

One thing you may want to check. is there a small hose coming out of the back of the master cylinder?

Going through a t piece, check see of the hose is split on the join, this is a favourite for brake probs

[solihull-mick]

He Said VAC PUMP!!!! NOT master cylinder, and i can say 100% 200 and 300 tdi vac pumps are not the same,

Part No. ERR3539 300 TDI vac pump hope that helps

[90Mike]

Hmm been  :-k could i just have an air leak from the servo or pump/pipes thats causing my problem
i can pull up to a stand still after a run no problem with full sevo power but if i move off again and stop straight away like in traffic the pedal is hard  :shock: but give it a good rev and i then have power again  :?

[solihull-mick]

Can you hear an air leak in side the car? could be a weak pump, as the end plate on 300 vac pumps are rivited on and tend to work loose, check your pipe work for leaks,

[90Mike]

I cant hear anything inside  :-$ i will have a closer look at the pipes tomorrow.

could be a weak pump

that was what i was thinking
i was very kindly  ;) sent this link http://www.the4wdzone.com/vacuumpumpfix.htm  i think it got to be worth a go :)
cheers mike

[solihull-mick]

I use nice stainless allen key bolts, tap out the vac pump body with an M6 tap, job done, looks very neat,

[90Mike]

Sounds like a lot of work just to get it covered in mud  :D

[hobbit]

One thing you may want to check. is there a small hose coming out of the back of the master cylinder?

Going through a t piece, check see of the hose is split on the join, this is a favourite for brake probs

where it read master cylinder was meant to read servo unit, brain firing on two cylinder at this time of day

[90Mike]

Cheers guys i had quick look today and the only leak i can find is oil from the pump  :roll: