Thread: 300Tdi Vacuum Pump

The only trouble I've ever had was the screws came loose on the cover plate.A bit of thread locker and never had a problem since. Pat

Not that style of problem, they have each gone noisy and stopped producing any vacuum. Something is failing internally, will pull this one apart (if I can work out how to get into it) any try and see what lets go.

A bit of research suggests the internal valves come adrift and get destroyed by the plunger.



Martyn

http://www.aulro.com/afvb/good-oil/4...d-replace.html

Any links to the Wabco pump problems?

There is an amount of information on taking the pump apart and repairing it, however if you do not like the prospect of using the same type of pump you could try a belt driven vacuum pump. Belt driven pumps are often coupled to the alternator such as with the TD5.

Found a couple on e-bay...

Land Rover Discovery & Defender 300 Tdi Vacuum Pump (eBay item 200522018804 end time 20-Mar-11 10:10:11 AEDST) : Cars, Bikes, Boats

Vacuum Pump Discovery 300TDi (eBay item 230575658196 end time 20-Mar-11 12:59:58 AEDST) : Cars, Bikes, Boats

you could always get rid of it all together and buy a electric vaccum pump they are available on ebay and i can tell you they work very well, then make the old pump an idler or get a shorter belt if that works

Originally Posted by abaddonxi

http://www.aulro.com/afvb/good-oil/4...d-replace.html

Any links to the Wabco pump problems?

Oil leaks from the pump end haven't been a problem (they don't last long enough)

Wabco vacuum pumps

Land Rover Forum in Africa • View topic - Faulty Wabco Vacuum pumps

300 Tdi vacuum pump failures - SA 4x4 Community Forum

Different types of failure but dont do a lot to instill confidence in the wabco unit.

Martyn

All these problems seem to be fairly recent. I wonder if there was a bad run, or a change in factory.

Just about the only thing that never needed repairing on my 300tdi was the vacuum pump, and it came to me having been rebuilt.