BRAKE VACUM PUMP2.5 N/A 90 engine

Hi all. how do i test a brake vac pump? or is it the servo? pedal hard doies no drop when i start engine

Remove pipe from servo start engine check if vac in pipe against your hand.

fyne1 said:

Remove pipe from servo start engine check if vac in pipe against your hand.

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can you repair or is it a replace.if so any one got one?

Which? Pump or servo?

instantsquid said:

which? Pump or servo?

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pump

Is it definitely knackered?

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Land Rover Defender 90 2.5 TD/NA Brake Vacuum Pump on eBay (end time 13-Apr-11 15:28:17 BST)

you can repair them usually you just need to remove top and clean vanes and rotor the vanes fly out centrifugaly and often stick, the union that vac pipe goes on is one way valve with small ball cleaning also helps this ,if you get stuck i could let you have one

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I've got an issue with my brakes (still). Pedal is spongey, have to sometimes pump it 2 or 3 times to build up enough pressure to get decent braking.

Pedal is hard when engine stopped. Does not fall when engine starts. Fluid is correct level but well used, darkish in colour.

I've got a spare vacuum pump..tempted to buy a master cylinder and a servo and change the lot..i just dont know where the problem lies...

only air or cotaminated fluid or ballooning flexi will make pedal spongy,servo only gives your foot more power so will show up any prob before you notice without servo assistance

Hmm..time to change the fluid 1st then.

jamesmartin said:

you can repair them usually you just need to remove top and clean vanes and rotor the vanes fly out centrifugaly and often stick, the union that vac pipe goes on is one way valve with small ball cleaning also helps this ,if you get stuck i could let you have one

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do you remove the pump first then take top off, or just take top off in situe. Loz.

you can take it of in situ

jamesmartin said:

you can take it of in situ

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fitted hose pipe to servo and on to another vehicle,made no diffrence? started the landy finger over pipe vacum so pump ok.must be servo? there is a little square plug that you can unscrew, bit like a mini oil drain plug vacume there also.so is it change the servo?
the pedal is right at the top. cheers for your replys. I have some disco servos but no series 3s.any one got one kicking about?

laurieash said:

fitted hose pipe to servo and on to another vehicle,made no diffrence? started the landy finger over pipe vacum so pump ok.must be servo? there is a little square plug that you can unscrew, bit like a mini oil drain plug vacume there also.so is it change the servo?
the pedal is right at the top. cheers for your replys. I have some disco servos but no series 3s.any one got one kicking about?

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I have got a photo in my profile but dont know how to get it on here to id it?

laurieash said:

I have got a photo in my profile but dont know how to get it on here to id it?

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i beleve you can fit a 90 servo as it has disc brakes.