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Thread: Lifespan of a 300tdi brake vacuum pump?

  1. 20th April 2009, 08:13 PM #1
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    MacFamily
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    Lifespan of a 300tdi brake vacuum pump?

    Gday Guys
    As normal the pump has a leak have done lots of reading and searching, also downloaded Aces's Vacuum pump repair guide.

    But my question is with almost 340k on the clock which is alot of braking mind you should I just replace with a new one?

    Ive heard that if they start ticking it needs replacing but to be honest I wouldn't be able able to tell if it was ticking more over the motor.

    I can get a new one with gasket for $360 and for piece of mind its not really alot of money.

    I know there have been plenty of Forum members who have repaired there's, so my question is have you had any problems since you repaired it.Not so much leaking but your brake performance eg harder pedal, softer pedal or just didn't make any difference.

    I could always just buy new repair old one to keep as spare.

    Anyway just wanted to see what other people's thoughts are espacilly our forum landy mechanics.

    Thanx in advance Aaron
    Aaron & Jacinta
    1994 300Tdi Defender
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  2. 20th April 2009, 08:43 PM #2
    Olfella
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    Have done in 2 vac pumps on my 300TDI over 760,000 KM. 1st one the cover rivets came loose causing oil leak and later the cover started rattling. Replaced the rivets with bolts and nuts to give a few more KM. Both units eventually had valve jump out into piston chamber and destroy it. due to the fact that i
    the pump is for braking, I would renew it.
    Regards Chris.
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  3. 20th April 2009, 08:47 PM #3
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    Another one gone...

    Yes common prob, annoyingly they can leak horrifically and still work fine

    I would replace with new, interestingly there are some unbranded ones avail at the moment, I have one return leaking after 18months, WILL NOT be fitting unbranded NON WABCO ones again

    JC
    The Isuzu 110. Solid and as dependable as a rock, coming soon with auto box😊
    The Range Rover L322 4.4.TTDV8 ....probably won't bother with the remap..😈
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  4. 20th April 2009, 08:52 PM #4
    marting
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    Hi Aaron
    Mine has a leak also and I have been advised by a couple of Landy places down here that due to the price of a new one not to bother overhauling the old one.
    I also have a very hard pedal so would also be interested to hear if a new unit will change the feel of the pedal.
    Cheers, Martin
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  5. 21st April 2009, 09:01 AM #5
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    And when mine went. It was actually cheaper to purchase from the uk then it was for someone to rebuild.
    Was also advised against rebuilding
    Our Land Rover does not leak oil! it just marks its territory.......



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  6. 21st April 2009, 10:31 AM #6
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    Ha!

    Just looking at one now, 2 years old and leaking like a sieve. It is ANOTHER unbranded NON Wabco one.

    JC
    The Isuzu 110. Solid and as dependable as a rock, coming soon with auto box😊
    The Range Rover L322 4.4.TTDV8 ....probably won't bother with the remap..😈
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  7. 21st April 2009, 06:22 PM #7
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    MacFamily
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    Thanks guys for your replys pulled the old off tonight pics below





    Didnt have rivnuts either just little screws also the pump hade RM stamped on it.
    Aaron & Jacinta
    1994 300Tdi Defender
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  8. 21st April 2009, 07:43 PM #8
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    Quote Originally Posted by justinc View Post
    Ha!

    Just looking at one now, 2 years old and leaking like a sieve. It is ANOTHER unbranded NON Wabco one.

    JC
    JC, after seeing this thread I was doing a little search, and it appears WABCO isn't that well regarded for QC either.
    Have you seen any brand that works better than the OE WABCO ones ?

    (and I only worked out today that WABCO is the old Westinghouse Air and Brake Co...... )
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  9. 21st April 2009, 08:37 PM #9
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    Quote Originally Posted by MacFamily View Post
    Thanks guys for your replys pulled the old off tonight pics below





    Didnt have rivnuts either just little screws also the pump hade RM stamped on it.
    Aaron, that is the non WABCO model, and they are very poor Quality.

    JC
    The Isuzu 110. Solid and as dependable as a rock, coming soon with auto box😊
    The Range Rover L322 4.4.TTDV8 ....probably won't bother with the remap..😈
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  10. 22nd April 2009, 06:51 AM #10
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    my brake pump is also due for replacement AGAIN! It is my second unit and is the genuine wabco. The local supplier says that wabco are notorious for failing but the others brands are worse.

    What I want to do is use a more conventional alternator driven pump. In theory it should be fairly straight forward job. I know I will have to do my alternator eventually as its the original one and I have just about done 300k rough kilometers, so it will need a service soon too. This might be good way of sorting them both at once!

    Has anyone done this?
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