Vacuum Leak in Throttle Body

Discussion in 'Technical' started by DoubleZX, Jul 6, 2010.

  1. DoubleZX

    DoubleZX Double Trouble

    Ran a pressure/vacuum test (only about 4 psi) the other day and found that my throttle bodies appear to be leaking around the shaft seals. Is this something that can be repaired by getting new seals? As the seals on the left hand side under the Throttle sensor don't seem to be ones that 'can be' replaced? And this is the one that is leaking the most.

    So can throttle bodies be repaired?
    If not, is there a difference between the Throttle bodies of a 90 model TT and a NA? I have a TT.

    It appears that there are after market Throttle Bodies available but they all seem to involve welding which I am not comfortable with.

    Any advice would be appreciated.
     
  2. a2zed

    a2zed Guest

    The seals can not be replaced easily. TT and NA throttle bodies are the same, the only difference is the passenger side TT throttle body has an extra water outlet feed to the turbo. If your under plenum hoses have been bypassed, you can use the NA throttles, if not, you either need to do the bypass or use TT throttles.
     
  3. DoubleZX

    DoubleZX Double Trouble

    No the leak is not coming from the gaskets it is coming from the butterfly shafts.
     
  4. DoubleZX

    DoubleZX Double Trouble

    Thanks, thats what I thought :(
    I will now try and find a secondhand TT set.
     
  5. Tektrader

    Tektrader Z32 Hoe, service me baby

    I have a good spare pair here. PM me ;)

    BTW I have seen these leak from the Butterfly shafts a few times before. Usually from behind the TPS
     
  6. DoubleZX

    DoubleZX Double Trouble

    Thanks. PM sent.
     
  7. East Coast Z

    East Coast Z Well-Known Member

    Why not attempt to replace the seals?
    If you can't do it or stuff them up, then look for replacements!
     

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