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