Which water pump pulley for A/C & PS? - IDI Engine - VWDiesel.net The IDI, TDI, and mTDI source.

• Which water pump pulley for A/C & PS? by anarchyx34 on 29 Jul, 2006 22:55
• I'm in the middle of my gas--->diesel swap. I tried to swap the double pulley on the water pump from the gas engine to the diesel, but it's interfering with the crank pulley. In other words, it's diamater is too large. I wish I knew this sooner, so apparently there's a differnent pulley for ac models, unless I have this all wrong, and the single pulley is supposed to run the water pump, ac compressor (which in turn drives the alt), and the PS uses it's own single belt using the outside track on the crank pulley?
• #1 by jtanguay on 30 Jul, 2006 10:35
• well the ps runs straight off the crank pulley as you said, and the water pump + a/c use the same belt, then the alternator runs off the a/c pulley (at least thats how it works on my car)
• #2 by tylernt on 30 Jul, 2006 20:48
• This setup is for pre-1985 cars. Post-1985 may be different.
  
• #3 by anarchyx34 on 30 Jul, 2006 22:22
• Quote from: jtanguay

  well the ps runs straight off the crank pulley as you said, and the water pump + a/c use the same belt, then the alternator runs off the a/c pulley (at least thats how it works on my car)

  
  
  Awesome thanks. I was figuring that but wanted to be 100% sure.
• #4 by jtanguay on 31 Jul, 2006 10:47
• np.   I hate PS...  and on top of that it was a pain to remove just to drain the cooling system!!! aarrrghh  :lol: