clutched water pump pully on 1.9 aaz, how do you test it? - IDI Engine - VWDiesel.net The IDI, TDI, and mTDI source.

• clutched water pump pully on 1.9 aaz, how do you test it? by madrogers on 25 Jan, 2010 21:26
• got this w/p pulley, how do i know if is working, is there a way to test it , very littel resistance turning ether way by hand. And what the deal on a clutched pully, heard of them the alt. but not the w/p.
• #1 by rallydiesel on 30 Jan, 2010 14:32
• I seriously doubt that is a clutched pulley. I would assume it's an idler pulley combined with the actual water pump pulley.
• #2 by G60ING on 30 Jan, 2010 20:05
• I bet it looks like the multi piece water pump pulley on the Rallye. Its not a clutch. Its a just an over priced complicated jig saw puzzel. 
  
  
  
  here are some waterpulleys for you:
  http://forums.vwvortex.com/zerothread?id=244434
  
• #3 by madrogers on 31 Jan, 2010 19:42
• this is a pic of the pulley (I hope pic is pasted,will try again if not), I can spin the outer part separate from the inner part , may be it is not clutched and just not pressed together properly? i am not familar with it.
  
• #4 by svenakela on 31 Jan, 2010 23:28
• There are clutched water pump pulleys, my VW Touran got one for sure. It's there to cut emissions, better cold start power etc.
  
  http://www.amazon.com/Universal-Clutch-Water-Pulley-Holding/dp/B000RT924E
  http://www.sae.org/technical/papers/2007-01-4260
  
• #5 by burn_your_money on 01 Feb, 2010 18:44
• That looks like a 1.6 alternator/Wp setup.
• #6 by madrogers on 01 Feb, 2010 21:13
• yes it is a pully off a 1.6 t/d apx 1992, just looking to find out if is still good? not much resistance in turning it both ways. how can i tell or test it , what do i look for??
• #7 by Powered by Spearco on 01 Feb, 2010 22:24
• They make noise when the bearing goes bad. Its a idler pully for AC, and for PWR. steering.
  The two belts spin at different ratio's, so one free wheels.
• #8 by Vincent Waldon on 01 Feb, 2010 22:33
• Aha.... so in the picture the OP must be missing a belt that would normally go to powersteering and A/C.... makes sense now.
• #9 by madrogers on 02 Feb, 2010 08:17
• yes that all make sense now , thanks for the rply/ info . sometimes working from a box-o-parts makes things a bit difficult.