AAZ V's 1Z / AHU

 yes and answers your question 

Edited by rolo - 04 Aug 09 at 22:22

AAZ Crank Pully on Recently Manufactured Motors? « on: July 07, 2005, 10:17:48 AM » Quote I read in an earlier post on another list, that the latest aaz engines from Gernany have the updated crank/pully arrangement.  The person doing my upgrade to 1.9 AAZ from 1.6 NA in an '82 Westy said the same thing.  Can somebody with first hand knowledge confirm this or is this just a fantasy. Is there a way to confirm the crank/pully/key arrangement without removing the crank pully? Report to moderator   Logged '97 Passat TDI '82 Westfalia with 1.9TD AAZ

QuickTD Veteran Offline Posts: 1125 Location: Dashwood, Ontario, Canada AAZ Crank Pully on Recently Manufactured Motors? « Reply #1 on: July 07, 2005, 05:12:22 PM » Quote I believe that new engines and reman engines are both coming with the newer type TDI pulley.  You can confirm this by reading the part number on the face of the crank pulley. You will need to remove the harmonic balancer/accessory drive pulleys (4 bolts) if they are in place, but you do not have to remove the crank pulley centre bolt nor disturb the timing. The new TDI style pulley part number is 028 105 263D The older troublesome pulley part number is 028 105 263E

 Got a clutched pulley on mine,  was on the 97 aef, looked but never seen one on an early tdi. What did happen was lads and some who should have known better, thought that, that was the way to remove the belt. I remember seeing serious heat and impact guns at work by SOWSKB.

Edited by rolo - 03 Aug 09 at 21:00

Well I must say that is quite fascinating, and not something i was aware of. So is there any potential for fiiting this type of alternator pullet to an aaz???  Is this infact what you will find on a tdi engine? Did VW actually go with this?

Okay, like the ones I bought from you a couple of weeks ago, I hope! Thought I better get in there and swap it for peace of mind. Nice one.

Cheers Rolo, and everyone else. As Monsho said, it's been done time and again, but my theory is that as miles and years are clocked up, peoples knowledge, and therefore opinions and conclusions  are evolving and changing. that is clearly the case, as there still seems to be some passion in the debate. Rolo, I know you don't want to talk about this anymore, but I would love to know, if anyone can tell me, what constitutes a late AAZ, and therefore one that might have an improved crank/pulley..? Is the evidence clear at the crank nose, or engine codes, later pulleys, different electrics on the pump? Mines from a mid 94 Cordoba. That's pretty late I guess.

Depends if you want it right or not, fairly pointless putting TDI on a standard box as it will go about 65 flat out, all power much further down rev range meaning either a taller 5th or best way is a new ring and pinion but to change that you have to completely strip the box.

labour and parts?

AAZ is Easy (cheap)

My concern with the 2.5 TDI 5 pot from the Audi is that they weren't that frugal (for a diesel) in the cars they were fitted to. What mpg are you getting in a T3?