Author Topic: Timing AAZ with adjustable IP sprocket out of car---no flywheel  (Read 2580 times)

July 07, 2010, 01:07:08 am

wpinnix

  • User+

  • Offline
  • *

  • 49
I've got a 1997 AAZ with the adjustable Injection Pump sprocket. I'm replacing timing belt, water pump, tensioners, etc. I have 2 issues at the moment.

1) I have no flywheel on the engine at the moment (I purchased it without); AND since no transmission is attached....How do I find TDC for the crank?

2) when the engine is at TDC (judging by cam timing and cam lobes for #1 pointing up) the timing hole for the Injection Pump is off by about 1/4". Do I simply loosen the sprocket and turn the 19mm IP nut until the holes line up?

Thanks,
Bill

Reply #1July 07, 2010, 05:44:26 am

BAM

  • Guest
Re: Timing AAZ with adjustable IP sprocket out of car---no flywheel
« Reply #1 on: July 07, 2010, 05:44:26 am »
You require a flywheel to time this engine with or without the transmission.  The cheapest is use the transmission, no special tools required.

Reply #2July 07, 2010, 12:07:46 pm

wpinnix

  • User+

  • Offline
  • *

  • 49
Re: Timing AAZ with adjustable IP sprocket out of car---no flywheel
« Reply #2 on: July 07, 2010, 12:07:46 pm »
The flywheel and transmission are in the car with another engine attached. The engine I need to time is on the engine stand. I need to remove the rear timing belt cover to cut out a notch for my engine mount......thus necessitating the removal of the timing belt and IP sprocket cam sprocket and intermediate shaft pulley.

there has got to be a way of knowing that the crank is at TDC without having it mated to a transmission.....just need some input on how to do it.
« Last Edit: July 07, 2010, 12:10:40 pm by wpinnix »

Reply #3July 07, 2010, 02:39:47 pm

Vincent Waldon

  • Global Moderator
  • Veteran

  • Offline
  • ***

  • 3255
    • My collection of HOWTOs
Re: Timing AAZ with adjustable IP sprocket out of car---no flywheel
« Reply #3 on: July 07, 2010, 02:39:47 pm »
Vw makes a specific tool to find TDC with no tranny but it is rare and spendy... Otherwise you can jury-rig a dial indicator down injector 1 or 4.
Vince

Edmonton, Alberta, Canada
2001 silver TDI Jetta Malone Stage 1.5 , 2001 blue TDI Jetta SBIII 216s Malone Stage 3, 1970 Bay Window bus

Gone but not forgotten: 1969/1971 Beetles, 1969/1974 Westies, 1979 Rabbit, 1986 TD Jetta, 1992 gas Jetta, 1994 TD Jetta

Reply #4July 07, 2010, 02:42:24 pm

burn_your_money

  • Global Moderator
  • Veteran

  • Offline
  • ***

  • 8999
  • Personal Text
    Bright, On
Re: Timing AAZ with adjustable IP sprocket out of car---no flywheel
« Reply #4 on: July 07, 2010, 02:42:24 pm »
Or post a WTB for the top chunk of a transmission with the timing hole. That's what I did to my old blown up 5 speed.
Tyler