Author Topic: wtb tdi piston 1Z or AHU (Read 6970 times)

jtanguay · « **Reply #15 on:** November 30, 2007, 04:25:31 am »

are those 1Z/AHU pistons? or ALH?

jimfoo · « **Reply #16 on:** November 30, 2007, 06:59:43 am »

I'm assuming he read the post title, plus I searched posts and see he has/had a '97 TDI.
Thanks for the numbers!!!!

MacGyver · « **Reply #17 on:** November 30, 2007, 08:16:24 am »

Ah good point lol.
I still have my 97 TDI with 1Z. This one is out of my dad's previously abused 98 Jetta, an AHU. We got a spare piston from Diesel Dazzler, had the rod straightened, bought a head and it lives again :wink:

jimfoo · « **Reply #18 on:** November 30, 2007, 12:29:34 pm »

Quote from: "MacGyver"

There is a brass insert in the pin holes, I'll assume that's standard since I don't have any others in front of me.

Top of pin hole to top of piston: 32.70mm.

Bottom of pin hole to bottom of piston directly below hole: 7.98mm

However, the skirts are longer front & back than on the sides where the pin is, so it appears to be ~13.15mm from the bottom of the pin hole to the lowest part of the skirt.

Taken as approximates, that should tell you whether it's within the margin of error or unworkable.

Let me know if you'd like anything else

AAZ piston top of hole to top of piston-32.8mm.
Bottom of pin to bottom of piston below pin-7.73mm.
Bottom of lowest skirt to bottom of pin-12.9mm
Look about identical to me!