PIOTRN

I recently rebuilt a short bellhousing 930 transmission. I have the workshop manual for the turbo and all the tools necessary. Unfortunately just like the two others that I did the numbers at the bottom were scratched off and could not be read because of dragging it on cement. There was a 0.25 shim under the 4-point bearings, (pinion locating shim) but I decided to check the distance E anyway. The ring and pinion were both stamped 4 76. The pinion had N30, and another 30 etchings on it. The ring gear was etched with 30, t-0.15 and 15. I guess the pair code is 30, and backlash is 0.15. The question comes up that after adding r to R, the distance checked with the VW385/1 mandrel was shorter by 3.6mm (using R as 82.29 for 930/30,33,34) since the ring/pinion ratio is 9/38. The 5 mm magnetic gauge plate was attached to the pinon when using the mandrel. This is so much off that 2 out of the 5 times I did the measurement the needle on the mandrel pushed the magnetic disk off the pinion. The 3 times that it did not push it off I double checked the set distance on the mandrel and it was dead on. Can anyone please shine some light on this, I would greatly appreciate it.

Blaine Sellie

Wow.........you lost me at "I recently............". just kidding.

Free bump.

A930Rocket

Setting up the R&P is way beyond me. I only re-built my trans with new dog teeth, synchros, sliders, etc.

gecc

YOU'VE GOT A 385 bar??? It's been soooo long since I've used one, I don't I think that I remember how.
Good luck Charlie