TimCo

This is a followup to my previous post from early December about the A28.01 4 speed automatic transmission failure in my 1983 928S. The symptom was pretty radical - the engine rev'd in all forward gears as if the shifter was in NEUTRAL. Only reverse was still working.

I had been driving the car to work, 100 miles a day, 5 days a week for 6 months without as much as a hickup. It ran purrrrfect. Everything worked, ... great ride! But now I was thinking that this original, 2-owner, 75K mile, dealer maintained beauty was down for the count. I went through the fluid level check, oil filter change, fluid level check, B2 piston upgrade, fluid level check, etc. etc. with no result.

If you go back and read through the original posting, you will see a lot of photos and discussion. Steve Cattaneo was directing me through the steps and I was feeling pretty good about it. Except ... that I didn't get a positive result. Still, no forward "gears". Wazuup!

At that point, Steve jumped in and invited me up to his shop (MASTERTECH TRANS) in Walden, NY about a half hour from NJ and half from CT. And, I'm really glad he did. I was spending a lot of time trying to find a needle in a haystack - why did this thing break! It seems that fixing an auto trans takes a combinaton of art and science. The science is in the manual but the art is hard to come by (inspection of a seemingly perfectly good part to determine whether it should be replaced or reused, etc.).

I'll get to the bottom line ... I got my car over to Steve's shop (wow - what a shop!) and picked it up a couple of weekends later. This trans is now shifting so beautifully, it is unbelievable. On the low end of the scale - absolute minimum throttle upshifts from 1-2-3-4 are so much earlier, crisper and effortless. On the other end of the scale - higher throttle shifts through the gears are crisp and it now feels almost controllable through throttle position instead of getting a premature shift into a higher gear. In other words, it seems like the shift points are getting feedback from the throttle position instead of some secondary factor like vehicle speed or rpm or bumps in the road or who knows what.

Just wanted to let the group know that I give my highest recommendation to Steve at Mastertech for coming to the rescue. After I got back home, I got three messages from Steve asking how everything was!!! Jeese ... when I had knee surgury, I never got a call to see how I was! Steve is terrific!

Tim

reynolds122

Total rebuild or something less? What was the final cost? Thanks for the update on your issue.