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Originally Posted by Samuel M. Ross
back there in NY. I'm impressed with your extensive past posts on trannies!
You do call your recommendation a "test"... so does that mean there would be alternative actions afterwards depending upon how the "test" goes... or would I just leave it that way if there was enough improvement over what we have now ? Right now I have my Son pretty well trained to shift manually... and even how to use 2nd gear with a manual shift without it flaring until well above 25mph! So with this trick we are able to use all 4 gears and manually accellerate quite well! So we can use the car quite well as it is!
But I still think that M-B's reason for their K-1 kit for the 722.3/722.4 series was because of design problems... and it is entirely likely that the later trannies in the 722.1/722.2 series might very well have the same design flaw.
Sam
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Quote:this is based upon a suggestion by “C32AMG” who must have nightmares about these auto trannies or maybe he just worked most of his adult life in or owned a transmission shop and worked on a lot of these early trannies.
If its works leave the springs in. The use of a pressure gauge is the right way to diagnose this problem, verifying correct modulator and working pressures, low pressures can cause shift over lap problems = flare up shifts
The K1 kits were made to compensate for normal ware and tare in the valve body. The K1 kit are about $12.
Thanks for the link, I am always looking for technical information, especially if it make my job easier. I am familiar with ZF transmissions, my first ZF rebuilt was a ZF 3HP 22 in a Peugeot.
I have been rebuilding transmissions, transfer cases and differentials for 30 + years and still counting, I have owned my transmission shop for many years and still rebuilt every day. Good competent reliable help is hard to find. At 53 years old I still love working on cars.
Good luck.