Monday i was able to tidy up the trans and its all back together with no missing peices
I got the tail nut off lol. I caved in and bought the socket. Mainly because i need a 30mm deep socket in my box for axle nuts, plus. Hey its another tool. Actually ill rebuild the trans i take out of my 420 once i do the swap, then ill have another good one on the shelf for the late future. Or as an emergency for the 560.
Theres a few things to note for future info.
These gen 2 w126 trans use a magnetic pickup for running the speedo. Just keep it in mind when your in the junk yard looking for a similar trans to swap. Also these 722.3 do not have a secondary pump, and the govenor is held in with this easy to use side swing clip. I read one of the folks on here was having a heck of a time with the c-clip on his govenor.
And these do not have the oiling spiggiot in the back that sprays fluid on the govenor gear.
So i wanted to take the back half of the trans apart and check the b2 band and k2 clutch packs. They looked ok, (k2's were really dark and questionable), but i was already this far in, new b2 and k2 set went in ( i picked up a good score of new MB trans parts from a good friend), and i checked the tolerances. All good.
So all in all fully rebuilding this trans was a fun experience. Even though someone was in here before and replaced all the seals, after getting in there and seeing some shortcuts were taken, i wasnt going to take any chances. Even though transmissions in general are a very voodoo thing for most; for myself as well. After digging in and getting a feel for these 722.3, they are actually very simple in design and definetly do the task at hand.
I cant wait to get into another one
Just follow the benz manual when it comes to tolerance specs, and get yourself a good digital caliper and depth caliper and youll be good to go. And use genuine benz parts whenever you can. Its not worth the hassle to me to tear the trans apart because a seal failed or a band cracked because it wasnt original merc part.