Tranny problems, later model 4 speed manual - PeachParts Mercedes-Benz Forum

junqueyardjim · #1 09-19-2011, 06:29 PM

Since I finished this swap this summer, in the course of normal driving I have noticed at times things are just not right in that gear box. I didn't get the shift fingers really aligned tell last week when I made that 6mm pin to get and hold them in the correct position for attaching the shift rods. So until I had that right, I felt the occasional slipping out of 1st gear was an adjustment problem. But now, all of a sudden the problem has grown, to where now if anything more then minimal throttle is given in first gear it looses it's "gearing" we might say, makes a grinding type of racket, and as soon as I get off the throttle it hooks back up and will throttle up if I don't over do it. This is in first gear only, although perhaps one time I had it in 2nd. The transmission does seem a bit noisy, but unless it has been rebuilt, has about 300,000 on it. Has anybody been really deep into the "one piece aluminum case 716.21 MANUAL. This transmission undoubtedly took an awful blow when the PO blew the 240D in front of it and it locked up at interstate speed - If I remember Nate said he was pushing it hard in 3rd, maybe 2nd on an on ramp and this thing locked up totally. Well we know that before one can get to the clutch this gear box really bought the load. Since this is a constant mesh transmission, would it be possible that this massive load on a well worn transmission took enough teeth off the shaft that it can't hold the load. Here is an exploded view of the box. This is from the Russian EPC. http://mb.ilcats.ru/part/class/1/ccode/F/cat/03G/type/716/subtype/210/group/26/subgr//vers//imgno/3 Anyone know of a mid western shop that will go through this. Also, could the cast iron 2 piece transmission be used in place of this one with a correct set of shift rods.