The trans mount crossmember mounts to nuts that can be moved forwards or backwards (into different slots) in the frame rails.
I believe that the engine compartment crossmember is the same across all 126's, but this would require verification in the EPC. Presuming that it is the same, you would need to obtain the engine side motor mount arms for a 126.120 and put them on the 123 engine. You would likely need a set of 126.120 engine shocks. Hopefully the transmission output flange would not move much, so you could possibly reuse the SDL's driveshaft. You would need to investigate rear end ratios; the 126.120 may have a different ratio than the 126.125. This might be problematic if there are sensors for traction control or similar mounted into the diff housing. You would want to make sure that the 123's engine was configured for the newer "amp-less" tach; the tachometer in a 126.120 and a 126.125 are the same. You would need to use 126.120 radiator/heater hoses, 126.120 engine-side AC hoses and 126.120 wiring harness bits. The oil cooler lines may differ (126.120 v 123.133), and there may be a difference in the oil filter housing. You would need to check the vacuum pump-brake booster lines (126-123 engine side, 126.120-126.125 body side). You may need to procure a larger alternator that has the same mounting pattern; I believe there were some Saabs and Volvos that use units that can be made to work with a pulley swap and some harness modifications. The 1985 126.120 transmission may use a different valve body or modulator than the 123 unit. (pre-blue UFO transmissions DEFINITELY differ. Expect some fun with vacuum connections and wiring harness connections. You may also need to procure a 126.120 exhaust system and modify it (add length as required) to permit it to fit into the longer wheelbase chassis. You would need to strip out some electronics (some of the idle speed cruft...) I would start my research in the EPC, comparing 1985 w126.120 and 1985 w123.133 parts in the engine compartment (as outlined above) and w126.120 v w126.125 parts (engine crossmember, noise encapsulation panel, etc) It would be a fun project, IMHO, although I'd rather do a 126.125 (or 210.020) drive train engine in a 123.133 chassis myself... -- John W Reames jream...@verizon.net Home: +14106646986 Mobile: +14437915905 On Apr 22, 2011, at 8:52, Dieselhead <126die...@gmail.com> wrote: > In theory, it should be possible, because the first series of 126 had the > OM617 as an engine option for certain parts of the world. > > you would want to keep the engine and trans matched. > > you may need a torch, a welder, a machine shop and a stack of cash to make it > happen. THen again, if the engine compartment and trans mount area did not > change between series one and series two, then it may be an almost bolt up > change. I've not heard of anyone doing that. > > A 126 to 126 swap would be easier most likely. You may need a 126/617 > combination to grab some things from, like fan shroud, it almost certainly is > different. > > x > > >> Is it possible to swap in a 5 cylinder 1985 300D turbodiesel engine into a >> 1986 300SD L with the 6 cyl. turbo? If not, what about an entire 1985 drive >> train? >> _______________________________________ >> http://www.okiebenz.com >> For new and used parts go to www.okiebenz.com >> To search list archives http://www.okiebenz.com/archive/ >> >> To Unsubscribe or change delivery options go to: >> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > > _______________________________________ > http://www.okiebenz.com > For new and used parts go to www.okiebenz.com > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com _______________________________________ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
