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+--- Thread: W123/126 Engine+Transmission Differences (/showthread.php?tid=2846)
W123/126 Engine+Transmission Differences - 300SD81 - 08-06-2011
I'm in the process of swapping an engine and transmission from a W123 300D into a W126 300SD. What are all the parts that will need to be swapped over? So far I've found:
Engine mount arms
Transmission tailshaft
Manifolds and turbo (new engine is cali)
Oil filter housing (do I need to swap the whole thing, or just the back plate?)
Both are out of the car right now. What am I missing? I'd like to get this thing running again by monday. The transmission main pump died on me...
RE: W123/126 Engine+Transmission Differences - 300SD81 - 08-07-2011
Turns out my spare trans is a 722.4... Never really looked at it since it came with an engine I bought and I never thought I'd need it. Just going to drop everything in and deal with the electrical problems later. I know its a weaker trans, but I'm sure it'll last for a little while at least. Don't have time to source another transmission and I need my car.
RE: W123/126 Engine+Transmission Differences - 300D50 - 08-07-2011
Just the back section of the filter housing iirc.
RE: W123/126 Engine+Transmission Differences - Hercules - 08-07-2011
Possible upper pan,turbo drain.
RE: W123/126 Engine+Transmission Differences - aaa - 08-07-2011
(08-07-2011, 04:52 PM)Hercules Possible upper pan,turbo drain.
Haven't had hiccups related to those.
RE: W123/126 Engine+Transmission Differences - MB TECH - 08-07-2011
does the 126 have SLS rear suspension, if it does the cylinder head will need to be swapped over for the suspension hydraulic pump.
RE: W123/126 Engine+Transmission Differences - 300SD81 - 08-07-2011
The back plate of the oil filter housing is different, so I'm gonna have to swap the whole thing... Anyone know where I can get a gasket ASAP? Autozone and Advance Auto don't have it.
Turbo drain looks fine, the new engine is missing the oil separator drain, but I had a draft tube anyways...
I'm going to end up doing this again in a couple months, since I'm sticking a 722.4 in there now, anyone have a spare 722.3 for sale? Or maybe this is the perfect excuse to finally do the 722.6 swap I've been wanting to...
RE: W123/126 Engine+Transmission Differences - winmutt - 08-08-2011
If you are at school, no. If you are intown, rusty @ buymbparts.biz.
RE: W123/126 Engine+Transmission Differences - Captain America - 08-09-2011
Tail housings wont swap anyway.... I tried it
RE: W123/126 Engine+Transmission Differences - aaa - 08-09-2011
I've been able to swap tailhousings. Capt had trouble with the speedo gear though. But trying to swap a 722.4 tailhousing will definitely not work, the 722.4 tailhousing is smaller.
RE: W123/126 Engine+Transmission Differences - 300SD81 - 08-14-2011
Got it in... I just don't have a speedometer, but I have GPS on my phone.