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#1
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OM617.952 transplant into a '78 300cd - tranny issues, other considerations?
I have a 1978 300cd with a very tired motor and a suspect tranny. There is a chance I can trade one of my parts cars for an intact driveline from an '82-'83 w126 300sd (car was junked due to rust years ago and the vendor can't remember exactly what year it was).
From my understanding, not all the transmissions used in the w126 will fit into a w123. Am I correct? If so, does anyone have any guidance on year(s) or model number(s) that will fit? Also I would assume that I will also need to install from a later, turbodiesel w123: - "horns" for the motor mounts - oil cooler lines - air cleaner assembly - and what else? If you can point me to a fellow lister, or an existing thread, much appreciated. Cheers mac
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Mac 2002 e320 4matic estate│1985 300d│1980 300td Previous: 1979 & 1982 & 1983 300sd │ 1982 240d “Let's take a drive into the middle of nowhere with a packet of Marlboro lights and talk about our lives.” ― Joseph Heller, Catch-22 |
#2
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Im doing a swap of a 82SD motor to my 82CD. hold on to your motor, there are several differences i am finding on mine which may help guide you
oil filter housing (different pressure sender type) turbo oil supply line oil cooler line bracket near driver motor mount AC lines since your coupe is non turbo Im not sure what applies, Im also replacing any common parts that are better on the SD motor I am also replacing the turbo drain, the dip stick orings and the air cleaner drain orings while its out
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1982 300CD Turbo (Otis, "ups & downs") parts for sale 2003 TJ with Hemi (to go anywhere, quickly) sold 2001 Excursion Powerstroke (to go dependably) 1970 Mustang 428SCJ (to go fast) 1962 Corvette LS1 (to go in style) 2001 Schwinn Grape Krate 10spd (if all else fails) |
#3
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The 84 tranz is all its own for 84 sd and are different that all others--yours would be common , i got a 722-309 from a 84 euro gasser ce thats also used in the SD so perhaps the other 309's are pretty do able in your swap.
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#4
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Why don`t you use the 300CD (W123) trans with the 300SD (W126) engine? The W126 engine is going into the 300CD, right?
The W123 uses a mechanical speedometer, and the W126 uses an electric driven spedometer. Charlie
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there were three HP ratings on the OM616... 1) Not much power 2) Even less power 3) Not nearly enough power!! 240D w/auto Anyone that thinks a 240D is slow drives too fast. 80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works |
#5
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Couple of reasons: I was told before that a trans out of a non-turbo would not survive there; and the trans itself is kind of suspect (weird noises, never had that before with a Mercedes trans). But it shifts ok.
Tks
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Mac 2002 e320 4matic estate│1985 300d│1980 300td Previous: 1979 & 1982 & 1983 300sd │ 1982 240d “Let's take a drive into the middle of nowhere with a packet of Marlboro lights and talk about our lives.” ― Joseph Heller, Catch-22 |
#6
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bump
Anyone got more info?
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Mac 2002 e320 4matic estate│1985 300d│1980 300td Previous: 1979 & 1982 & 1983 300sd │ 1982 240d “Let's take a drive into the middle of nowhere with a packet of Marlboro lights and talk about our lives.” ― Joseph Heller, Catch-22 |
#7
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Not sure about compatibility, the mounts have different part numbers.
The info I have calls an SD engine a 617.951. The 617.952's were in 123's.
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