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#1
08-29-2011, 07:36 PM
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Interchange transmissions between automatic and stick 240d's
As many of you know I have been considering swapping a 300d engine for a 240d engine. As luck would have it a running, less rusty 85 240 with leather and a sunroof has fallen into my lap for 500.00. Only issue is that it is an automatic. Will the 83 4 speed bolt without issue to the 85 automatic without any issues ? Somewhere I recall some crankshaft change in 83 or so but my brain is foggy. Use the auto diff with the stick or the 4 speed ? I know about the radiator and linkage differences and I believe the pedal cluster is plug and play. I checked to forum archive with no luck.
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92 300e 205 k miles decent -wife's ride 91 300 TE many upgrades and very clean-Junk yard rescue ( son's "hot rod") 68 250 s Low rust great shape 91 300e 236k ( rear ended and sheared metal subframe mounts /sway bar ) 85 300TD 310k Below have moved on 77 300d 36k miles one elderly owner! Now in Ca fully restored 79 300 sd 49k miles( time capsule clean )sold and still in ohio 66 230s new at factory "das boot" gone. 93 190e 2.6 crunched-hard no injuries 69 220d rusted away 
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#2
08-29-2011, 09:15 PM
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Bolt in swap. No worries especially if you start with two complete cars.
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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.  [SIGPIC]..I also have a 427 Cobra replica with an aluminum chassis.
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#3
08-29-2011, 09:54 PM
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Thanks- that's what I thought. Should I swap the diff as well or keep the auto one . I know they are different. Would I notice much difference in MPG ?
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92 300e 205 k miles decent -wife's ride 91 300 TE many upgrades and very clean-Junk yard rescue ( son's "hot rod") 68 250 s Low rust great shape 91 300e 236k ( rear ended and sheared metal subframe mounts /sway bar ) 85 300TD 310k Below have moved on 77 300d 36k miles one elderly owner! Now in Ca fully restored 79 300 sd 49k miles( time capsule clean )sold and still in ohio 66 230s new at factory "das boot" gone. 93 190e 2.6 crunched-hard no injuries 69 220d rusted away
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#4
08-29-2011, 10:04 PM
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... you have a 300D STICK and you want to put the trans into a 240? (also I thought 83 was last year for the 240... except euro grey market...)
this certainly will in NO way be a direct bolt in swap...
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!!  1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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#5
08-29-2011, 10:13 PM
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The 240 4 spd will bolt right up to a 83 300D 617 engine.
The 83 300D will have a 3:07 Diff and the 85 240D (that is a super rare one) will have a 3:69 diff. be good to use the 3:07 and also swap in the spedo along with it. spedo`s are geared to the Diff. use a 240 auto X mount for the trans. and will have to shorten the shift rods, and the front section of the driveline. 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
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#6
08-29-2011, 10:20 PM
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please educate us with exactly what you have, and what you want to put the manual into.
thanks!
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!! 1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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#7
08-29-2011, 10:25 PM
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Quote:
The driveshaft will need to be replaced with one from a 240D automatic and the 3.07 differential will be far too tall for an OM616. A 3.46 is the tallest a 240D can manage without a reduction in economy.
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#8
08-29-2011, 10:30 PM
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confusion is why threads should be added to, not new threads created... I linked the original thread to this discussion for better understanding.
as long as both cars are 240, and you move everything that's connected to the manual box to the auto car, it's a direct parts swap. no cutting or issues. I'd get all new shifter bushings and mounts personally. Repowering 240d with non turbo 5 cyl
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!! 1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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#9
08-29-2011, 10:32 PM
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this thread should be deleted, its just a rehash of his original thread.
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#10
08-30-2011, 06:24 PM
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sorry for the confusion, I guess I wasn't clear. As I was contemplating swapping the 300d motor into the 240 I found a better, less rusty 240 that is an automatic. I want to put the 240 4 speed into the automatic 240 and I wanted to know about swapping the diff. -should I use the auto or the manual ? Sorry again as i don't want to annoy the knowledge bank of this list
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92 300e 205 k miles decent -wife's ride 91 300 TE many upgrades and very clean-Junk yard rescue ( son's "hot rod") 68 250 s Low rust great shape 91 300e 236k ( rear ended and sheared metal subframe mounts /sway bar ) 85 300TD 310k Below have moved on 77 300d 36k miles one elderly owner! Now in Ca fully restored 79 300 sd 49k miles( time capsule clean )sold and still in ohio 66 230s new at factory "das boot" gone. 93 190e 2.6 crunched-hard no injuries 69 220d rusted away
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#11
08-30-2011, 09:42 PM
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A 240d will have the same diff whether it is stick or auto.
__________________
[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual. [SIGPIC]..I also have a 427 Cobra replica with an aluminum chassis.
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#12
08-30-2011, 09:44 PM
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Quote:
__________________
[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual. [SIGPIC]..I also have a 427 Cobra replica with an aluminum chassis.
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