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-   -   617 into 123 240D? (http://www.peachparts.com/shopforum/diesel-discussion/306913-617-into-123-240d.html)

sixto 10-15-2011 09:04 PM

617 into 123 240D?
 
What is the effort involved in swapping a 617 into a W123 240D MT? Does a 617 drop right in on does the transmission have to move aft so the mounts align with the frame?

Sixto
87 300D

vstech 10-15-2011 09:38 PM

everything has to move back one cylinder length...

vstech 10-15-2011 09:39 PM

it's pretty simple if you have access to a 300 for parts swap...
lemme know if you need anything!

sixto 10-15-2011 10:13 PM

It's a mental exercise to determine whether it's more work and parts scrounging to convert a 300D to MT or a MT 240D to 5 cylinders. I hear things like Euro tail housings and shortening prop shafts which no shop wants to do. Avoiding such things is worth a few more hours of wrenching to me.

Sixto
87 300D


Sixto
87 300D

t walgamuth 10-15-2011 10:44 PM

MT?

charmalu 10-15-2011 10:47 PM

Quote:

Originally Posted by t walgamuth (Post 2811043)
MT?


Manual Transmission

Charlie

charmalu 10-15-2011 10:54 PM

Either way it is a little work.

4 spd in a 300D. have to add the peddles, Manual FW and get it match balanced. clutch disc and pressure plate, throw out bearing and pilot bearing. add the manual shifter, shorten the 3 shift rods, shorten the DL and have it balanced.

Use the front DL from a 240 and have it shortened.
Use the trans X mount from a 240 auto.

South Bay DL in San Jose will to the MB DL.

300D engine to a 240D. just have to move the trans back, shorten the DL, add the 240 auto X mount. and add the 300D radiator, oil cooler and expansion tank.

Might want to use a higher gear ratio differential. the 240 uses the 3:69. maybe a 3:07 or a 2:88.


Charlie

Stretch 10-16-2011 04:41 AM

LutzTD has done quite a bit of investigation into prop shaft lengths so contact him for the good part numbers and lengths.

You'll probably need a different transmission mount cross member as well... and then don't forget the final gearing on the diff...

t walgamuth 02-18-2012 08:51 AM

I'd say the tranny conversion is simpler but not by a large margin.

aaa 02-18-2012 10:01 AM

Quote:

Originally Posted by sixto (Post 2811036)
I hear things like Euro tail housings and shortening prop shafts which no shop wants to do. Avoiding such things is worth a few more hours of wrenching to me.

Shortening the driveshaft is inevitable regardless of which way you do it. Maybe you can snag a stock MT 300D one off ebay.de or something. Whats a euro tail housing?

PackerEdgerton 02-18-2012 12:37 PM

My understanding is that you'll also want a proper flywheel from a Euro 300D if you can get it. That would a little trickier. The Euro MT flywheel would be heavier to account for the extra cylinder. The lighter flywheel of the 240D would make for a conversion with more vibration, etc.

Sincerely,

PE


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