Mercedes OM617
#11
08-30-2008, 09:26 PM
0m617
Has anyone else played with the Mercedes OM617 I-5 3.0l turbo diesel engines?
In 2005, I swapped one from a '78 300SD into a '88 Jeep Comanche. Very strait forward swap. I-5 engine fit very well into the engine bay since it was designed to accept the 4.0l I-6 gas motor. Power output was good for vehicle weight and economy numbers were in the high 20's. I was in a rush to get it on the road, so it didn't turn out aesthetically like I would have preferred, but it was the first go at it, and I have now learned what to/not to do.
Now working on a conversion for my wife. Repowering a '91 Wrangler with the same motor. But having transfer case selection issues. Making a 2wd Wrangler is out of the question! I won't consider separating the motor from it's matching auto tranny, either, as it is virtually bulletproof. So that puts me trying not only find a divorced transfer case, but also dealing with the short drive line. Current plans are to stretch the jeep, and/or simply move the rear axle back. I can move it back 10" simply by using Dodge Dakota rear leaf packs. We shall see how it goes! Here's the new victim:
In 2005, I swapped one from a '78 300SD into a '88 Jeep Comanche. Very strait forward swap. I-5 engine fit very well into the engine bay since it was designed to accept the 4.0l I-6 gas motor. Power output was good for vehicle weight and economy numbers were in the high 20's. I was in a rush to get it on the road, so it didn't turn out aesthetically like I would have preferred, but it was the first go at it, and I have now learned what to/not to do.
Now working on a conversion for my wife. Repowering a '91 Wrangler with the same motor. But having transfer case selection issues. Making a 2wd Wrangler is out of the question! I won't consider separating the motor from it's matching auto tranny, either, as it is virtually bulletproof. So that puts me trying not only find a divorced transfer case, but also dealing with the short drive line. Current plans are to stretch the jeep, and/or simply move the rear axle back. I can move it back 10" simply by using Dodge Dakota rear leaf packs. We shall see how it goes! Here's the new victim:
runs great and early s ford truck had the divorced transfer cases
#13
09-17-2008, 07:23 AM
As for the xfer case, I've been talking with a fellow named Luke at 4x4labs.com. He's been talking about making a flywheel and bell housing adapter for the 617 motors to mate to GM transmissions. If all goes well on his end, I hope to see one of these adapters in person. That will make my plans much easier. I have alot of access to GM 4x4's that are in non running condition for parts.
Got any photos Robby?
#14
09-28-2008, 02:40 PM
sorry but the best transfer case for you would be from those litlle suzukis samuray not expensive at all and divorced like you wanted it
i have also a brazilian 3.9 cummings f250 verry nice totally original 90xxx miles on it
classic.70s@hotmail.com
i have also a brazilian 3.9 cummings f250 verry nice totally original 90xxx miles on it
classic.70s@hotmail.com
#15
09-28-2008, 02:57 PM
this is the engine in the right place on the dakota you also need a litlle fuel pump to pump diesel for the injector pump goin uphills and a center hanger on the shaft you cant only put a u joint on your tranny what you have to do is reproduce the picture of an mercedes very strait it no u joints and redoit on the dodge dakota listen good for it clubcab and extended cab only or f 150 long bed no chassis cuts or anything engine sits a litlle bit to the passenger side so you can change the oil the intercooler is from a volvo and the engine mounts only remove original ones and do a flat plate with 4holes like the original run a strait peace of metal goin to the old dakota mounts reinforce it the rubber i used model t from ford give you a litlle more vibration like real mercedes rally cars superchargers are good to but reduce the amount of psi max 13 more then that you will burn this engine you can take amoust 200 hp from this engine never overheat it
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#16
01-21-2009, 11:16 PM
Sami cases have a High range reduction. That would increase the rpm's in 2 hi. ford 205's are big and heavy. if you can use a right hand drop case divorce mounting a Toyota gear drive case would be a lead pipe cinch! Turn the ears off of the 3 bolt flange and the center out of a Toy multi pattern pinion flange. Weld them together insuring its lined up square. Roll on in a OM617 motivated YJ!
#17
02-19-2009, 02:43 PM
Im glad I finally found some folks with automotive know how!
I somehow got the idea to put a MB 617 I-5 turbo diesel in a 2000 S10 pick up truck. It was a huge project. I also mated it with a 95' F-150 5 speed manual tranny( it actually worked out well!). Shes on the road and Ive got almost 400 miles on her. Does 75 on the highway no problem gets up and goes too. With the straight piped 5" exhaust out of a chrome stack in the bed it sounds bad ***. Any questions about the tranny adapters i had to machine let me know.
Check out the pics
Truck pictures by hevyfoot_blacksoot - Photobucket
Does any one know tricks on how to pull more horses out of this engine? injector pumps? turbos? injectors??
I somehow got the idea to put a MB 617 I-5 turbo diesel in a 2000 S10 pick up truck. It was a huge project. I also mated it with a 95' F-150 5 speed manual tranny( it actually worked out well!). Shes on the road and Ive got almost 400 miles on her. Does 75 on the highway no problem gets up and goes too. With the straight piped 5" exhaust out of a chrome stack in the bed it sounds bad ***. Any questions about the tranny adapters i had to machine let me know.
Check out the pics
Truck pictures by hevyfoot_blacksoot - Photobucket
Does any one know tricks on how to pull more horses out of this engine? injector pumps? turbos? injectors??
#18
02-19-2009, 08:06 PM
The plungers in the pump are the rate limiting step. Seems like the next plunger up is much too large. Figure out if you have a 6.5mm pump (or 5.5) Most pump shops can only come up with 10mm replacements.(7.5-8 Ive heard is ideal) Adjustments can be made with the boost reference can. (like an ALDA compensator) The small T-4 compressor Housing and Wheel on the factory Benz Hot side with a small intercooler will help tremedously. Same EGT warnings you have heard before! Them pistons are real spendy.
#20
02-20-2009, 06:02 AM
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divorced transfer case
have you considered a transfer case out of early eighties datsun 4wd pick ups?
they used three drive shafts.
downside is that it seems that even when in two wheel drive, they would make the power go through a set of gears. instead of straight through.
that seems to eat power and fuel in 2wd. but otherwise a very tough little box
ocd
they used three drive shafts.
downside is that it seems that even when in two wheel drive, they would make the power go through a set of gears. instead of straight through.
that seems to eat power and fuel in 2wd. but otherwise a very tough little box
ocd
