[nelson1248]

Originally Posted by hulkgreen

UNLESS YOU JUST HAVE MONEY TO BURN ON FUEL ...... YOU WOULD BE BETTER OFF WITH A DIESEL !!!

IF I DRIVE IT " NORMALLY " I SHOULD GET 32 MPG AND IF I DRIVE IT LIKE I STOLE IT I SHOULD GET 23 MPG !!!

I HAVE HEARD OF SOME OF tHE CUMMINS GUYS IN 2 WHEEL DRIVE PICK UPS GETTING IN THE 40 MPG RANGE !!!

man i have never heard of anyone getting that good of gas mileage on a diesel engine!

my dad has an F350 and only gets 11 MPG

where in the world can i find a diesel engine to fit into my rig? if its that good ill definitely do the swap!

[rficken42]

i am very impressed. cant wait to see how it turns out. i may follow in your thread and do a diesel swap of mine own.

[hulkgreen]

Originally Posted by 12b4420

This is a compacted list of everything that I’ve learned on 87 jeep wrangler (617 coversion) - Diesel Bombers
It was the fuel economy that sparked the interest in the Mercedes 5cyl diesel into a Jeep Wrangler swap. I have seen a lot of interest in this project and it can be done.
Wrangler with 3.0 td turbo charged Mercedes diesel engine mated to ax-15 Jeep transmission. The engine is completely mechanical and has no computer making it easier to perform the swap. Your able to transfer all sensors from the Jeep to the Mercedes engine so even the engine gages work as they should. The fuel pump is mechanical and not electric; using the same Jeep fuel tank only making the opening for fuel nozzle bigger. (You may have to go with older fuel tank if it will fit from jeep 87-91.)
The engine mounts must be modified using the original Mercedes motor mounts and bushings. All that is needed is cut off old brackets from jeep. Make new brackets, reinforce them and welded them to the frame.
You reuse the stock jeep radiator. It looks like the jeep has enough room to fit an intercooler in front of radiator. Maybe look at the Volvo turbo intercooler. The power steering hoses were soldered to Mercedes fittings and your able to use original steering gear box.
The vacuum pump needs to connect to your brake booster. Take the original MB line that goes all the way to booster and remove the plastic line and use a rubber hose with a vacuum t connector and put a one way vacuum check valve and connect it all to the booster. The t fitting you will need to connect the rest of your vacuum system on your engine as well as some of the jeep stuff that runs off of vacuum.( fuel pump shut off,some front diff’s)
You will use the stock 4.0L flywheel and starter. Take the stock jeep flywheel and make it fit the Mercedes engine. MB have 12 holes and jeep has 6. Weld the holes and redrill them to fit Mercedes crank.
(measure twice drill once) Use the bolt hole spacer plate that MB has to mock up bolt holes. (When replacing the flywheel, the balance of the engine should be maintained as much as possible.)
Use the stock needle pilot bearing from jeep and also use a ford pilot bearing #14656 (Advance auto parts Ford 1968-86 302,351,400 cu.in.) It fits perfectly into Mercedes crank (outside diameter) then you drill the inside to fit the jeep needle bearing (measure twice cut once)
And as for the adapter you have to be patient and do lot of measuring. You make the adapter use nothing special; just stuff in your garage torches, drill, grinder, welder etc...Use 5/16 steel plate for the
adapter which makes the transmission input shaft fit perfectly into the pilot hole. After finding the center shaft hole use a hole transfer tool and transfer 3 bell housing holes and drill them into 5/16 steel plate. Then put the bell on it and drill the rest of the holes that are used.( Don’t drill bolt holes for starter just yet to be assured your 100% aligned.) Then move over to center of MB block and transfer the dowel pin holes to the 5/16 plate (measure twice drill once) insert the dowel pins and use original MB adapter and drilled rest of the holes. You will need to have 6 holes drilled for engine side (4 bolt holes and 2 dowel pins if I remember correctly)
You want to change the starter over to the Driver side to keep it away from the turbo heat you can use a 97 Dodge Dakota either 3.9 V6 or 5.2 V8 BELLHOUSING .... BOTH Bells will mount the starter to driver side and keep it away from the turbo'd exhaust manifold and they have all necessary provisions to mount the clutch ( just like stock JEEP ) You will need the bell and ALL associated clutch parts if you donor is post 1994. It is a direct BOLT-ON to either a nv3550 or ax 15 transmissions and the WHOLE REASON this is suggested is to move the starter over to the driver-side to keep it out from under the turbo and exhausts HEAT !! Extend the starters wire’s by 12 to 18 inches ( under the oil pan ) and you are good to go !! You use the stock 4.0L flywheel and starter it just moves it to the driver’s side away from the turbo heat ($75 dollar salvage yard bell housing)
It has been done without the Dakota flywheel but you must move the starter from original position upwards toward exhaust manifold to clear bulky Mercedes oil pan, and must make new cutout in bell housing to fit starter. (you can see pic of this on)
Read more: 87 jeep wrangler (617 coversion) - Diesel Bombers (Look at the last pic on the first thread and you will see that the starter was moved)

The engine is a OM617 turbo diesel 630lbs wet should be 123HP and 170ft*lbs

WOW YOU FIGURED OUT WHERE I GOT MY INSPIRATION FOR THIS THREAD AND ENGINE SWAP !!! IF YOU NOTICE ...... I AM THE ONE WHO SUGGESTED USING THE DODGE DAKOTA BELL ( where i get basically ridiculed ) WHICH MOVED THE STARTER TO THE DRIVER SIDE OF THE VEHICLE AND AWAY FROM THE TURBO'S HEAT !! MY MACHINIST HAS SOME DIFFERENT IDEAS THAT MAKE THE SWAP GO EASIER AND COULD MAKE IT EVEN EASIER !!!

ANY WAYS ....... YOU WILL NOTICE THE THE USER " HULKGREEN " ON DIESEL BOMBERS IS THE SAME USER " HULKGREEN " ON THIS FORUM !!!

Also after researching it seems that " vlado " the original poster @ Diesel Bombers seems to have used the peugeot transmission bellhousing cause it looks absolutely nothing like my 94 Jeep AX-15 Bellhousing !!

[91NDJeep]

Great build idea....!

My bro-in-law is a Mercedes technician and the techs at the shop are always looking for good deals on 300Ds. They love them. My sis doesnt "get it" as she likes the new stuff but for the wrenchers...its widely respected as one the of the best engines ever.

Hope it works out for ya.

[73Dart]

Originally Posted by nelson1248

man i have never heard of anyone getting that good of gas mileage on a diesel engine!

my dad has an F350 and only gets 11 MPG

where in the world can i find a diesel engine to fit into my rig? if its that good ill definitely do the swap!

I have a 96 Ram 2500 Cummins diesel and pull down 18 city and 20-22 highway.

[UbelGeist]

My 96 F350 7.3 diesel consistently 20-22mpg. That was with a 3.73 gear set and a manual transmission.

[Unlimited04]

freakin' awesome man! can't wait to see how this looks when your done! those mercedes 3.0L's are bombproof and then some

[h20squirter]

Originally Posted by nelson1248

man i have never heard of anyone getting that good of gas mileage on a diesel engine!

my dad has an F350 and only gets 11 MPG

where in the world can i find a diesel engine to fit into my rig? if its that good ill definitely do the swap!

i'm driving a 2007 GMC Sierra 2500HD, my Dmax is getting 17 around town and 19-20 on the highway. hell, towing a 10k trailer on the highway i still get 15-16.

[levergun]

Originally Posted by nelson1248

man i have never heard of anyone getting that good of gas mileage on a diesel engine!

my dad has an F350 and only gets 11 MPG

where in the world can i find a diesel engine to fit into my rig? if its that good ill definitely do the swap!

That truck must get beat pedal to the floor!!!! Most F350's w/ the deisel are capable of 22-23 regular driving. I got 18 on a 800 mile drive towing a 92 F-250 behind my buddies 06 F-350. My 90 cummins W-250 That is being used for my swap got 22 all day long w/ 35/s and towing a 5K hay trailer I still got 18-19!!!!!

[73Dart]

Originally Posted by h20squirter

i'm driving a 2007 GMC Sierra 2500HD, my Dmax is getting 17 around town and 19-20 on the highway. hell, towing a 10k trailer on the highway i still get 15-16.

When my truck was still an auto it would get 12-13 pulling 12k now with the manual it is pulling 14-15 pulling the 12k 5ver.

[50rck]

How is someone only getting 11 mpg w/ a diesel? My 99 F250 7.3 got 23 once on a 5 hr trip. Mostly I got around 17 with a mix of heavy city and back road country driving. And that was w/ 33's. The 07.5 Durmax I have now gets about 12 to 14 pulling a 14k 5th wheel toy hauler w/ 2 Harley's. My rebuilt 91 Jeep 4.0 is now getting about 18 between city and country roads. But I drive that like a grandma, trying to get another 235,000 on it again.

[hulkgreen]

Originally Posted by 50rck

How is someone only getting 11 mpg w/ a diesel? My 99 F250 7.3 got 23 once on a 5 hr trip. Mostly I got around 17 with a mix of heavy city and back road country driving. And that was w/ 33's. The 07.5 Durmax I have now gets about 12 to 14 pulling a 14k 5th wheel toy hauler w/ 2 Harley's. My rebuilt 91 Jeep 4.0 is now getting about 18 between city and country roads. But I drive that like a grandma, trying to get another 235,000 on it again.

Imagine driving your YJ like that and pulling down 32 mpg !! With the stuff I am selling off the left over Mercedes donor car ..... this ( including machining adapters ; not making them myself ) is gonna cost less than $1200 !!! But my buddy is bring over his portable welding machine to weld in the motor mounts !! SO; no cost there ..... just a couple beer and a few laughs between friends.

Hell it was gonna cost me more for a remanufactured long block at O'reilly than to do this swap !!

THe trick is to find a donor car to rob the small gidgets and gadgets from !!

[WCoon]

Originally Posted by nelson1248

man i have never heard of anyone getting that good of gas mileage on a diesel engine!

my dad has an F350 and only gets 11 MPG

where in the world can i find a diesel engine to fit into my rig? if its that good ill definitely do the swap!

Are you sure that is the Powerstroke and not the V10? If he has a V10 I could definitely see 11 MPG.

[Smithy]

Originally Posted by nelson1248

man i have never heard of anyone getting that good of gas mileage on a diesel engine!

my dad has an F350 and only gets 11 MPG

where in the world can i find a diesel engine to fit into my rig? if its that good ill definitely do the swap!

There's your problem, gas doesn't do too well in a diesel engine

I kid, I kid....

Brandon

[Ironworker709]

I have a 2000 F250 super duty 7.3 intercooled 4x4 with a hypertech II programmer and 4" borla stainless straight through muffler,no cat on a 2000 model,and a K&N filter,...got 18MPG towin the YJ on 12 hour trips,get 23 all day long no towing.