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Old 02-17-2017, 07:32 AM
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Zorm Zorm is offline
304 AMC
Join Date: Apr 08, 1997
Location: Pensacola, Fl.
Posts: 1,884
Mercedes diesel 603 engine

Saw that first Mercedes diesel G-Wag swap fizzile out, any others? Found a 603 engine and a OM617 out of a 81 Mercedes

83 Cherokee 4dr WT(axles)
4" Rusty's lift, 32x11.50s,
4.6 stroker modified 4.0 MPFI engine

still hunting a Triumph TR6
2007 SeaRay 205
71 F-250 Camper Special

HE guides my path, forgives me when I stray and lights my life.
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Old 02-17-2017, 10:10 AM
joe joe is offline
Join Date: Apr 28, 2000
Location: PNWet, USA
Posts: 21,905
For a FSJ swap I wouldn't bother with the 617. Wonderful little dsl for their intended use but IMHO not enough poop for a 4500 lb car.
"Don't mind me. I'm just here for the alibi"
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Old 02-17-2017, 10:32 AM
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cma cma is offline
Master Mechanic
Join Date: Jan 26, 2012
Location: Austria
Posts: 1,465
The OM 617 does have roundabout 88PS and Torc 172 NM at 2400. I have driven the smaler engine, the 240 Diesel, 4 Zylinder with 72 PS. It is no race engine...
I am with Joe, think for a 2 Ton Light Truck it could be a little bit to small...

But: both engine are very well runners....

Member, FSJ Prissy Restoration Association

Note: Everyone has a plan until they get punched in the face. - Mike Tyson

Cherokee Chief Laredo, 360 cui, selec trac, black, 12/1982

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Old 04-13-2018, 05:30 AM
BillyBob535 BillyBob535 is offline
258 I6
Join Date: Jun 27, 2002
Location: Shallotte, NC
Posts: 373
I got the chance to experience a wrangler with the OM617 in it. It was geared correctly but just did not have adequate power (I am used to a 4cyl auto YJ and the 617 was a slug compared to it). I had originally intended to go that way until I experienced one first hand. When I decided to build a diesel FSJ instead of a YJ I knew the OM617 (or OM603) would not cut it. I did some research and found the OM606. Its a straight six 24v aluminum head DOHC diesel and weighs about the same as a gas V8. Its powerband is up higher like a gas motor so you don't have to run super high (numerically low) gears with it.

I am in the process of collecting parts to put an OM606 in a 4 door 76-83 Cherokee or Wagoneer. I am going to use a 98/99 turbo OM606 from an E300 with a Dieselmeken mechanical injection pump and possibly a different turbo (250-350 HP depending on choices). I am going to buy the mercedes4x4 OM606 to AX-15 adapter (.750 pilot version) when it comes out in a couple weeks, re-drill it for the OM648 rear sump oil pan, and notch it for the CJ hydraulic slave cylinder that bolts to the AMC bellhousing. I bought a CJ T176 bellhousing, the Advance Adapters Dodge NV4500 to AMC bellhousing adapter, and a 98 Dodge 2500 gas V8 NV4500. The long input of the Dodge NV4500 and the 2 adapters will space the tranny back similar to the spacers AMC used with the T177/T178. I will be running either the Dodge NP241DLD with an SYE OR the 80+ FSJ NP208AM (I have both just not decided yet). I am going to look at a set of 98+ 24v cummins Dodge motor mounts bolted to flat plates which are then bolted to the block. I will just have to have a welder come in and fab some simple mounts on the framerails.

I should end up with a simple, easy to maintain, and relatively fuel efficient powertrain that does not depend on any electronics (beyond glow plugs and starter - I live at the beach and on a hill so both can be bypassed if necessary). If it gets beyond 20MPG I will be very pleased. It is going to be an expensive project ($6000 - $7000 depending on turbo and transfer case decisions) but I won't have a rattletrap cummins 4BT, the weight penalty of a 6BT, or the lack of power of a 6.2/6.5 GM diesel.

Good luck on your swap
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Old 04-18-2018, 04:28 AM
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81jseries 81jseries is offline
232 I6
Join Date: Aug 31, 2001
Location: MD
Posts: 131
My daily driver is a 98 om606 and it has plenty of power for a relatively large car. I've driven the older 0m617 cars before and they are definitely slugs. I too have been eyeing that new 606/ax15 adapter for a future project and would like to see a build thread BillyBob.
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