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Old 11-08-2011, 04:05 PM
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PhatFJ PhatFJ is offline
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Join Date: Apr 2008
Location: Trinidad, CO
Posts: 631

Originally Posted by Overlander View Post
Another vote for Mercedes Benz OEM617 - that is a solid motor. I had an MB 300D for several years and regret selling it (for another Mercedes). Anyway, these engines have cast iron heads, bullet proof IP pumps that will suck glycerine from your tank (i.e. can run on WVO, used hydraulic fluid, used motor oil, biodiesel and other concoctions). I've run BioD in mine and it was super quiet.

The thing to check with this engine, however is the power curve - I believe they produce most of their torque in the upper range of the curve (around 2800-3000 rpms) - good for highway cruising but the low end grunt may suffer as a result. Again, super engines - just not sure about putting it in a crawler.

Good luck -
James, thanks for the info!! I was curious about the power curve, I think with the low end gearing I will be ok. How is the idle on the OM617? just thinking if I have to start in gear (low/low) on a hill, my 350 will start just fine but there is a surge as the IAC (idle air control) kicks in for the idle and you need to be ready for it. Thanks again for the response..
1975 FJ40 Restored, (sold) back to Japan
1972 FJ40 project X2
1989 FJ62
1985 FJ60
1970 FJ40 - trail rig ARB's front and back.
1995 4Runner MB Diesel conv.
2000 4runner
2007 FJC BUILT (Sold)
2004 GX470 Way Bad, Lifted and moded just right...

Trinidad, CO
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