Detroit Diesel 71 - 92 series fans

Ran a truck with one it and did plenty of heavy hauls with it, worked well for me.

 

Ehh, 8V92T is not the best choice. 6V92T, 8v71, 12v71, 6L71, etc. The 8V92T's from my experience got horrid fuel mileage and have mechanical issues, depending on how the owner took care of them previously. Cooling, after market parts, the wrong oil(15W40 instead of SAE 40) didn't help either.

 

Just feed it rod and main bearings every 150000 miles. When right they will RUN.

 

Loads I hauled averaged over 75K and the engine ran fine, gross around 110-125K.

If it can pull that then it was a good motor

 

I have an 8V71N and a 6V92T both in my bus collection, both equipped with 740 Allisons.

 

Ran a 475hp one for a while hauling grain, it wasn't in the same ballpark with the big cams and mechanical 3406s we have now.

 

Good old 2 strokes. They could rev at 2100 all day and never miss a beat.

FWIW, the engine sound from the Rubber Duck's Mack was not of the Mack engine it was equipped with but of a 8V71 as the director felt that the 2 stroke sounded "tougher" than the 4 stroke Mack.

Out in Horizon, TX near my company's terminal there's an old Autocar tow truck that doesn't appear to be used very much. I'm guessing early to mid 70's vintage. Would be a neat restoration project.

 

I occasionally ran a mid 70's KW with a 475 and a 13 over. Couldn't pull with the 425 Cats, but on flat ground with her legs stretched, they never stood a chance. (Neither did your eardrums!)

 

i think they had two silver 92 one had more Hp than than the one, also had a black painted one with yellow flames on the intakes . my friend had one and run it a million miles with no major problems. like the one fella said they are a little loud.