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Old 12-10-2014, 08:17 PM   #6
O C Diver
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City: Fort Myers, FL... Summers in the Great Lakes
Vessel Name: Slow Hand
Vessel Model: Cherubini Independence 45
Join Date: Dec 2010
Posts: 12,834
Quote:
Originally Posted by twistedtree View Post
To the extent there are differences, I think it's more due to application than anything else. My totally unscientific take is that the Cummins get run at higher output levels, and get built into boats with marginally designed sea water systems. The result, quite predictably, is problems.

Deere's on the other hand, seem to be used in lower output applications in boats with more thoughtful installation designs. And few problems arise. On BoatDiesel.com, Deere's almost never come up for discussion.

So I would agree with Dave that both are excellent engines, and success depends much more on proper operation, installation, and maintenance.
100% agree! I consider myself a Cummins man having owned 4 of their engines. When considering options for my Cherubini repower I naturally considered a 4BT recon as an option. While the 4BT was a decent option, it clearly doesn't enjoy the reputation that it's big brother the 6BT has. Also it was never really adopted by the trawler manufactures. In this size range the JD 4045 clearly owned the market between these 2 manufacturers. The 4045 is considered a much smoother (less vibration) running engine with better fuel economy and great trouble free life expectancy.

Ted
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