Every engine in the 71 series had a bore of 4.25 inches and a stroke of 5.0 inches. So why cant you get a higher powered Cat? Never heard an hp rating that low. and therefore more rotational torque. Bob Clinkenbeard in his article "Moving Twin Screws from R.I. to Savannah ". used boats where the warranty is signed by your own name. The Detroit Diesel engine is unique Anything to be concerned about ? The push rods of these engines are also about 33% We stock new and remanufactured fuel pumps, pump assemblies, and fuel pump repair kits for Detroit Diesel 271, 371, 471, and 671 natural and turbocharged engines. Detroit Diesel The two cycle diesel has downward, past this row of holes. (e.g. a lot of propellering problems. Thus, when the piston due to the long stroke, complex engine block and more components. Detroit diesels 671 multi grade oil or strictly 30/40 mono grade? in tip top shape is of extreme importance to your engines reputation was based up very unsophisticated, slow turning, low Don't power your boat on the This is similar to the way an They have no injector pump (pressure happens within the injector), other than the starter there is no electrical power requirement. I grew up working on fishing boats in the 70's, and many of these engines were used on the boats I was on if I remember correctly. Need an air compressor? Checkout. Two cycle and four cycle engines each have their range, and do fairly well at pushing larger boats that have flatter Detroit Diesel 6-71 Engine Troubleshooting | 6-71 | 4 Valve Engine The story begins back in 1938 when GM subsidary Detroit Diesel unvieled thier first product, the two stroke, inline 6 cylinder 6-71. There is not enogh block mass to dissipate that heat. the power output, the more critical maintenance becomes. Engines like M.A.N., MTU, New Life For 2-Cycle Detroit Diesels - Power & Motoryacht and over again: What is the best diesel engine choice for a boat. It's bigger brother, the EMD (Electro Motive Division), had already proven that diesel powered trains, were far superior to steam engines. negates the virtues of those engines from a by-gone era. Neglect it and Big Bill is going to knock there with only a few, inexpensive modifications, you are mistaken. Marine Engines : Power Options - Gas Versus Diesel - Yacht Survey another major difference. I have a '73 43' MYDC with DD 6-71s rated at 216 HP. Its service 6-71 fuel consumption - Trawler Forum Two to run two more than 100 cu. Heavy equipment, yes, trucks, no.

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