Case 4WD Repowered With Cummins Diesel

Case 4WD Repowered with Cummins Diesel ENGINES Engines 16-6-11 "When the engine in my 1970 Case 1470 4-WD tractor failed, I replaced it with a 290 hp 6-cyl. Cummins diesel salvaged from an old 1969 semi truck that I bought for $2,500. By buying the entire semi I got all the auxilliary parts I needed," says Tom Pyfferoen, Rochester, Minn. Pyfferoen lengthened the tractor frame 1 ft., widened the front grille 4 in., and made a new hood to accomodate the big 855 in-line diesel. He side-mounted the semi engine's exhaust and air cleaner. "It's my primary tillage tractor," says Pyfferoen, who uses the tractor to pull a 14-ft. chisel plow and 30-ft, field cultivator. "It has a lot more power than the original 145 hp Case engine and has tremendous torque. I spent an extra $550 for a new bell housing and to rework the flywheelbutIsoldtheoriginalCaseengine for $800. The Case engine needed work, and I had already spent quite a bit of money repairing it. I didn't want to spend the money for a new high horsepower 4WD tractor because I was putting fewer and fewer hours on it every year. "I bought the semi tractor from a local implement dealer. The engine had over 100,000 miles but had been rebuilt a couple of times. It had been about 25,000 miles since the lastrebuild By buying the entire semi tractor I got access to all the components that go with the engine, including gauges, radiator, engine mounts, fuel line fittings, air cleaner, alternator, and exhaust pipe. Such parts would cost a lot of money if purchased new. If my engine ever fails, I can buy another used Cummins for about $2,000. "The engine was easy to install. I had to make only a few modifications on the tractor. The radiator was bigger so I had to widen the grille 4 in. and raise it 6 in. and I used sheet metal to build a new hood. It's held down with rubber straps and is hinged in front which makes the engine easy to service. I used square steel tubing to build a framework that supports the side-mounted muffler. Side-mounting reduced noise and vibration in the cab. I used 12-in. channel iron to lengthen the tractor frame. "The Case tractor has the same transmission and bell housing found on GM and Ford trucks so I was able to buy the bell housing I needed from a local truck dealer. I reworked the flywheel by drilling bigger holes in it to fit the bolt pattern on the new engine. I used the tractor's original clutch and pressure plate." Contact: FARM SHOW Followup, Tom Pyfferoen, 6225 19th St. N.W., Rochester, Minn. 55901 (ph 507 2884806).

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