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Bobcat Repowered By Toyota Engine
When the engine blew out in his Bobcat skid steer loader, Edward Kaderly, Juda, Wis., was looking at a $1,000 outlay for a new short block. He decided to save his money and instead fitted the loader with a Toyota 20R engine out of an old pickup.
Because the engine is so much bigger than the original, it sticks out the back a couple feet on a cantilevered frame. That reduces maneuverability in tight spaces, but Kaderly says the increase in power, and the money he saved, makes up for the drawbacks.
"The Toyota engine has four times the original power. That's more than I need but it comes in handy," says Kaderly.
At times, having the engine hang out the back works to his advantage. For example, one job Kaderly did with the repowered loader was to repair feeder roofs blown off by high winds by rigging the Bobcat with 10-ft. long loader extension arms. While raising the heavy roofs back into position, the extra weight of the engine provided the counterbalance needed to keep the rear wheels on the ground.
To mount the engine, Kaderly first welded a frame made out of steel tubing to the Bobcat chassis. Then he built a second frame inside the first that slides in and out. The engine mounts on the second frame so Kaderly can easily slide the engine in and out for maintenance.
The engine mounts at a 90? angle to the Bobcat transmission so Kaderly ran three V-belts from the engine driveshaft to the transmission. There's about a 1-ft. distance between the drive pulleys on the transmission and engine. In addition, he had to change rotation of the transmission to match the engine. He did it by turning the bevel gear around inside the transmission.
Contact: FARM SHOW Followup, Edward S. Kaderly, N1695 Mill Rd Juda, Wis. 53550 (ph 608 897-4831).

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1993 - Volume #17, Issue #5