Sunday, October 20, 2013
D268 Engine Specs
The D268 engine is manufactured by Case International Harvester (Case IH). Case IH develops and manufactures several brands of agricultural equipment. Their engines and farm equipment are distributed around the world under several well-known brand names. Case IH brands include Farmall, Maxxum and International Harvester. The International Harvester tractor, as well as other farm Case IH equipment, is known for its signature red color. In 2008, the company introduced a Gold Signature Edition tractor to celebrate milestone anniversaries of Stieger and Magnum tractors. The models are limited editions with decals that are personally signed by the Case IH president.
Engine
The diesel-fueled D268 engine is four cylinders and has 82 to 85 horsepower. Its displacement is 268 cubic inches. Bore and stroke is 3.937 by 5.50 inches. Its rated RPM is 2,400.
Battery
The battery is rated 12 volts and 735 amps. The battery dimensions are 45 by 172 by 232 millimeters.
Crankshaft
The crankshaft flange is flat with no centering rings. It has a center straight balance gear with 90 teeth. The crankshaft is designed with one keyway timing gear and an L hand helix with 33 teeth. Main journals and rod journals (standard size) are included with the purchase of the crankshaft. The rear sleeve crank seal is 4.327 to 4.335.
Valves
The intake valve is 1.689 inches in head diameter, 5.743 inches in length, and has a 0.392-inch stem diameter. The exhaust valve is 1.611 inches in head diameter, 5.745 inches in length, and has a 0.391-inch stem diameter. The valve guide has a 0.387-inch inside diameter and is 3.038 inches in length.
Bearings
The main set of bearing rods is 3.1485 inches with a 1.492-inch journal. The standard length for the main flange is 1.437 inches. The oversize length for the main flange is 1.447 to 1.467 inches. The bearing rod pair is 2.5185 inches with a 2.5193-inch journal. The locking lip is on the right side.
Starter and Air Filter
The starter is rated 9 volts and 2.7 kilowatts. The starter weighs 24 pounds. The inner air-filter dimensions are 13 by 3-1/2 inches.
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