139706-0100 ZEXEL 9 411 613 980 BOSCH O-RING 9411613980 1397060100 8972127890

General Information
Learn principles of operation of engines from "Basic Engine" in Fundamentals of Service Manual 30 - ENGINES.Design Characteristics
The 3-164D, 3-179D, 4-219D, 4-239D, 4-276D, 6-329D, 6-359D, and 6-414D engines have:1. Internal combustion2. Four strokes per cycle3. In-line type cylinder block4. Diesel fueling5. Valves in cylinder head6. Natural aspiration7. Liquid coolant8. Pressure lubricationThe 4-239T, 4-276T, 6-359T, and 6-414T engines have:1. Internal combustion2. Four strokes per cycle3. In-line type cylinder block4. Diesel fueling5. Valves in cylinder head6. Turbocharger7. Liquid coolant8. Pressure lubricationFront Reference
Fig. 1-Water PumpThe water pump (Fig. 1) end is the "front" of the engine.Direction of Crankshaft Rotation
Fig. 2-Crankshaft RotationThe crankshaft turns clockwise when viewed from the water pump end.Firing Order
Fig. 3-Cylinder Arrangement3-164 and 3-179 EngineFiring order is: 1-2-3
Fig. 4-Cylinder Arrangement4-219, 4-239, and 4-276 EnginesFiring order is: 1-3-4-2
Fig. 5-Cylinder Arrangement6-329, 6-359, and 6-414 EnginesFiring order is: 1-5-3-6-2-4