Engine block: Notes

Fig 1: Identifying Basic Engine (4-Cylinder Petrol)

Courtesy of SAAB-SCANIA OF AMERICA, INC.

All 4-cylinder engines are water -cooled in-line units with 4 valves per cylinder, 2 overhead camshafts and 2 balancer shafts incorporated in the cylinder block. The engines have fuel injection and are of cross flow type, i.e. with the inlet valves on one side and the exhaust valves on the other side of the combustion chambers. The balancer shafts are designed to overcome vibration and the forces generated by the moving parts of the engine and at the same time reduce the level of unwanted engine noise.

Fig 2: Exploded View Of Piston

Courtesy of SAAB-SCANIA OF AMERICA, INC.