Cylinder Head

DESCRIPTION





Fig. 4

The aluminum alloy cylinder heads feature a pentroof design with four valves per cylinder (Fig. 4). Valve guides are made of cast iron alloy and seat inserts are made of sintered alloy iron, these are pressed into the head. To improve combustion efficiency the chambers have a compact pent-roof design with a squish are a. The cylinder heads are common to either cylinder bank.

OPERATION
The cylinder head closes the combustion chamber, allowing the pistons to compress the air/fuel mixture for ignition. The valves are actuated by the lobe profiles on the camshaft to open and close at specified duration to either allow clean air in the combustion chamber or the exhaust gases out; depending on the stroke of the engine.