Crankshaft

The crankshaft (6303):

• Is supported on the bottom of the cylinder block (6010) by three steel-backed, over-plated copper-lead crankshaft main bearings.
• Piston crankpins are positioned to provide a power impulse every 120 degrees of crankshaft rotation providing smooth engine operation.
• Is connected to the camshaft (6250) by sprockets and a timing chain (6268) with timing chain vibration damper (6284) which provide a 2:1 drive ratio.