Engine (03.00)

Engine (03.00)

Power Conversion (03.11)

Description

Crankshaft

The crankshaft is mounted in 7 main bearings with end loads absorbed by thrust washers at number 4 main bearing. Main bearing bolts are of the 'torque to yield' type and must be renewed if removed.

A twin sprocket, installed to the front end of the crankshaft, drives the camshaft timing chains. A damper pulley on the crankshaft drives the engine auxiliaries via the accessory drive belt.

Also at the front of the engine a timing disc is installed together with a crankshaft sensor (RH side). The sensor provides engine position signals to PCMs.

A second crankshaft sensor (LH side) is installed at the front of the engine - but is not used.

Pistons and Connecting Rods

Six crankshaft big end journals each carry a pair of connecting rods. The connecting rods are secured to the crankshaft by individual connecting rod caps enclosing the connecting rod bearing shells. Connecting rod bolts are of the 'torque to yield' type and must be renewed if removed.

Each piston carries two compression rings and one oil control ring. The arrow on each piston crown must point to the front of the engine during installation.

Connecting rods are manufactured as a single piece with fracture lines at the connecting rod bearing. Each connecting rod cap is cracked from the connecting rod after machining and drilling. Thus each connecting rod cap will only install to, in correct orientation, its matching connecting rod.

Specifications