Engine - Engine and crankcase

Connecting rods

Connecting rods shaped the small end has been designed reduce the reciprocating weight the piston The connecting rods are heavy beam construction and are assembled a matched set each attached the means insert type

They are retained position the connecting rod big end cap and secured two bolts per The small end the connecting rod fitted with a replaceable bronze through which the free floating piston pin The steel pin being held place within the piston two snap rings.

Pistons

Pistons are constructed aluminium silicon alloy with notch type combustion chamber being recessed the piston

Each piston has two compression rings and one oil control ring, reduce the friction and increase positive seating. All rings are located above the piston

Manifolds

The cross flow design aluminium and cast iron exhaust manifolds are opposite sides the cylinder This designed maintain balanced heat distribution within the cylinder The configuration the manifolds also ensures minimum heat transfer the intake

The intake manifold connected through hose air cleaner

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T iming gears

The crankshaft timing gear heated and press fitted the front the a high degree accuracy during This enables precise timing being maintained during the life the The crankshaft gear drives the idler gear , which attached the front cylinder The idler gear then drives the camshaft and the injection pump via meshing helical

The camshaft gear bolted the front the shaft and keyed maintain position the gear the

Lubrication system

Lubrication the figure 3 maintained a gear type oil pump mounted the rear the engine forward the flywheel the left - hand side viewing from rear side the The oil pump driven from the rear the camshaft and drains oil from the engine oil sump through a tube and screen assembly

A spring loaded relief valve integral with the oil filter and prevents over pressurization the A spin type oil filter mounted externally its support housing the left - hand side the Oil flows from the filter the main oil gallery , which runs the length the cylinder which also intersects the camshaft follower chamber .

The main gallery also supplies oil the crankshaft main connecting rods both big and small ends and timing gear bushes. The underside the pistons and pins are lubricated oil pressure spray jets fitted the cylinder block and oil supply via a internal drilled passage through the 2nd bearing the cylinder Big end are without a hole for small end bush lubrication through

T iming gears are lubricated splashed oil from the cam follower chamber and the pressure lubricated camshaft drive gear intermittent flow oil directed the value rocker arm shaft assembly via a drilled passage the cylinder This located vertically above number 3 camshaft bearing and aligns a hole the cylinder The rotation the camshaft allows a controlled intermediate flow lubrication.

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F Filter Oil pressure sensor

P Pump Suction filter T urbocharger T Oil filter cap

Filter relief valve Breather cap Dipstick

Cooling system

The function the water pump mounted the front the maintain a continuous flow water around the cooling system. This essential ensure correct engine temperature, and performance, during vehicle operation.

The pump driven a ‘V’ belt from the crankshaft pulley , when the engine

The cooling system for the new generation recirculating - pass type with full length water - jackets for the bottom tank the radiator the water which passes the coolant the cylinder This coolant then flows through cored passages cool the cylinder walls.

Passages the cylinder head gasket allow coolant flow from the cylinder into the cylinder head cored passages also conduct the coolant the fuel injector nozzle locations before - entering the water pump below the

The thermostat located the top the water pump body , and controls the flow the water required perature

NOTE: A faulty thermostat may cause the engine operate too high (hot) low (cold) operating not replaced this could result a damaged engine impaired engine

When the thermostat closed a recirculating - pass provided allow the coolant recirculate from the head the block fort a faster warm -

Once the engine has reached its normal operating the thermostat will open and allow water drawn through the radiator the pump Cooled water then returns the engine Cooling occurs the