Range Rover P38
12
ENGINE
NEW RANGE ROVER
8
DESCRIPTION AND OPERATION
1. Camshaft timing chain drive
2. Upper tension rail
3. Chain adjuster
4. Injection timing
5. Lower tension rail
6. Oil return
Oil filter
The oil filter is vertically-mounted below the charge air
collector. It consists of a filter element contained
within a housing which is screwed to a filter head. A
filter by-pass valve is installed in the housing, while
the filter head holds a thermostat. The thermostat
promotes quick warm up of the engine by preventing
oil circulating through the oil cooler when the oil
temperature is low. The thermostat operates at 80
°
C.
Oil ducts
Oil circulates around the engine, and is delivered to
the turbocharger bearings, through ducts and oilways.
A longitudinal main oil duct allows oil to be delivered
to the crankshaft bearings. Vertical ducts from the
main duct allow oil to the piston cooling jets and to the
camshaft bearings.
Operation
Refer to the lubrication system circuit diagrams for
lubrication system operating details.
Auxiliary driven assemblies
The auxiliary driven assemblies consist of the
following:
Water pump
Power steering pump
Alternator
The water pump, alternator and power steering pump
are driven from the crankshaft by means of a
decoupled pulley and a 5-rib, automatically tensioned,
V-belt.
