Land Rover Engine V8 4 4 L 2005 Capewell Manual

 
 
The camshafts are manufactured in chilled cast iron. Five aluminium alloy caps retain each camshaft. Location 
numbers, 0 to 4 for the intake camshaft and 5 to 9 for the exhaust camshaft, are marked on the outer faces of the 
caps. 
 
Sensor Ring 
 
 
 
Timing rings for each camshaft position sensor are located at the rear of both intake camshafts. A flat, machined near 
the front of each camshaft, enables the camshafts to be locked during the valve timing procedure. 
 
Camshaft Position Sensor 
Item...

 
 
The camshaft position sensors are installed in each cylinder head at the rear of the intake camshaft. It is a variable 
reluctance sensor that provides an input to the ECM regarding the position of the camshaft. For additional 
information, refer to   Electronic Engine Controls (303-14B Electronic Engine Controls - 4.4L) 
 
 
Inlet and Exhaust Valves 
Each cylinder head incorporates dual overhead camshafts operating four valves per cylinder via solid shimless 
aluminium alloy valve lifters. 
 
The...

 
 
Eight, top fed, 12-jet, fuel injectors are installed in the fuel rails. The injectors are electromagnetic solenoid valves 
controlled by the ECM. Two O-rings seal each injector to manifold interface. The fuel jets from the injectors are 
directed onto the back of the intake valves. For additional information, refer to   Electronic Engine Controls (303-14B 
Electronic Engine Controls - 4.4L) 
 
 
VARIABLE VALVE TIMING (VVT) 
The continuously VVT unit turns the intake camshaft in relation to the...

 
 
 
The VVT unit is a hydraulic actuator mounted on the end of the intake camshaft, which advances or retards the intake 
camshaft timing and thereby alters the camshaft to crankshaft phasing. The oil control solenoid, controlled by the 
ECM, routes oil pressure to either the advance or retard chambers located either side of the three vanes interspersed 
within the machined housing of the unit. 
 
The VVT unit is driven by the primary chain and rotates relative to the exhaust camshaft sprocket. When...

 
 
General 
Oil is drawn from the reservoir in the oil pan and pressurised by the oil pump. The output from the oil pump is then 
filtered, cooled and distributed through internal oil passages. 
 
All moving parts are lubricated by pressure or splash oil. Pressurised oil is also provided for operation of the variable 
valve timing units and the timing gear chain tensioners. 
 
The oil returns to the oil pan under gravity. Large drain holes through the cylinder heads and cylinder block ensure 
the quick...

 
 
The fabricated steel oil pick-up is immersed in the oil reservoir to provide a supply to the oil pump during all normal 
vehicle attitudes. A mesh screen in the inlet prevents debris from entering the oil system. 
 
Oil Pump 
 
 
The oil pump is installed on the crankshaft at the front of the engine. The pump inlet and outlet ports align with oil 
passages in the bedplate. 
 
The pumping element is an eccentric rotor, which is directly driven by flats on the crankshaft. An integral pressure 
relief...

 
 
The oil filter is a replaceable cartridge installed on an adapter. An internal bypass facility permits full flow bypass if the 
filter is blocked. 
 
The oil pressure switch connects a ground input to the instrument cluster when oil pressure is present. The switch 
operates at a pressure of 0.15 to 0.41 bar (2.2 to 5.9 psi). 
 
Oil Level Gauge 
 
 
The oil level gauge locates along the left side of the oil pan, supported in a tube installed in the sump. Two holes in 
the end of the gauge indicate the...

 
 
The fabricated stainless steel twin skin exhaust manifolds are unique for each cylinder bank. The bank B manifold 
has a connection for the EGR transfer pipe. 
 
Spacers on the securing bolts allow the manifolds to expand and retract with changes of temperature while 
maintaining the clamping loads. 
 
Heat shields are integrated into the exhaust manifold gaskets. 
 
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