Land Rover Discovery Owners & Service Manuals

Land Rover Discovery: Oil Pan

Oil Pan

  1. Flange bolt
  2. Sprocket
  3. Variable flow oil pump with integral vacuum pump
  4. Oil level gauge
  5. Oil level gauge tube
  6. Bolt (4 off)
  7. Oil pan
  8. Bolt (16 off)
  9. Sealing washer
  10. Drain plug

The oil pan is cast from aluminum alloy using a high pressure die cast process and is located on the underside of the cylinder block. It is sealed to the cylinder block with a 3 mm bead of RTV sealant and secured with fourteen bolts and two shoulder bolts that help locate the oil pan to the block. The oil pan contains the variable flow oil pump with integral vacuum pump, pick up pipe, windage tray and dipstick. The oil is drained via removal of a drain plug and washer located on the side of the oil pan.



  1. Screw (10 off)
  2. Chain cover and gasket
  3. Camshaft carrier
  4. Engine vent module
  5. Screw (8 off)
  6. Exhaust camshaft
  7. Camshaft caps (8 off0)
  8. Screw (20 off)
  9. Roller finger cam follower (16 off)
  10. Inlet and exhaust valve assemblies (16 off)
  11. Cylinder head gasket
  12. Cylinder head
  13. Screw (4 off)
  14. Cylinder head bolt (10 off)
  15. Camshaft cap
  16. Variable Camshaft Timing (VCT) actuator
  17. Inlet camshaft

The cylinder head is cast from aluminum alloy and heat treated. The cylinder head provides location for sixteen valves, four injectors, four glow plugs and one cylinder head temperature sensor. The cylinder head is cooled by a double layer water jacket. Each cylinder has four valves.

Each cylinder is served by four valves. To help achieve the required gas-flow characteristics, the cylinder head has two inlet ports and two exhaust ports arranged asymmetrically around each cylinder bore. The four centrally mounted injectors are located on the upper side of the cylinder head and direct fuel into the combustion chamber. The injectors are retained in the cylinder head by injector clamps and screws located on the camshaft carrier.

To help achieve the required gas-flow characteristics, the fuel injectors are mounted centrally in the combustion chamber.

Four glow plugs are located in the cylinder head. The glow plugs fit into threaded ports between the inlet port for each cylinder, allowing the tip of each glow plug to protrude into the combustion chamber.


  1. Glow plug (4 off)
  2. Fuel injector (4 off)
  3. Inlet valves (8 off)
  4. Exhaust valves (8 off)

The aluminum cylinder head is designed to react to the high diesel combustion cylinder pressures, while also providing a platform onto which the structural camshaft carrier can be mounted.

The cylinder head gasket is of a multi-layer steel construction.


     Camshaft Carrier

    Fuel rail Fuel injector (4 off) Oil filler and cap assembly Engine vent module Engine breather pipe Camshaft carrier Exhaust camshaft and Variable Camshaft Timing (VCT) actuator Inlet camsh

     Variable Сamshaft Еiming (VCT) - Exhaust Camshaft Only

    Exhaust VCT solenoid Exhaust VCT actuator The timing of the exhaust camshaft can be adjusted independently by an oil pressure controlled torsional assist VCT system. The VCT solenoid which is co

     Variable Flow Oil Pump With Integral Vacuum Pump

    Vacuum exhaust valve Pressurized oil outlet to cylinder block Center plate Oil pressure control solenoid Control ring Vanes and rotor assembly Oil pump cover Control spring Oil pump housin


     Headlamp Bulb (G1785270) / Removal and Installation

    REMOVAL WARNING: Vehicles fitted with Xenon headlamps, the following precautions must be observed. Failure to comply may result in exposure to ultra violet rays, severe electric shock, burns or the risk of explosion. Ensure the headlamps are switched off at all times. Eye and hand protection must be

     Rear Drive Axle - Differential - Vehicles without- Active Driveline Differential Case - Vehicles with- 9HP48 9-speed Automatic Transmission - AWD (G1775374) / Removal and Installation

    GENERAL EQUIPMENT REMOVAL NOTES: This procedure contains some variation in the illustrations depending on the vehicle specification, but the essential information is always correct. This procedure contains illustrations showing certain components removed to provide extra clarity. Raise an

    © 2019-2024 Copyright