Land Rover Discovery: Engine System - General Information Bearing Inspection (G61255) / General Procedures
GENERAL PROCEDURES
.jpg)
Inspect bearings for the following defects.
- Cratering - fatigue failure
- Spot polishing - incorrect seating.
- Imbedded dirt engine oil.
- Scratching - dirty engine oil
- Base exposed - poor lubrication.
- Both edges worn - journal damaged.
- One edge worn - journal tapered or bearing not seated
Engine System - General Information Camshaft Bearing Journal Diameter (G61234) General Procedures
GENERAL PROCEDURES
.jpg)
Determine the diameter of the camshaft journals.
- Using a micrometer measure the diameter at 90 degrees intervals to determine if the journals are out-of-round.
- Measure at two different points on the journal to determine if there is any tapering.
- If the measurements are out of the specified range, install a new camshaft.
Engine System - General Information Camshaft End Play (G61236) General Procedures
NOTE:
Make sure that the camshaft is to specification.
Using the special tool, measure the end play.
- Slide the camshaft in both directions. Read and note the maximum and minimum values on the dial indicator gauge.
End play = maximum value minus minimum value.
- If the measurement is out of specification, install new components.
Engine System - General Information Camshaft Lobe Lift (G61238) General Procedures
.gif)
Measure the diameter (1) and diameter (2) with a vernier caliper.
The difference in measurements is the lobe lift.
Engine System - General Information Camshaft Surface Inspection (G61237) General Procedures
Inspect camshaft lobes for pitting or damage in the active area.
Minor pitting is acceptable outside the active area.
Engine System - General Information Connecting Rod Cleaning (G61251) General Procedures
CAUTION:
Do not use a caustic cleaning solution or damage to connecting rods may occur.
Mark and separate the parts and clean with solvent. Clean the oil passages.
Engine System - General Information Connecting Rod Large end Bore (G61252) General Procedures
.gif)
Measure the bearing bore in two directions. The difference is the connecting rod bore out-of-round. Verify the out-of-round is within specification.
Engine System - General Information Cylinder Bore out-of-round (G61243) General Procedures
GENERAL PROCEDURES
NOTE:
The main bearing caps or lower crankcase must be in place and tightened to the specified torque; however, the bearing shells should not be installed.
.jpg)
Measure the cylinder bore with an internal micrometer.
- Carry out the measurements in different directions and at different heights to determine if there is any out-ofroundness or tapering.
- If the measurement is out of the specified range, hone out the cylinder block or install a new block.
Engine Emission Control - Ingenium i4 2.0l Diesel / Diagnosis and TestingEngine System - General
Information Cylinder
Compression Test - Ingenium i4 2.0l Diesel (G1817137)
/ General Procedures
READ NEXT:
Engine System - General
Information Cylinder
Compression Test - Ingenium i4 2.0l Diesel (G1817137)
/ General Procedures
GENERAL EQUIPMENT
Compression tester (petrol/diesel)
Land Rover diagnostic equipment
CHECK
CAUTIONS:
Before disconnecting any components, make sure the area is clean
and free from foreign material.
Engine System - General
Information Leakage
Test Using
Smoke Test
Equipment (G1445299)
/ General Procedures
CAUTION:
The compressed air line supply pressure must be between 3.5 and 12
bar (50 and 175 psi) for the smoke test equipment to function
correctly. Do not exceed this pressure. Failure to follow this
Fuel Charging and Controls
- Ingenium i4 2.0l Diesel
Fuel Injection
Component Cleaning (G1202495)
General Procedures
GENERAL EQUIPMENT
Pneumatic vacuum gun
CLEANING
WARNINGS:
Do not carry out any repairs to the fuel system with the engine
running. Failure to follow this instruction may result i
SEE MORE:
Climate Control - Air
Conditioning/ Operation
PRINCIPLES OF OPERATION
To accomplish the transfer of heat, the refrigerant is circulated around the
system, where it passes through two pressure/temperature regimes. In each
of the regimes the refrigerant changes state, during this process the
maximum heat absorption or dissipation occurs.
The low
Wade sensing
WADE SENSING CONTROLS
Wade sensing should not be used
during off-road driving as rapid
increases in water depth cannot
be detected in time to deliver a
warning message to the driver.
When entering water from a steep
gradient, the water level may rise
rapidly.
The Wade sensing system cannot
