• Hot engines and oil can cause severe burns. Be careful not to burn yourself during removal/installation of each component.
• Fuel vapor is hazardous. It can very easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel.
• Highly pressurized fuel may spray out if the fuel line is cut. Due to the following dangers occurring with a fuel spray, always complete the “Fuel Line Safety Procedure” to prevent the fuel from spraying.
― Fuel may cause irritation if it comes in contact with skin and eyes.
― If fuel ignites and causes a fire, it may lead to serious injury or death, and damage to property and facilities.
11. Install the SST using the following procedure:
(1) Install the SST (49 JP04 002) to the glow plug installation hole.
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(2) Tighten the SST to the specified torque.
(3) Connect the SST (49 S010 1A0A) to the SST (49 JP04 002).
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12. Measure the compression pressure using the following procedure.
Note
• The cranking method is as follows.
MTX
― When the ignition switch is pressed with the clutch pedal depressed, cranking starts.
― When your foot is removed from the clutch pedal during cranking, cranking stops.
― When the ignition switch is pressed during cranking, cranking stops.
ATX
― When the ignition switch is pressed with the brake pedal depressed, cranking starts.
― When the ignition switch is pressed during cranking, cranking stops.
(1) Crank the engine and measure the following values simultaneously.
• Compression pressure
• Engine speed
Compression pressure
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Standard: Refer to the graph.
Minimum: Refer to the graph.
Maximum difference between cylinders: 147 kPa {1.50 kgf/cm2, 21.3 psi} [180 rpm]
(2) Perform Step (1) for all cylinders.
(3) If a measurement is less than the minimum specification, or there is a cylinder which exceeds the specified difference between cylinders, add a small quantity of engine oil through the glow plug installation hole and perform Step (1).
• If the pressure increases by adding the engine oil, the piston ring or the cylinder surface is worn, or they are damaged. Perform overhaul servicing.
• If the pressure does not increase, valve seizure, valve attachment malfunction, or pressure leakage from the cylinder head gasket might be occurring. Perform overhaul servicing.
