4.8. Cylinder
4.8.1. Valve clearance adjustment
Usually should check the valve clearance of intake & exhaust every 1,000 hours after engine
operation. Refer to "6.3.26. Valve clearance adjustment" details.
The valve clearances should be adjusted at the times of the following situations.
•
After initial 50 hours operation.
•
When the engine is overhauled and the cylinder heads are disassembled.
•
When severe noise comes from valve train.
- When the engine is not normally operated, even though there is no trouble in the fuel
system.
4.8.2. Cylinder compression pressure
check
•
Stop the engine after warming up, and
take out nozzle holder assembly.
•
Install the special tool (compression
gauge adapter) at the nozzle holder
hole, and connect the compression
pressure gauge there.
*
Test Condition
Cooling water temperature 20°C, Engine rotation 200rpm (about 10 revolutions)
- 40 -
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