4. Regular inspection
64
7) After 400 hours of operation turn the cylinder head bolts
by a further 90°(1/4 revolution).
Cylinder Compression Pressure
1. Start and warm up the engine.
2. Stop the engine and disassemble the fuel injection nozzle
holder assembly.
3. Install a special tool, compression pressure gauge
adapter (EU.2-0532), in the fuel injection nozzle holder
hole.
DV2213046A
4. Connect the compression pressure gauge to the adapter.
• The two outside screws (intake and exhaust side)
must not be retightened.
• The cylinder head bolts to be retightened must not
be loosened first, but simply tightened by a further
90°(1/4 revolution) from their actual position.
• when a cylinder head has been removed the
cylinder head gasket must always be changed.
Standard
Above 28kg/cm
2
Tolerance limit
24kg/cm
2
Difference between each cylinder
Within ±10%
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