OPM 300 en-GB 85
© Scania CV AB 2020, Sweden
Other
The reference information UP TDC,DOWN
TDC and the angle indications listed in the table
below are engraved on the flywheel. Depending
on the engine installation and type of flywheel
housing, this information is visible in one of the
windows, either furthest up or furthest down on
the flywheel. See illustration.
Adjust the valves according to the table below.
Follow the respective column depending on
whether you are reading the engraving on the fly-
wheel in the lower or the upper window. Start ad-
justment at the top of the table.
Valve clearance, specifications
Intake valve 0.45 mm (0.018 in)
Exhaust valve 0.70 mm (0.028 in)
Tightening torque
Lock nut for valves 35 Nm (26 lb/ft)
Reading in the low-
er window
Valve transition on
cylinder
Adjust intake valve
on cylinder
Adjust exhaust
valve on cylinder
Reading in the up-
per window
DOWN TDC (0°) 6 7 and 8 4 and 5 UP TDC (180°)
UP TDC (180°) 7 1 and 5 2 and 6 DOWN TDC (0°)
DOWN TDC (360°) 1 2 and 4 3 and 7 UP TDC (540°)
UP TDC (540°) 4 3 and 6 1 and 8 DOWN TDC (360°)
310 343
Upper and lower window to read the engraving on
the flywheel.
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