36 © Scania Industrial & Marine Engines 1997-11:2
Alternative 2
- Set the No. 1 cylinder to TDC by turning the engine in its direction of
rotation until both valves are closed.
- Adjust both the valves for the No.1 cylinder. Correct valve clearance is
indicated on the instruction plate on one of the rocker covers.
- Repeat this procedure with the remaining cylinders in the order
5 - 3 - 6 - 2 - 4 (firing sequence) by turning the engine 1/3 revolution in
its direction of rotation between each adjustment.
25. Every 2,400 hours:
CHANGING (or CLEANING) VALVE
FOR CLOSED CRANKCASE
VENTILATION
Alternative 1:
Change the valve at the specified interval.
Alternative 2:
- Remove the valve after the specified interval.
- Clean the valve by placing it in a bath of diesel fuel oil overnight.
Then rinse it several times in diesel and let it drip off.
- Refit the valve.
- The valve may be reused (cleaned) a maximum of two times
after the first 2,400 hours of use. Take care to mark the valve
after cleaning it.
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