© Scania CV 2009 51
Order of adjustment
- Turn the flywheel counterclockwise so that the marks on the flywheel
can be seen in the lower opening in the flywheel housing (depending on
which opening the reading is to be taken from). Refer to table.
- Measure the valve clearance with a feeler gauge and adjust the valves as
per the order of adjustment in the table below. Correct valve clearances
are also given on the instruction plate on one of the rocker covers.
- Checking and adjustment of the rocker arms for the PDE injectors
should be done together with the valve clearance check/adjustment. See
step 21.
- If it is not possible to take a reading in one of the covers, observe the
valve overlap, turn the flywheel counterclockwise 120° (1/3 turn) at a
time and adjust the valves according to the table below and the unit
injectors as described on the next page.
Mark on flywheel
(reading taken through the
lower opening)
Valve overlap on
cylinder
Adjust the valves
on cylinder
TDC Down (0°) 1 6
120° 5 2
240° 3 4
TDC Down (360°) 6 1
120° 2 5
240° 4 3
Mark on flywheel
(reading taken through the
upper opening)
Valve overlap on
cylinder
Adjust the valves
on cylinder
TDC Up (0°) 1 6
300° 5 2
60° 3 4
TDC Up (360°) 6 1
300° 2 5
60° 4 3
5
4
3
2
1
6
FLYWHEEL
Cylinder numbering
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