ServiceManual

ToC SERVICE MANUAL MARINE ENGINES
01 ENGINE
Readjustment of camshaft position in case of
correction of set engine timing
NOTE:
This is to be carried out, if the index
value of the engine timing is not within
the allowed adjustment tolerance.
26 Check locking position of crankshaft or lock crank
shaft, if necessary. (piston; cylinder 1; in TDC).
Refer 01.00.01
õ
27 Adjust camshaft to 3.27 mm on the dial gauge, by
turning with special tool 2300711/0 (ill.26).(plunger
guide at unit injector is moved down by 3,27 mm.)
00.03 ill.25
1
NOTE:
During this operation, the camshaft
sprocket must be released from the
taper connection and should only
slightly supported by the cone. Tension
of timing belt remains adjusted, as
described before.
28 Remove locking pin from crankshaft. Refer 01.00.01
00.03 ill.26
29 Tighten hexagon nut SW 30 of camshaft sprocket to
80 +/-4 Nm by holding up with special tool 2300711/
0 at hexagon on camshaft.
ATTENTION: During this operation, camshaft
sprocket and camshaft are connected
positively. A positive connection is
only achieved by tightening the
hexagon nut with 240 +/-12 Nm. The
previously set stroke on the unit
plunger guide must not be changed
when tightening the hexagon nut.
00.03 ill.27
30 Turn crankshaft by 2 further turns, and at the second
turn fix crankshaft with locking pin in TDC position
(cylinder 1; in TDC). See chapter 01.00.01.
With locked crankshaft, the plunger guide stroke of
unit injector at first cylinder should show the following
dial gauge value:
00.00
Index value of engine timing
3.20 mm +/- 0,04 mm
(plunger guide stroke - unit injector)
00.03 ill.28
Z001019/0_6_July 2008 Page ENGINE - 13