STEYR MOTORS Marine Engine 2012 Series, Service Manual

Page: 80 / 274

Engine
15/87 Z001138-1_2013-02-01
28. Remove camshaft sprocket from conical
seat by one hammer blow on puller screw.
NOTE:
To correct the setting of engine timing
follow further instructions as per item 30.
Readjustment of camshaft position in case
timing needs to be corrected.
NOTE:
This is to be carried out, if the index
value of the engine timing is not within the
allowed adjustment tolerance.
29. Check locking position of crankshaft or lock
crank shaft, if necessary. (piston; cylinder 1;
in TDC). Refer 01.00.
30. Adjust camshaft to 3,59 mm on the dial
gauge by turning with special tool 2300711/0
(ill.30).(plunger guide at unit injector is
moved down by 3,59 mm.)
NOTE:
During this operation, the camshaft
sprocket must be released from the taper
connection and should only be slightly
supported by the cone. Tension of timing belt
remains adjusted, as described before.
31. Remove locking pin from crank shaft.
Refer 01.00.01
32. 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 for measurement
purpose. A positive connection is only achieved
by finally tightening the hexagon nut with
240
+/-12 Nm.
The previously set stroke on the
plunger guide must not be changed when
tightening the hexagon nut.