WÄRTSILÄ VASA 6L32, Инструкция по эксплуатации

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13.2 Intermediate gears and camshaft gear
The intermediate gear wheels are case hardened. The wheels
have a common shaft and are fixed to each other by a friction
connection. The lubrication for the bearings is arranged through
drilling’s in the crankshaft, engine block and for the wheels from
a distributing pipe through the nozzles.
The basic adjustment of valve timing and fuel injection is done
with the intermediate gear wheel pair. The timing can be adjusted
if the gear wheels are rotated in relation to each other.
Note! The valves and the pistons will come in contact with each other
if the valve timing is set wrong, which will cause serious dam-
ages to the engine.
13.2.1 Maintenance of camshaft gearing
Whenever the opportunity occurs, check the condition of the gears.
Measure tooth backlash and bearing clearances, see section 06.2. An
early detection of any tooth damage can prevent serious damage.
13.2.2 Basic adjustment of valve timing
The basic adjustment of the valve and injection timing is done by
changing the relative position between the intermediate wheels
(3) and (5). If the position is changed, the position of the camshaft
is changed in relation to the crankshaft.
Note! The relative position between the two wheels is adjusted at the
factory and should not be changed unless it is absolutely
necessary.
1 Remove the injection pump
on cylinder No. 1., see sec-
tion 16.2.1. Prelift can also be checked without removal of
injection pump by using tool 800135. Tool can be ordered from
the local service station.
2 Turn cylinder concerned
to the position until pump tap-
pet roller is on the base circle of the camshaft.
3 Place a dial indicator
at the adjusting screw (24) for injec-
tion pump tappet and adjust the dial indicator to zero, see Fig 16-2.
13 Camshaft Driving Gear 32-200546-02
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