Maintenance Manual of 4M11 Series Diesel Engine For Land Power Generators
16
Figure 2-7 Engine Oil Filter
Check and adjust the clearances of intake and exhaust valves.
Check and adjust the clearances of intake and exhaust valves as per following procedure:
①Under the cold status of diesel engine, turn the engine (along the rotation direction of
engine) to the compression top dead center of 1st, 4th cylinder. In such case, the groove on
the flywheel is aligned with marking OT on the flywheel housing, as shown in Figure 2-8.
Figure 2-8 Flywheel Marking
②Disassemble the valve rocker cover from the cylinder head and judge whether the 1st or
4th cylinder is at compression stroke (there is a gap between exhaust valve and rocker for the
cylinder under the compression stroke).
Engine oil filter
Marking O
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