SYSTEMS AND SCHEDULED MAINTENANCE
24
Operator’s Manual Marine Diesel Engines
Revision 0. 05/2016
6.3. General
Solé Diesel offers, for these engine models, a maintenance kit:
MAINTENANCE TASK. SCREW TIGHTENING, FASTENINGT
For details of tightening torques see Section 9 Torques.
MAINTENANCE TASK. VALVE CLEARANCE INSPECTION
The rocker cover must be dismounted to check the valve clearance. This operation must
be carried out when the engine is cold.
Ítem
Assembly standard
Valve clearance (cold setting) Inlet exhaust
0,25 mm
INSPECTION
1.
Inspect the valve clearance in the injection sequence. To check, turn the crankshaft by
the specified crank angle in the normal direction to bring the piston to the top dead
center of the compression stroke.
Injection sequence
Crank angle
SM-82 / SM-94
1 – 3 – 4 – 2
180º / 240º
2.
The TDC of the compression stroke can be obtained
by aligning the TDC mark on the crankshaft pulley
with the mark on the gear case.
3.
First align the TDC mark for the No.1 cylinder. Confirm
that the valves do not move up and down when the
crankshaft is turned about 20º in normal direction of
rotation and in reverse direction. If the rocker arms
move, No. 1 piston is at TDC on the intake or exhaust
stroke. In such a case, turn the crankshaft 360º in the
direction of engine rotation again. No.1 piston is now
at TDC on the compression stroke.
4.
Loosen the lock nut for the adjusting screw. With a feeler gauge inserted between the
rocker arm and valve cap, adjust the valve clearance by turning the adjusting screw.
5.
After adjusting the clearance, tighten the lock nut. Inspect the clearance again and
make sure that it is correct.
6.
Turn the crankshaft 240º or 180º clockwise, according to your engine model (see table 8.
Injection sequence), from TDC of the No.1 cylinder, to set the No.2 cylinder TDC. Repeat
from step 1 to step 6. And the same procedure for No.3 and 4 cylinders.
Содержание SM-82
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