46
30 Checking / adjusting valve clea-
rance
Checking the valve clearance must be
done with a cold engine, that is an engine
which did not run for at least 6 hours.
31 Remove rocker cover
Remove the 5 bolts of the rocker cover.
Complete the following steps:
32 locating TDC
Locate the Top Dead Center (TDC), at the
end of the compression stroke, for cylin-
der 1 by barring the engine slowly until the
TDC marks of the engine block and the
crank pulley match.
Checking valve clearance
Every 500 operating hours.
4 Maintenance
Note: There are two TDC’s e.g. compres-
sion and suction. At the TDC at the end
of the compression stroke the rocker arm
does not move when the crank pulley is
rotated a little.
VD01067
12
VD00130
TDC mark
cylinder 1 and 4
TDC mark
cylinder 2 and 3
Mark on
gearcase
Injection
timing
mark
27
Summary of Contents for M4.55 SOLAS
Page 1: ...Operation manual M4 55 ...
Page 2: ......