Zontes ZT310T-M, Руководство по обслуживанию

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engraved line on the timing driven sprocket should also
be aligned with the raised mark line on the cylinder
head.
Caution: Once the T-point engraved line turns over
the marked line when rotating the flywheel, it cannot
be reversely rotated back to the right point. The
crankshaft must be turned clockwise twice again to
realign the points! ! !
d. Use a 5# hexagon wrench to remove the M5×15-5#
hexagon socket head bolts and the rocker arm limit
block on the rocker arm shaft of the intake valve and the
rocker arm shaft of the exhaust valve respectively.
e. Measure the gap between the two intake valves
and the two exhaust valves with a feeler gauge. The
measured values are subject to a slight drag. Make a
record of the four valve clearance values measured.
f. Push the intake valve rocker arm and exhaust valve
rocker arm to the side of the timing driven sprocket to
expose the valve adjusting gasket. Then, according to
the standard value of valve clearance (intake valve:
0.08
～
0.12mm (0.003
～
0.005 in), exhaust valve: 0.18
～
0.22mm (0.007
～
0.009 in), determine the specifications
of the adjusting gasket that needs to be replaced. For
example: test The left side intake valve clearance value
is 0.04mm (0.002 in), which is less than the standard
value. You need to increase the clearance of 0.04
～
0.08mm (0.002
～
0.003 in). The thickness specification
of the original adjusting gasket on the engine is
2.36mm( 0.093in), you need to replace the adjusting
shim with 2.28
～
2.32mm (0.09
～
0.091 in). According to
this method, determine the specifications of the
adjusting shim for the four valves to be replaced, and
place them according to the records made before to
prevent mixing .
Caution: The thickness specification of laser
marking on the adjustment pad will be invisible or
disappear due to abrasion. At this time, you need to
take it off and measure the thickness with a
micrometer! ! !