Zontes ZT125-M 2022, Руководство по обслуживанию

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Valve clearance adjustment (M310)
●The M125 /350 steps are similar to the M310, taking the
M310 as an example.
1. Maintenance information
1.1 General information
a. This chapter introduces the operation method of valve
clearance adjustment.
b. The adjustment of the valve clearance can only be
carried out after the engine is removed from the vehicle.
c. Adjust the valve clearance when the engine is at room
temperature (≤35 ℃ ).
1.2 Assemble torque value
No. Name Torque
（
N·m
）
1
M6×30Hexagon flange bolts
(environmentally friendly color
zinc)
10±2N.m
2
M5×15-5#Hexagon socket head
bolt (oxidized black)
5±1N.m
3
M30×1.5Aluminum screw plug
(dark gray)
16±2N.m
4
M14×1.5Screw plug
(environmental color zinc)
10±2N.m
1.3 Tools, measuring tools, accessories
a. 8# and 14# T-shaped socket wrenches, 5# and 10#
hexagon wrenches, magnet sticks, tweezers, rags;
b. Feeler gauge;
c. Thread fastening glue and sealing silica gel.
2. Operation steps
a. Use an 8# T-shaped socket wrench (or a wind batch) to
remove the 6 M6×30 hexagonal flange bolts of the cylinder
head cover, and then remove the cylinder head cover
assembly.
b. Use 5# and 10# Allen wrenches to remove M14×1.5
screw plugs and M30×1.5 aluminum screw plugs, and remove
the O-ring.
c. Insert the 14#T-shaped socket wrench from the M30×1.5
aluminum screw plug hole and set it on the hexagonal head
of the flywheel bolt, and then turn the crankshaft clockwise
to align the T-point engraved line on the flywheel with the
mark of the M14×1.5 screw plug hole gap. At the same time,
the top dead center 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! ! !