Zontes ZT310M 2022, Руководство по обслуживанию

Страница: 24 / 88

6 、 Cylinder head bearing
a. Check the cylinder head bearing. The bearing inner ring shall rotate smoothly without jamming. If the bearing inner
ring rotates sluggishly, please replace the cylinder head bearing.
Cylinder head subassembly
1. As shown in the figure, blow the cylinder head oil passage with an air gun to ensure that the cylinder head oil
passage is unblocked.
2. As shown in the figure, install the valve (Apply oil), valve spring base, valve stem diameter oil seal (To be pressed
into place after installation), valve spring, valve spring retainer, and valve lock clip (Install with valve installation tools).
(
Note: When installing the valve spring, the sparse ring faces upwards and the dense ring faces downwards.
)
3. As shown in the figure, install the camshaft (Need to install O-rings), intake rocker arm sub-parts, exhaust rocker
arm sub-parts, and intake and exhaust rocker arm shafts in order. (
Note: The camshaft can not miss the O-ring.
When the camshaft is installed, the normal T point position needs to be rotated counterclockwise and
inserted at a proper angle to install it in place
)
Blow inlet
Valve
Valve spring base
Valve lock clip
Valve stem diameter oil seal
Valve spring retainer
Valve spring
Sparse circles face up,
dense circles face down
Apply
engine oil
Detect air outlet 2
Detect air outlet 1
Blow inlet
Detect air outlet 1