Joyner JNSZ1100SV, Owner'S Manual

Page: 53 / 132

2.7. Camshaft
2.7.1. Use the caliper to measure the
height of the camshaft. If it is below
the specified limits, make roper
replacement.
Camshaft Unit
：
mm
Model EF
Item
ZL
、
RL
GL
、
GS
、
ZS
Standard
IN
φ
23.0-0.02 -0.033
EX
φ
23.0-0.02 -0.033
Limit
IN
φ
22.9
EX
φ
22.9
2.7.2. Checks on camshaft axial clearance
(1)
、
When the axial spacing is measured
with a clipper to be larger than the
benchmark value, the camshaft is to be
replaced. The air inlet camshaft axial
clearance is 0.1
～
0.170mm
。
The air
exhaust camshaft axial spacing is 0.1
～
0.173mm
。
Limits for operation
：
0.18mm
2.7.3. Checks on camshaft meshing
clearance
(1). Put camshaft into cylinder head
(2). Make sure the front mark on bearing
cover and shaft number is ok, and then
tighten bolt.
(3). Fix air inlet camshaft, and then
measure the clearance with dial indicator.
Attention: measure 4 points around gear
²
use a special tool to rotate air inlet
camshaft.
²
under the condition that the mark on
drive-gear match the mark on driven-gear
3. Installations
3.1.
When using a special tool
3.1.1. Fix the two
φ
6 holes of the camshaft gear S/A.
3.1.2. Turn the slave gear to the right, match the mark
hole on the slave gear with the mark on the
master gear, or align the marks on the slave