Linhai ARCHON 400, Service Manual

Page: 48 / 218

CHAPTER 3 ENGINE
BUCK 450 SERVICE MANUAL 20.0
ROCKER ARM AND ROCKER ARM
SHAFTRE MOVAL
1. Remove:

Rocker arm shaft (intake)

Rocker arm shaft (exhaust)
NOTE:
Attach a rocker arm shaft puller bolt

and
weight

to the rocker arm shaft and slide out
the shaft.
CAM SHAFT INSPECTION
1. Inspect:

Cam lobes
Pitting/Scratches/Blue discoloration
→
Re-
place .
2. Measure:

Cam lobes length
A
○
a
E
A
and
A
○
b
E
Out of specification
→
Replace.
Cam lobes length:
Intake:
A
○
a
E
A
36 .545- 36 .645 mm
<Lim it: 36.45 mm>
A
○
b
E
A
30.021-30.121 mm
<Lim it: 29.92 mm>
Exhaust:
A
○
a
E
A
36 .547- 36 .647 mm
<Lim it: 36.45 mm>
A
○
b
E
A
30.067- 30.167 mm
<Lim it: 29.97 mm>
3. Inspect:

Cam shaft oil passage
Stuffed
→
Blow out oil passage with
compressed air.
ROCKER ARMS AND ROCKER ARM SHAFTS
INSPECTION
1. Inspect:

Cam lobe contact surface


Adjuster surface

Wear/Pitting/Scratches/Blue discoloration
→
Replace.
CHAPTER 3 ENGINE PAGE. 3- 23