Orion AGB-21G - Checking the Rocker Arms and Rocker Arm Shafts

4 - 18
CAMSHAFT /VALVES AND VALVE SPRINGS
A
2 Measure:
camshaft lobe dimensions
A
Out of specification Replace the cam-
shaft.
Camshaft lobe dimension limit
Intake
26.30 mm
Exhaust
26.00 mm
3. Check:
camshaft oil passage
Obstruction
Blow out with compressed air.
CHECKING THE ROCKER ARMS AND
ROCKER ARM SHAFTS
The following procedure applies to all of the
rocker arms and rocker arm shafts.
1. Check:
rocker arm
Damage/wear
Replace.
2. Check:
rocker arm shaft
Blue discoloration/excessive wear/pit-
ting/scratches
Replace or check the lu-
brication system.
3. Check:
camshaft lobe
Excessive wear
Replace the camshaft.
4. Measure:
rocker arm inside diameter
Out of specification
Replace.
Rocker arm inside diameter
10.000
10.015 mm
Limit 10.1 mm
5. Measure:
rocker arm shaft outside diameter
Out of specification
Replace.
Rocker arm shaft outside
diameter
9.98 9.995 mm
Limit 9.910
mm