5-51
POWR
E
CYLINDER BODY ASSEMBLY
INSPECTING THE OIL PUMP DRIVEN
GEAR
5
Inspect:
• Oil pump driven gear
Cracks/pitting/wear
→
Replace.
5510
INSPECTING THE LABYRINTH RINGS
5
1. Inspect:
• Labyrinth ring
1
Cracks/damage/wear
→
Replace.
2. Measure:
• Labyrinth ring wear
a
or
b
+
c
Out of specification
→
Replace.
INSPECTING THE CRANKSHAFT
5
1. Measure:
• Crankshaft runout
(with V-blocks and a dial gauge)
Out of specification
→
Replace.
Labyrinth ring wear limit
0.10 mm (0.004 in)
Runout limit
0.05 mm (0.002 in)
5620
5630
2. Measure:
• Small-end axial play
Out of specification
→
Replace the
connecting rod.
Small-end axial play limit
2.0 mm (0.08 in)
5640
3. Measure:
• Big-end side clearance
Out of specification
→
Replace the
connecting rod.
Big-end side clearance
0.12 - 0.26 mm (0.005 - 0.010 in)
5650
