Service manual

5-87
E
POWR
CONNECTING RODS AND PISTONS
3. Remove:
• Top ring
• 2nd ring
• Oil ring
NOTE:
When removing a piston ring, open the end
gap with your fingers and lift the other side of
the ring over the piston crown.
Cylinder and piston inspection
The following procedure applies to all of the
cylinders and pistons.
1. Check:
• Piston wall
• Cylinder wall
Vertical scratches → Replace the cylin-
der, and the piston and piston rings as a
set.
2. Measure:
• Piston-to-cylinder clearance
Measurement steps:
• Measure cylinder bore “C” with the cylin-
der bore gauge.
NOTE:
Measure cylinder bore “C” by taking side-to-
side and front-to-back measurements of the
cylinder. Then, find the average of the mea-
surements.
Cylinder bore “C”
74.060–74.075 mm
(2.9157–2.9163 in)
Taper limit “T” 0.08 mm (0.003 in)
Out of round “R” 0.05 mm (0.002 in)
“C” = maximum of D
1–D6
“T” = maximum of D
1–D5 (direction d)
and D
2–D6 (direction e)
“R” = maximum of D
2–D1 (measuring
point a) and D
6–D5 (measuring point c)
D1D2
D3D4
D5D6
d
e
a
b
c