7-61
Power unit
POWR
Assembling the cylinder block
1. Install the collar a by striking it with a
plastic hammer.
2. Install the oil rings b, 2nd ring c, and
top ring d onto each pistons.
3. Make sure that the “RN” mark a of the
2nd ring c and “R” mark b of the top
ring d are facing upward.
TIP:
After installing the piston rings, check that
they move smoothly.
4. Offset the piston ring end gaps as
shown. NOTICE: Do not scratch the
pistons or break the piston rings.
5. Install the upper bearing into the
connecting rod e and the lower bearing
into the connecting rod cap f.
TIP:
Install the connecting rod bearings in their
original positions.
6. Install the upper main bearings g and
the thrust bearing h into the cylinder
block i.
TIP:
Install the main bearings in their original posi-
tions.
7. Set the crankshaft j and oil seal k into
the cylinder block.
a
a
E
#1,#4
#2
#5
#3
45° 45°
#1
#2
#5
#4
#3
b
c
d
b
a
e
f
g
h
i
g
j
k
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