1D-45 Power Unit Mechanical:
Assembly
Assembly is reverse order of disassembly paying special
attention to the following steps.
CAUTION
If original components are not replaced, each
piston, piston pin and conrod is to be
assembled and installed in its original order
and position.
Piston to conrod
• Apply engine oil to piston pin (1), piston pin bore and
conrod (2).
• Assemble conrod (2) to piston (3) as shown in figure
and insert piston pin (1) through piston and conrod.
• Install piston pin circlips (4).
NOTE
• “87L” mark on conrod and up mark “A” on
piston dome must face toward flywheel
side.
• Always use new piston pin circlip.
• Install so that circlip end gap comes within
such range as indicated by arrow.
End gap of the circlip should not be
aligned with the cutaway in the piston pin
bore.
Piston ring to piston
1) Install the oil ring.
• Apply engine oil to piston rings.
• Install spacer (1) first, then side rails (2) to piston.
CAUTION
When installing spacer, do not allow spacer
ends to overlap in groove.
“A”: Up mark “B”: Circlip end gap direction
Flywheel side
87L
“B”
“A”
I9J011140009-01
4
1
3
4
2
I9J011140010-01
“A”: Incorrect “B”: Correct
1
2
2
I9J011140011-01
“A”
“B”
I9J011140012-01
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