TOHATSU BFT75A Service Manual page 411

dummyhead dummyhead
CYLINDER BLOCK
PISTON ASSEMBLY
• Use the same special tools as those used during
disassembly (page 15-7).
Install the insert adjuster (special tool) [1] on the insert
pin [2].
Adjust dimension A of the insert adjuster to 45 mm (1.8
in) by turning the insert adjuster.
TOOLS:
Piston pin tool set
Insert adjuster
Set the pilot collar 18 (special tool) [1] on the piston
base assembly [2] as shown.
TOOLS:
Piston pin tool set
Pilot collar 18
Set the piston [1] and the connecting rod [2] on the
special tool with the model marks [3] facing up.
• Check that concave [4] in the connecting rod and
"IN" mark [5] on the piston head are in the same
direction.
Apply molybdenum disulfide oil to the outer surface of
the piston pin [6].
Insert the piston pin into the pin hole in the piston and
set the special tool.
• Check that the piston base head attachment is set
on the outer side from the piston pin hole securely
Drive the piston pin into the connecting rod using a
hydraulic press.
• Drive in the piston pin pilot (special tool) until it
comes in contact with the piston base [7] (oil pres-
sure of the hydraulic press rises slightly).
TOOLS:
Piston pin tool set
Insert adjuster [8]
Pilot collar 18 [9]
15-10
07PAF-0010000
070AF-PWC0120
07PAF-0010000
070AF-PWC0130
INSERT PIN
[4]
07PAF-0010000
070AF-PWC0120
070AF-PWC0130
[2]
[7]
DIMENSION A
45 mm (1.8 in)
[1]
[6]
[2]
[3]
INSERT PIN
[1]
[9]
[2]
[1]
[2]
[1]
[5]
[5]
[8]
[6]