TOHATSU BFT75A Service Manual page 408

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PISTON DISASSEMBLY
Before removing the connecting rod bearing, check it
for damage (scores, scratches, etc.) and replace if
necessary.
Remove the connecting rod bearing and the piston
rings from the piston assembly.
Check the piston rings for damage and replace if
necessary.
• Store the removed connecting rod bearings and the
piston rings separately for each piston.
• Do not expand the piston ring excessively as it can
break easily.
• Do not damage the piston with the piston ring.
Replace the piston pin pilot [1], insert adjuster [2], and
the pilot collar 18 [3] of the piston pin tool set (special
tool) [4] with the corresponding tools listed below.
TOOLS:
Piston pin tool set
Piston pin pilot
Insert adjuster
Pilot collar 18
Set the spring [1] and the piston pin pilot (special tool)
[2] on the piston base [3] as shown.
Install the piston base head attachment [4] on the piston
base head [5] and loosely tighten the screws [6].
Install the piston base head on the piston base and
tighten the screws [7].
TOOLS:
Piston pin tool set
Piston pin pilot
07PAF-0010000
070AF-PWC0110
070AF-PWC0120
070AF-PWC0130
[1]
07PAF-0010000
070AF-PWC0110
[3]
CYLINDER BLOCK
[2]
[1]
[4]
[2]
[1]
[3]
[7]
[4]
[5]
[6]
[2]
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