TOHATSU BFT 250A, Service Manual

Page: 429 / 639

15-15
dummyhead dummyhead
CYLINDER BLOCK
PISTON ASSEMBLY
Install a new piston pin clip [1] on one side only.
• Wear eye protection as the piston pin clips can pop
out during installation.
• Make sure the piston pin clip does not align with the
cutout in the piston pin bore.
Put on heavy gloves, then using a heat gun, heat the
piston to approximately 158 °F (70 °C).
Apply molybdenum disulfide oil to the pin holes in the
piston pin [1] outer surface, piston, and to the
connecting rod [2] small end inner surface.
Install the piston pin so that the " " mark [3] on the
piston head points to the same direction as the model
mark [4] on the connecting rod.
Install a new piston pin clip [5] to the opposite side.
• Wear eye protection as the piston pin clips can pop
out.
• Make sure the piston pin clip does not align with the
cutout in the piston pin bore.
[1]
[5]
[1]
[2]
[4]
[3]