TOHATSU BFT115A Service Manual page 483

PISTON PIN BORE I.D.
Measure the piston pin bore I.D.at the both sides of the
piston. Take the largest measurement to determine the
piston pin bore I.D.
STANDARD:
21.960 – 21.963 mm (0.8646 – 0.8647 in)
PISTON PIN O.D.
Check the piston pin outer surface for damage.
Measure the piston pin O.D. at the top, middle and
bottom of the piston
measurement to determine the piston pin O.D.
STANDARD:
21.961 – 21.965 mm (0.8646 – 0.8648 in)
SERVICE LIMIT:
21.953 mm (0.8643 in)
PISTON PIN-TO-PIN BORE
CLEARANCE
Set the cylinder gauge at the piston pin O.D. and zero
the cylinder gauge.
Insert the cylinder gauge in the piston pin holes at the
both sides of the piston and measure the piston pin-to
pin bore clearance. Take the largest measurement to
determine the clearance.
STANDARD:
-0.005 – +0.002 mm (-0.0002 – +0.0001 in)
SERVICE LIMIT:
0.005 mm (0.0002 in)
CONNECTING ROD SMALL END I.D.
Measure the connecting rod small end I.D.
STANDARD:
21.970 – 21.976 mm (0.8650 – 0.8652 in)
pin. Take the smallest
CYLINDER BLOCK
15-35