TOHATSU BFT115A Service Manual page 488

CYLINDER BLOCK
MATING SURFACE WITH CYLINDER
HEAD WARPAGE
Take care not to damage (scores, scratches, etc.) the
mating surface with the gasket.
Measure the surface warpage using a straight edge (1)
and a feeler gauge (2) as shown.
STANDARD:
0.07 mm (0.003 in) Max
SERVICE LIMIT:
0.10 mm (0.004 in)
If the measurement exceeds the service limit, replace
the cylinder block (page 15-15).
CONNECTING ROD BOLT
Measure the bolt O.D. at the two points as shown and
calculate the difference between the measurements.
STANDARD:
0 – 0.10 mm (0 – 0.004 in)
If the difference exceeds the standard value, replace
the connecting rod bolt (page 15-15).
Measure the O.D. of all connecting rod bolts.
15-40
MEASUREMENT POINTS
(2)
35 mm (1.4 in)
20 mm
(0.8 in)
(1)