TOHATSU BFT 250A, Service Manual

Page: 447 / 639

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CYLINDER BLOCK
CYLINDER HEAD SURFACE
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.
CONNECTING ROD BOLT
Measure the bolt O.D. at the two points as shown and
calculate the difference between the measurements.
If the difference exceeds the standard value, replace
the connecting rod bolt.
Measure the O.D. of all connecting rod bolts.
STANDARD:
0.07 mm (0.003 in) Max.
SERVICE LIMIT:
0.10 mm (0.004 in)
MEASUREMENT POINTS
[2]
[1]
STANDARD:
0 – 0.10 mm (0 – 0.004 in)
35 mm (1.4 in)
20 mm
(0.8 in)