SELVA MARINE Blue Whale 250 EFI, Service Manual

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6P23H11
5-60
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Checking the piston pin
1. Measure the piston pin outside diameter.
Replace the piston pin if out of specifica-
tion.
Checking the connecting rod small
end inside diameter
1. Measure the connecting rod small end
inside diameter
a
. Replace the connect-
ing rod assembly if out of specification.
Checking the connecting rod big end
side clearance
1. Measure the connecting rod big end side
clearance
a
.
Piston pin boss bore:
21.017 – 21.031 mm
(0.8274 – 0.8280 in)
Piston pin outside diameter:
20.995 – 21.000 mm
(0.8266 – 0.8268 in)
Connecting rod small end inside
diameter
a
:
21.017 – 21.031 mm
(0.8274 – 0.8280 in)
Connecting rod big end side
clearance
a
(reference data):
0.15 – 0.30 mm (0.006 – 0.012 in)
Cylinder block