Mercury 40

CYLINDER BLOCK/CRANKCASE
Page 4B-20 90-828631R3 MARCH 1999
Piston Pin
1. Measure piston pin diameter. Replace piston pin if out of specification.
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Piston Pin Diameter
0.6285 - 0.6287 in. (15.965 - 15.970 mm)
1. Place the piston pin into the connecting rod and check for free play. There should be no
noticeable free play.
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2. Place the piston pin into the piston and check for free play. There should be no notice-
able free play.
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