Piston Pin - Mercury 40 Service Manual

CYLINDER BLOCK/CRANKCASE

Piston Pin

1. Measure piston pin diameter. Replace piston pin if out of specification.
1. Place the piston pin into the connecting rod and check for free play. There should be no
noticeable free play.
2. Place the piston pin into the piston and check for free play. There should be no notice-
able free play.
Page 4B-20
Piston Pin Diameter
0.6285 - 0.6287 in. (15.965 - 15.970 mm)
55839
55840
55841
90-828631R3 MARCH 1999