Mercury FourStroke 3.5 User Manual

Powerhead
Page 4A-28 90-8M0065421 NOVEMBER 2012
Piston Ring End Gap (Standard)
Top 0.15–0.30 mm (0.0059–0.0118 in.)
Middle 0.30–0.45 mm (0.0118–0.0177 in.)
Bottom 0.20–0.70 mm (0.0079–0.0276 in.)
Piston Ring End Gap (Service Limit)
Top 0.5 mm (0.0197 in.)
Middle 0.7 mm (0.0276 in.)
Connecting Rod
1. Measure the small end inside diameter of the connecting rod.
26699
Connecting rod
Wrist pin diameter (standard) 14.01 mm (0.5516 in.)
Wrist pin diameter (service) 14.04 mm (0.5528 in.)
Crankshaft
Crankshaft Runout
1. Thoroughly clean the crankshaft and inspect the bearing surfaces. Replace the crankshaft if the bearing surfaces are
pitted, scored, or discolored.
2. Measure the crankshaft for runout. Replace the crankshaft if out of specification.
26638
Crankshaft
Runout 0.05 mm (0.002 in.)
Crankshaft Journal
1. Measure the crankpin journal.

Mercury FourStroke 3.5 Specifications

General

Brand	Mercury
Model	FourStroke 3.5
Category	Outboard Motor
Language	English