Piston Specifications - Mercury FourStroke 2.5 Service Manual

Piston Specifications

Piston outside diameter (standard)
Piston outside diameter (service limit)
Piston clearance (standard)
Piston clearance (service limit)
Piston ring side clearance (standard)
Top
Middle
Bottom
Piston ring side clearance (service limit)
Top
Middle
Bottom
Piston ring end gap (standard)
Top
Middle
Bottom
Piston ring end gap (service limit)
Top
Middle
Piston pin diameter (standard)
Piston pin diameter (service limit)
90-8M0065421 NOVEMBER 2012
Piston Specifications
0.020–0.06 mm (0.0008–0.0024 in.)
0.04–0.08 mm (0.0016–0.0031 in.)
0.03–0.07 mm (0.0012–0.0028 in.)
0.15–0.30 mm (0.0059–0.0118 in.)
0.30–0.45 mm (0.0118–0.0177 in.)
0.20–0.70 mm (0.0079–0.0276 in.)
Master Specifications
54.96 mm (2.1638 in.)
54.90 mm (2.1614 in.)
0.15 mm (0.0059 in.)
0.05–0.15 mm (0.002–0.0059 in.)
0.10 mm (0.0039 in.)
0.09 mm (0.0035 in.)
0.17 mm (0.0067 in.)
0.5 mm (0.0197 in.)
0.7 mm (0.0276 in.)
14.0 mm (0.5512 in.)
13.97 mm (0.5500 in.)
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