Engine Specifications; Cylinder Bore; Oil Pump; Piston Bore Clearance - Mercury MerCruiser Service Manual

Description
Block
Rods
Crankshaft
Pistons
Camshaft
Intake manifold

Engine Specifications

Cylinder Head
Description
Surface flatness

Cylinder Bore

Description
Diameter
Out of round
Taper

Oil Pump

Description
Oil pump dowel pin

Piston Bore Clearance

Description
Production

Piston Rings

Top Compression
Description
Groove clearance
Gap
Second Compression
Description
Groove clearance
Gap
90-8M0099748 eng DECEMBER 2015
Cast iron (two bolt main bearing caps)
At exhaust manifold deck
At engine block deck with
an 150 mm (5.90 in.) area
At intake manifold deck
Intake manifold flatness
Production
Service
Production—thrust side
Production—relief side
Service
Production
Production
Production
Production
© 2016 Mercury Marine
Engine Inspection and Assembly
Specification
Forged steel
Forged steel
Cast aluminum
Steel
Aluminum
6.2 Liter (377 cid)
0.05 mm (0.0020 in.)
0.05 mm (0.0020 in.)
0.10 mm (0.0039 in.)
0.10 mm (0.0039 in.)
6.2 Liter (377 cid)
101.009–101.018 mm (3.976–3.977 in.)
0.012 mm (0.0005 in.) maximum
0.05 mm (0.0020 in.)
0.012 mm (0.0005 in.) maximum
0.025 mm (0.0010 in.) maximum
0.025 mm (0.0010 in.) over production
Height
8.067–9.683 mm (0.3175–0.3812 in.)
6.2 Liter (377 cid)
0.055–0.083 mm (0.0022–0.0032 in.)
6.2 Liter (377 cid)
0.030–0.075 mm (0.0012–0.0029 in.)
0.38–0.52 mm (0.015–0.020 in.)
6.2 Liter (377 cid)
0.020–0.060 mm (0.0008–0.0023 in.)
0.63–0.82 mm (0.025–0.032 in.)
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