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Part 8
SPECIFICATIONS & CHARTS
Page 8-5
CRANKCASE ASSEMBLY
MODEL GV-220
CYLINDER BORE:
DESIGN DIAMETER 2.953-2.954 inch
(75.000-75.025mm)
VALVE TAPPET BORE:
DESIGN DIAMETER 0.295-0.296 inch
(7.494-7.520mm)
CRANKSHAFT SLEEVE
BEARING:
DESIGN DIAMETER 1.104-1.106 inch
*(WHERE APPLICABLE) (28.044-28.099mm)
GOVERNOR ARM
BORE:
DESIGN DIAMETER 0.239-0.240 inch
(6.07-6.10mm)
CAMSHAFT BEARING:
DESIGN DIAMETER 1.024-1.025 inch
(26.00-26.03mm)
GOVERNOR ARM
DIAMETER:
DESIGN DIAMETER: 0.235-0.237 inch
(5.97-6.03mm)
CRANKCASE COVER ASSEMBLY
MODEL GV-220
CRANKSHAFT BEARING
BORE:
DESIGN DIAMETER 1.104-1.105 inch
(28.040-28.065mm)
CAMSHAFT BEARING
BORE:
DESIGN DIAMETER 1.299-1.300 inch
(33.00-33.03mm)
GOVERNOR GEAR
SHAFT DIAMETER 0.236-0.237 inch
(6.004-6.012mm)
OIL PUMP INNER ROTOR
SHAFT DIAMETER:
DESIGN DIAMETER 0.353-0.354 inch
(8.969-8.987mm)
*Later model small frame GN engines have no crankshaft sleeve bearing.