Generac Power Systems 941-2 - Manual (Page 140)

Part 8
SPECIFICATIONS & CHARTS
Page 8-8
CAMSHAFT ASSEMBLY
MODEL GV-220
MAIN CAMSHAFT
BEARING DIAMETER
(FLYWHEEL END):
DESIGN DIAMETER
1.022-1.023 inch
(25.96-25.98mm)
MAIN CAMSHAFT
BEARING DIAMETER
(PTO END):
DESIGN DIAMETER
1.297-1.298 inch
(32.96-32.98mm)
CAM LIFT:
DESIGN LIFT
0.210-0.212 inch
(5.34-5.38mm)
BASE CIRCLE
DIAMETER OF CAM:
DESIGN DIAMETER
0.978-0.990 inch
(24.85-25.15mm)
COMPRESSION
RELEASE LIFT
(MEASURED AT TAPPET):
DESIGN LIFT
0.027-0.055 inch
(0.70-1.40mm)
OIL PUMP
MODEL GV-220
PUMP TIP CLEARANCE *:
DESIGN CLEARANCE
0.0000-0.0010 inch
(0.000-0.025mm)
INNER ROTOR BORE:
DESIGN BORE
0.354-0.355 inch
(9.000-9.019mm)
INNER ROTOR THICKNESS:
DESIGN THICKNESS
0.312-0.315 inch
(7.95-8.00mm)
OUTER ROTOR
OUTSIDE DIAMETER:
DESIGN DIAMETER
1.296-1.297 inch
(32.92-32.95mm)
OUTER ROTOR
THICKNESS:
DESIGN THICKNESS
0.314-0.316 inch
(8.000-8.025mm)
*NOTE 2: Measure pump tip clearance on shaft in crankcase cover.