Generac Power Systems OHVI GSH 190, Service Manual

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15-4
SeCTIoN 15: SPeCIFICATIoNS - lArGe FrAMe eNGINeS
CAMSHAFT
ASSeMblY
Model GN-320 GN-360 GN/GSH-410
MAIN CAMSHAFT BEARING
DIAMETER (FLYWHEEL END) .08-.082 inch
(27.6-27.8 mm)
.08-.082 inch
(27.6-27.8 mm)
.08-.082 inch
(27.6-27.8 mm)
MAIN CAMSHAFT BEARING
DIAMETER (PTO END) .297-.298 inch
(2.96-2.98 mm)
.297-.298 inch
(2.96-2.98 mm)
.297-.298 inch
(2.96-2.98 mm)
CAM LIFT
0.2 inch
(5.6 mm)
0.2 inch
(5.6 mm)
0.2 inch
(5.6 mm)
BASE CIRCLE DIAMETER OF
CAM .02 inch
(26.00 mm)
.02 inch
(26.00 mm)
.02 inch
(26.00 mm)
COMPRESSION RELEASE LIFT
(MEASURED AT TAPPET) 0.02-0.0 inch
(0.595-0.885 mm)
0.02-0.0 inch
(0.595-0.885 mm)
0.02-0.0 inch
(0.595-0.885 mm)
bAlANCer ASSeMblY
Model GN-320 GN-360 GN/GSH-410
MAIN BALANCER BEARING
DIAMETER (FLYWHEEL END) 0.982-0.98 inch
(2.96-2.98 mm)
0.982-0.98 inch
(2.96-2.98 mm)
0.982-0.98 inch
(2.96-2.98 mm)
MAIN BALANCER BEARING
DIAMETER (PTO END) 0.982-0.98 inch
(2.96-2.98 mm)
0.982-0.98 inch
(2.96-2.98 mm)
0.982-0.98 inch
(2.96-2.98 mm)
oIl PuMP
Model GN-320 GN-360 GN/GSH-410
PUMP TIP CLEARANCE *
0.022-0.02 inch
(0.-0. mm)
0.022-0.02 inch
(0.-0. mm)
0.022-0.02 inch
(0.-0. mm)
INNER ROTOR BORE
0.886 inch
(22.5 mm)
0.886 inch
(22.5 mm)
0.886 inch
(22.5 mm)
INNER ROTOR THICKNESS
0.7-0.72 inch
(.98-2.00 mm)
0.7-0.72 inch
(.98-2.00 mm)
0.7-0.72 inch
(.98-2.00 mm)
INNER ROTOR INNER
DIAMETER 0.886 inch
(22.5 mm)
0.886 inch
(22.5 mm)
0.886 inch
(22.5 mm)
OUTER ROTOR OUTSIDE
DIAMETER: .296-.297 inch
(2.92-2.95 mm)
.296-.297 inch
(2.92-2.95 mm)
.296-.297 inch
(2.92-2.95 mm)
OUTER ROTOR THICKNESS
0.72-0.7 inch
(2.00-2.0 mm)
0.72-0.7 inch
(2.00-2.0 mm)
0.72-0.7 inch
(2.00-2.0 mm)
OIL PRESSURE RELIEF VALVE
SPRING FREE LENGTH 0.928 inch
(2.57 mm)
0.928 inch
(2.57 mm)
0.928 inch
(2.57 mm)
*NOTE 2: Measure pump tip clearance with rotor on shaft in crankcase cover.
0C1103Arev0.indd 4 6/22/2006 10:51:58 AM