Generac Power Systems GN190H Service And Repair Manual page 59

MODEL
WRIST PIN BORE
DIAMETER:
DESIGN DIAMETER
TOP RING GROOVE
WIDTH:
DESIGN WIDTH
SECOND RING
GROOVE WIDTH:
DESIGN WIDTH
OIL CONTROL RING
GROOVE WIDTH:
DESIGN WIDTH
TOP RING WIDTH:
DESIGN WIDTH
TOP RING END GAP: *
DESIGN END GAP
SECOND RING WIDTH:
DESIGN WIDTH
SECOND RING END GAP: *
DESIGN END GAP
OIL CONTROL RING
WIDTH:
DESIGN WIDTH
OIL CONTROL RING
END GAP: *
DESIGN END GAP
*NOTE 1: Measure end gap with ring pushed down in cylinder to depth of 2.75 inches
PISTON (CONTINUED)
GN-190
0.708-0.709 inch
(18.000-18.011mm)
0.059-0.061 inch
(1.52-1.54mm)
0.059-0.061 inch
(1.52-1.54mm)
0.118-0.119 inch
(3.01-3.03mm)
0.057-0.059 inch
(1.47-1.49mm)
0.005-0.016 inch
(0.15-0.40mm)
0.057-0.059 inch
(1.465-1.490mm)
0.006-0.016 inch
(0.15-0.40mm)
0.111-0.118 inch
(2.825-3.003mm)
0.015-0.055 inch
(0.38-1.40mm)
GN-191
0.708-0.709 inch
(18.000-18.011mm)
0.059-0.061 inch
(1.52-1.54mm)
0.059-0.061 inch
(1.52-1.54mm)
0.118-0.119 inch
(3.01-3.03mm)
0.057-0.059 inch
(1.47-1.49mm)
0.005-0.016 inch
(0.15-0.40mm)
0.057-0.059 inch
( 1.465-1.490mm)
0.006-0.016 inch
(0.15-0.40mm)
0.111-0.118 inch
(2.825-3.003mm)
0.015-0.055 inch
( 0.38-1.40mm)
57
SPECIFICATIONS
GN-220
0.708-0.709 inch
(18.000-18.011mm)
0.059-0.061 inch
(1.52-1.54mm)
0.059-0.061 inch
(1.52-1.54mm)
0.118-0.119 inch
(3.01-3.03mm)
0.057-0.059 inch
(1.47-1.49mm)
0.005-0.016 inch
(0.15-0.40mm)
0.057-0.059 inch
( 1.465-1.490mm)
0.006-0.016 inch
(0.15-0.40mm)
0.111-0.118 inch
(2.825-3.003mm)
0.015-0.055 inch
( 0.38-1.40mm)