Onan NHE - Section 3 - Dimensions and Clearances

.
CYLINDERS AND
PISTON ASSEMBLY
Cylinder Bore
(Std. Size honed)
Cylinder Taper
(Max)
Section 3 - Dimensions/Clearances
Dimensions not in parentheses are
INCHES
3.5625-3.5635
(90.488-90.513 rnm)
0.003
(0.076 mm)
Models
Clearance in
Cy1 i nder
6.5 NHEAND6.3 NHEL
0.0070-0.0090
(0.1 78-0.229 rnm)
Piston Ring #2
Groove Width
Piston Ring #3
Groove Width
Piston Ring #1
(Top)
Side Clearance
Piston Pin
Diameter
Piston Pin Fit
In Rod
Connecting Rod
Side Clearance
Cylinder Out
of
Round (Max)
0.080-0.081
(2.032-2.057 mrn)
(4.775-4.801 mrn)
(0.051-0.203 mrn)
(19.05-19.06 mrn)
(0.001-0.014 mrn)
(0.051-0.406 mrn)
0.188-0.1 89
0.002-0.008
0.7500-0.7502
0.00005-0.00055
0.0020-0.01 60
0.003
(0.076 rnm)
Ring Gap
0.01
00-0.0200
(0.254-0.508 mm)
Piston Ring #1 (top)
Groove Width
0.080-0.081
(2.032-2.057 mm)
Connecting Rod
Bearing Clearance
0.0005-0.0028
(0.013-0.071 mrn)
Dimensions not
in parentheses are
I INCHES
CRANKSHAFT AND
CAMSHAFT
Crankshaft Main Bearing
Journal Diameter
1.9992-2.0000
(50.780-50.800 rnm)
Crankshaft
Rod Journal
Bearing Diameter
1.6252-1.6260
(41.280-41.300)
Crankshaft Main
Bearing Diameter
2.001 5-2.0040
(50.838-50.902 mm)
3-1
Redistribution or publication of this document
by any means, is strictly prohibited.
Redistribution or publication of this document
by any means, is strictly prohibited.