Onan DJA Series User Manual

DIMENSIONS AND CLEARANCES
All clearances given at room temperature of 70
o
F.
All dimensions in inches unless otherwise specified.
CAMSHAFT
MinimUm Maximum
Bearing Journal Diameter, Front 2.500 2.505
Bearing Journal Diameter, Rear 1.1875 1.1880
Bearing Clearance Limit 0.0012 o!o037
End Play, Camshaft 0.007 0 039
Cam Tappet Hole Diameter 0.7505 0.7515
Cam Tappet Diameter 0.7475 0.7480
CONNECTING RODS
Large Bearing Bore Diameter 2.1871 2.1876
Small Bushing Bore Diameter 1.044 1.045
Distance Center Large Bearing Bore to Small Bushing Bore 5.998 6.002
Clearance, Large Bearing to Crankshaft 0.001 0.003
CYLINDER
Cylinder Bore 3-1/4
Cylinder Diameter Limits 3.2495 3.2505
CRANKSHAFT
Main Bearing Journal Diameter 2.2437 2.2445
Crankshaft Main Bearing Clearance 0.0014 0.0052
Connecting Rod Journal Diameter 2.0597 2!o605
End Play, Crankshaft 0.010 0.015
PISTON
Piston Clearance to Cylinder Wall 0.0055 0.0075
Piston Pin Hole Diameter 0.9900 0.9903
Ring Groove Width, Top 0.097 0.098
2nd
0.0965 o!o975
3rd
0.0965 0.0975
4th
. 0.1880
v
0.1895
PISTON PIN
Len
8
th
2.738 2.753
Diameter
0.9899 0.9901
Piston Clearance Thumb Push Fit
Connecting Rod Bushing Clearance 0.0002 0.0007
PISTON RINGS
Ring Type
. Compression
^ • • Compression
•f^ Compression
4th
• • • • Oil Control
Ring Width
To
P • 0.0925 0.0935
2
nd
0.0925 0.0935
3rd
0.0925 0.0935

Onan DJA Series Specifications

General

Brand	Onan
Model	DJA Series
Category	Engine
Language	English