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Onan DJA Series - Specifications

Onan DJA Series
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SPECIFICATIONS
Nominal
dimensions of engine (inches)
Height
24-1/2
Width
19.1/8
Length.
. 28-3/16
Approximate
Weight (pounds) 230
Number of Cylinders 1
Displacement (cubic inch) 30
Bore
3.I/4
Stroke 3.5/8
HP
at 2400rpm (nominal) 7.3
Compression Ratio 191
Main
Bearings are Steel-Backed Bronze, Precision Type for Replacement (quantity) 2
Connecting Rod Bearings
Tri-Metal
Replaceable
Yes
Piston Rings (chrome plated)
Oil
Control 1
Compression 3
Hardened Chrome
Alloy
Faced Valves Yes
Hardened Chrome
Replaceable
Valve
Seats
Yes
Valve
Rotator Yes
Governor (internal
flyball
type - externally adjustable) Yes
Governor Regulation (percent) 5
Nominal
Battery Voltage [ 12
Battery
Size
SAE
Group IH T
wo
Amp/Hr.
SAE 20Hr. (nominal)
.............]
105
Solenoid
Shift
Starter Yes
Engine cooling air CFM at 2400
rpm
* 560
Total
cubic feet per minute of air required 613.8
Combustion
Air CFM at 2400 rpm - 21
Inlet
Vent (sq. ft.) 7
Outlet
Vent (sq. in.) * 64
Glow
Plug and Air Heater to Aid Starting Yes
Injection
Pump (American Bosch) . . . PLB
Primary
and Secondary Fuel Filters Yes
Fuel
Pump
Lift
_ 5ft
Oil
Pump (Gear Type) Yes
Oil
Filter
(Full
Flow)
" Yes
Oil
Capacity (U.S. quarts) f . 2-1/2
Exhaust Connection (Pipe-Tapped) 1-1/4
Power
Take-off
(inches)
Shaft Length 4
Shaft Diameter 1-3/4
Keyway
Length 3
Keyway
Width
. 3/8
Keyway
Depth 3/I6
-
Pressure-cooled
type air
flow.
*
- Area when ventiduct is
used;
without
duct, make vent as large as possible,
t
- Add 1/2 quart for oil
filter.

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