Onan DJA Series User Manual

VALVE INTAKE (Hardened Chrome Alloy Faced)
Stem Diameter ; . 0.3405 0.3415
Clearance in Guide 0.0005 0.0025
Seat Angle 42
0
Valve Clearance 0.011
VALVE, EXHAUST (Hardened Chrome Alloy)
Stem Diameter 0.3405 0.3415
Clearance in Guide 0.0025 0.0045
Seat Angle 45
0
Valve Clearance 0.008
VALVE GUIDE
Length 1-25/32
Outside Diameter 0.4690 0.4695
Cylinder Block Bore Diameter 0.467 0.468
Inside Diameter (after reaming)
Exhaust 0.344 0.345
Intake 0.342 0.343
VALVE SEATS (Hardened Chrome Alloy Faced)
Valve Seat Bore
Diameter 1.361 1.362
Depth (from cylinder head face) 0.433 0.439
Seat Outside Diameter 1.364 1.365
Seat Width 3/64 1/16
Seat Angle 45°
Available Oversizes 0.002 , 0.005 , 0.010, 0.025
VALVE SPRINGS
Free Length 1-7/8
Length, Valve Closed 1.528
Load, Valve Closed 45 lbs. 49 lbs.
Length, Valve Open 1.214
Load, Valve Open 83 lbs. 93 lbs.
STARTING MOTOR
Rotation Counterclockwise
Pinion Clearance to Pinion Stop (solenoid plunger bottomed) 0.070 0.120
Pinion Rest Position - Distance from pinion housing mounting face to outer
edge of pinion 1-9/32 1-15/32
Armature End Play 005 .030
Test Specifications
No Load 10 volts - 80 amps
5000 rpm per Min.
Stall Torque 4 volts - 420 amps
7.8 ft. lbs. per Min.
Brush Spring Tension 32 - 40oz. with
new brushes

Onan DJA Series Specifications

General

Brand	Onan
Model	DJA Series
Category	Engine
Language	English