Onan MJA Series Service Manual page 132

130
TABLE OF DIMENSIONS AND CLEARANCES
All values in inches unless otherwise specified.
PISTON RINGS
Ring Type
Top .................................... .
2nd .................................... .
3rd .................................... .
Ring Width
Top ....... " ........................... .
2nd .................................... .
3rd .................................... .
Piston Ring End Gap " ....................... .
STARTING MOTOR
Rotation .................................... .
Pinion Clearance to Pinion Stop (solenoid plunger
bottomed) .................... " ............ .
Pinion Rest Position - Distance from Pinion
Housing Mounting Face to Outer Edge of Pinion.
Armature End Play .......................... .
Test Specifications
No Load ............................... .
Stall Torque
. . . . . . ,.* . . . . . . . . . . .
~
• • • " . . . . . . . . . .
Brush Spring Tension ........................ .
VALVE, INTAKE
Stem Diameter .............................. ..
, Clearance in Guide ........... ; .............. .
Seat Angle .................................. .
Valve Clearance (MJA) ............. , ... , ..... .
Valve Clearance (MJB) ....................... , .
Valve Clearance (MJC) ....................... .
VALVE, EXHAUST (stellite faced)
Stem Diameter .. , ........................... .
Clearance in Guide .......•...................
Seat Angle ....•.......•......................
Valve Clearance (MJA) ....................... .
Valve Clearance (MJB) ....................... .
Valve Clearance (MJC) ...... ; ......... ; , ..... .
VALVE GUIDE
Length , .................................... .
Outside Diameter ........................... .
Cylinder Block Bore Diameter ..........•......
Inside Diameter (after reaming) Exhaust .. ', .... .
Intake ......... .
Compression
Compression
Oil Control
.0925 - .0935
.0930 - .0935
.1860 -. 1865
.010 - .020
Counterclockwise
.07 - .12
1-9/32 - 1-15/32
.005 - .030
10 Volts - 80 Amps
5000 RPM Min.
4 Volts - 420 Amps
7.8 lb. ft. Min.
32 - 40 ounces
with new brushes
.3405 - .3415
.001 - .003
45
0
.019
See Fig 3. 7. B
.015
.3405 - .3415
.0025 - .0045
45
0
.023
See Fig 3.7.B
.020
1-25/32
.4690 - .4695
.467 - .468
.344 - .345
.342 - .343