9-2. IGNITION REPLACEMENT
CLEANING AND INSPECTION
Dry cleaning solvent, P-D-680, is toxic and
flammable. Always wear protective goggles
and gloves, and use only In a well-ventilated
area. Avoid contact with skin, eyes, and
clothes, and DO NOT breathe vapors. DO
NOT use near open flame or excessive heat.
The solvents flash point is 100°F-138°F
(38°C-590C). If you become dizzy while us-
ing cleaning solvent, Immediately get fresh
air and medical help. If solvent contacts
eyes, immediately wash your eyes and get
Compressed air used for cleaning or drying
purposes, or for clearing restrictions, should
never exceed 30 psi (207 kPa). Wear protec-
tive clothing (goggleslshieid, gloves, etc.)
and use caution to avoid injury to personnel.
Clean flywheel and crankshaft with dry cleaning sol-
vent (item 16, Appendix E) and dry with compressed
Inspect flywheel for cracks and breaks. Replace fly-
wheel if cracked or broken.
Using a pencil (item 14, Appendix E), draw three ver-
tical lines on tapered end of crankshaft approximate-
ly 120° apart.
Install flywheel on crankshaft and turn clockwise one
full turn. Remove flywheel.
Inspect vertical lines on crankshaft. if 80% or more of
the lines are rubbed off, contact is acceptable.
Perform steps f through h only If flywheel con-
tact is not within specification.
Apply an even, light coat of lapping compound
(item 8, Appendix E) on crankshaft.
install flywheel on crankshaft and gentl`y rotate fly-
wheel ¼ turn back and forth on crankshaft. Repeat
every 90° until entire crankshaft has been covered.
Remove flywheel from crankshaft and wipe lapping
compound with clean rag (item 15, Appendix E).
Using multimeter, test capacitor. Multimeter should
show low resistance at first and then a quick rise to a
high value. Replace capacitor if reading is not as
Using multimeter, test resistance of coil assembly.
Resistance reading should be 0.7-0.9 ohms. Re-
place coil assembly if reading is not within specifica-
Refer to Figure 9-2, Stator Plate Replacement,
for steps a through i.
Install can (21) on crankshaft (20).
install stator plate (23) on crankshaft support (6) with
two screws (24).
install cam (17).
install contact set (26) on stator pi ate (23) with screw
Using feeler gage, set breaker point to 0.020 in.
install coil assembly(19) and spring wedge (18) on
stator plate (23).
install capacitor (33) on stator plate (23) with screw
install two connectors (15 and 16), capacitor (33)
and connector (13) on stator plate (23) with screw
(22), new lockwasher (12), and nut (11).
install capacitor wire lead (14) on connector (13).
install new gasket (28) and cover (29) on stator plate
(23) with breaker cover spring (25).