TM 5-3810-207-20/TO 36C23-3-37-12
Figure 10. Distributor, removal and installation.
obtain a reading on the meter. When an
instrument is used, test another coil which
is known to be good. The two coils should
have the same reading on the meter.
Note.
Do not touch the test instrument to
the unit as the case is internally
grounded and a faulty reading will
occur.
d.
Reassembly and Installation.
(1)
Reassemble the distributor in the reverse
order illustrated on figure 11.
(2)
Adjust the points as instructed on figure
11.
(3)
Lubricate the distributor (LO 5-3810-207-
20).
(4)
Install the distributor (par. 74).
e.
Engine Timing.
(1)
Loosen screw and raise cover (fig. 12).
(2)
Disconnect spark plug cable from spark
plug installed in number 1 cylinder.
(3)
Connect a neon timing light between
number 1 spark plug and cable.
(4)
Loosen the distributor mounting screws
and start the engine.
(5)
Hold the timing light directly in front of the
flywheel opening in the flywheel housing.
(6)
Rotate the distributor in either direction
until the timing mark alines with the center
of the hole in the flywheel housing.
Tighten the distributor mounting screws.
Repeat adjustment as necessary.
(7)
Stop the engine, disconnect the neon
light, and connect the spark cable to the
spark plug.
(8)
Close the cover and tighten the screw (fig.
12).
76. Spark Plugs and Cables
a.
Removal.
(1)
Remove all dirt and foreign matter from
the cylinder head around the spark plug
openings.
(2)
Remove the cables and spark plugs as
instructed on figure 13.
b.
Cleaning and Inspection.
(1)
Clean the spark plugs -and cables with a
lint-free cloth dampened with an approved
cleaning solvent and dry thoroughly.
Clean the spark plug points with an
approved spark plug cleaning machine.
(2)
Inspect the insulators for chips and
cracks. Replace plugs having defective
insulators.
(3)
Inspect the electrodes for burns, pits, and
alinement. Replace defective plugs.
Note.
The outside or grounded electrode
must be directly alined with the
inside or insulated electrode.
(4)
Inspect
the
spark
plug
cables
for
corrosion, frayed or broken insulation or
shielding,
and
proper
connection.
Replace defective cables.
38
