Use a spark-plug socket wrench to tighten the spark plug. The proper torque reading is 26 to 30 ft-lb.
(3) Connect the cables (6 and 7) and adapter elbow (5) with the spark plug (2) and tighten the adapter elbow nut (4).
118. Ignition Cables
a. Description. The high tension ignition cables (6) are encased in the shielded cables (7). The shielded cables (7)
are attached to the spark plugs (2) and magneto by cable nuts (4 and 8). It is important to check the shielding frequently
and keep the nuts tight.
b. Removal.
(1) Unscrew the adapter elbow nut (8) and disconnect the cables (6 and 7) from the adapter elbow (5).
(2) Unscrew the nut (9) attaching the shielded cable (7) to the magneto and disconnect the shielded cable from the
magneto.
(3) Pull out the ignition cable (6) from the magneto.
(4) Thread the cables (6 and 7) through the holes in their support brackets mounted on cylinder head and timing gear
cover. Remove the cables from the engine.
(5) Pull out the ignition cable (6) from the shielded cable (7).
c. Inspection. Inspect the shielded cables for breaks, fraying, or cuts. See that the nut threads are clean and not
stripped or damaged. Check the insulation of the ignition cable for swollen, peeling, cut, or oil-soaked rubber insulation.
Replace the cables if necessary.
d. Installation.
(1) Push the ignition cable (6) into the shielded cable (7). Refer to table V for cable dimensions
Table V. Length of the Ignition and Shielded Cables.
Cable length in inches
Cable length in inches
Cylinder No.'
Cylinder No.
Ignition
Shielded
Ignition
Shielded
cable
cable
cable
cable
1----------------
21“
20
4----------------
32
29
5/8
2----------------
26
23
5----------------
35“
34
5/8
3----------------
30
27
6----------------
41
38
(2) Thread the cables (6 and 7) through the holes in their support brackets mounted on the cylinder head and timing
gear cover.
(3) Connect the cables (6 and 7) with the magneto and tighten the cable nut (9).
(4) Connect the cables with the adapter elbow (5) and tighten the cable nut (8).
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