Figure 8-22 Installation in Housing Figure 8-23 Securing Wire in Housing
i. On spark plug end of wire install M-1458 Male Tapered Drive Ferrule over silicone insulation and under
shielding to within .062 inch from flange of ferrule. Make certain that shielding is away from ferrule flange then
slide Ferrule M-1671 over the M-1458 Drive Ferrule until tight. Refer to Figure 8-20.
j. For spark plug end, mount M-1747 Drive Plate in a bench vise. Set the hex ferrule in the slot of the drive
plate. Drive the M-1458 Drive Ferrule flush against the hex ferrule using the M-1744 Drive Tool. Refer to
Figure 8-21.
k. For magneto end of wire, insert wire through appropriate hole in the M-1569 Plug Wire housing so the
shielding is through the hole as shown in Figure 8-22.
1. Install an M-1458 Male Tapered Drive Ferrule over insulation and under shielding as in step "i" then drive
m. Clamp the threaded end of the M-1498 Electrode Screw in theM-1742 Pin Vise. lnsert the tapered pin of
the electrode screw into the center of the coiled conductor by turning the pin vise counterclockwise and pushing
at the same time until the screw is flush with the insulation. This is done at both ends of the wire assembly.
Refer to Figure 8-24.
n. On the magneto end of the wire, place M-1738 Insulator Sleeve (brown, 0.75 inch long) over the silicone
o. Turn M-1455 Spring clockwise on the electrode screw three full turns until the end is flush with the first
large coil of the spring. This applies to both ends of the wire. Refer to Figure 8-26.
A389
M - 1569
A390
M - 1458
PIPER AIRCRAFT
PA-28-161 CADET
AIRPLANE MAINTENANCE MANUAL
Issued: FEBRUARY. 28, 1989
POWER PLANT
1K8
