Figure 4-22. Magneto-to-spark plug connections.

Figure 4-22. Magneto-to-spark plug connections.

One bushing is in the bearing plate (27) and the other is in the distributor housing (7).

(8) Install the distributor gear (8), making sure the timing marks are a lined as shown in figure 4-24.

(9) Install the breaker point assembly (14) loosely on the rotor bearing plate (28), using the screws (10 and

11), lock washers (12), and flat washer (13).

(10) Slowly rotate the magneto rotor shaft while attempting to insert a 6 penny nail in the timing hole of the

magneto frame. With the nail inserted and with the rotor held in this position, adjust the position of the contact points so

that the points are just starting to open. This provides the required point gap for the magneto. Tighten the breaker point

screws (10 and 11) to maintain this setting.

(11) Install a new capacitor (4) with a new preformed packing (5) in the distributor housing (7). Tighten the

capacitor with a spanner wrench.

(12) Position the distributor housing (7) on the magneto frame, using new housing gaskets (6). Be sure to

connect the capacitor lead to the terminal of the breaker point assembly. Secure the housing with four screws (1 and 2)

and lock washers (3).

(13) Install the magneto as directed in subparagraph f below.

c. Disassembly. Disassemble the magneto far enough to install the parts included in the major repair kit, following the

sequence indicated in figure 4-23. Note the following:

(1) After removing the screws (1 and 2) and lock washers (3), pull the distributor housing far enough away

from the magneto frame (38) to disconnect the lead of the capacitor (4) from the breaker point assembly (14).

Caution: Do not attempt to remove the capacitor (4) from the distributor housing (7) before disconnecting the

capacitor lead.

(2) Use a spanner wrench to unscrew the capacitor from the distributor housing. Remove the preformed

packing (5).

(3) Remove the distributor housing gaskets (6) from the distributor housing.

(4) Pull the distributor gear (8) from the bearing plate (27). Do not remove the brush (9) from the distributor

gear unless inspection indicates that it is excessively worn.

(5) Remove the screws (10 and 11) lock washers (12), and washer (13) that retain the breaker point assembly

(14) to the rotor bearing plate (28); remove and discard the breaker point assembly.

(6) Remove the retaining ring (15) and use two screwdrivers inserted under opposite sides of the rotor shaft

gear (17). Pry the gear and break cam assembly from the rotor shaft.

(7) Remove the pal nut (18) and impulse coupling nut (19) from the drive end of the rotor shaft (33). Remove

the shell (20) and spring (21) as an assembly.

(8) Use a puller to remove the hub (22) from the rotor shaft (33).

(9) To remove the bearing (30) from the rotor bearing plate (28), pry out the expanding washer (29) and

remove the bearing and bearing washer (31). Similarly, remove the bearing (35) from the magneto frame (38).

(10) Press the seal (37) from the magneto frame.

d. Cleaning and Inspection.

(1) If a repair kit is available and is being installed, discard all removed parts which have replacements in the

kit. Clean the remaining metallic parts with cleaning solvent (fed. spec. P-D680); dry thoroughly. Clean nonmetallic

parts with a cloth dampened lightly with solvent. Take care to prevent saturating the coil in the magneto frame.

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