Piper SARATOGA PA-32-301 Maintenance Manual page 515

PIPER AIRCRAFT
PA-32-301/301T
MAINTENANCE MANUAL
2798 239
Figure 74-6. Painted Tooth Centered
in Timing Window
Figure 74-7. Timing Mark on Rotor
Aligned with Pointer
8. Install the magneto to engine gasket on the magneto flange.
9. Feel the magnet into its No. I neutral position as described in Step 7. With the engine in its
recommended No. I cylinder firing position of 20
°
BTDC. place the magneto in position on the engine
mounting pad and secure with the flange clamps finger tight.
10. Install short adapter leads made from Bendix terminal kit (part number 10-382698) into magneto
switch terminals and connect to Bendix timing light (part number 11-9110) or equivalent.
11. Bump the magneto in the direction opposite the normal shaft rotation until the first breaker opens.
Due to normal tolerances. one breaker may open slightly before the other and timing should be done to the
first or early breaker. Evenly tighten the magneto mounting clamps.
12. When the final timing check is done. back the engine up approximately 10 degrees: then carefully
bump the engine forward and observe the position that the breakers open. The first breaker should open at the
No. I engine firing position and the late breaker must open within 3 engine degrees from the first breaker
opening. It makes no difference which breaker opens first.
13. Repeat Step I I if necessary until conditions of Step 12 are met. If the late breaker opens more than 3
degrees from the early one. the internal timing of the magneto must be rechecked. (Refer to Internal Timing.)
14. Torque the magneto securing clamps to 150 inch-pounds. Recheck timing once more and if
satisfactory disconnect the timing light and remove the adapter leads.
15. Reinstall the plugs in the timing inspection holes and torque to 12-15 inch-pounds. Loosely install the
harness with clamps and or brackets.
74-10-03
Page 74-08
Issued: January 2. 1980
2K8