Piper Comanche PA-24 Service Manual page 498

PIPER COMANCHE SERVICE MANUAL
LEFT ROTATION
FIGURE 7A-15. LEAD POSITIONING
FIGURE 7A-16. IMPULSE COl·PLll"G
:-';OTE
The mag.neto
sen
ice instructions in this manual are to cover minor
repairs and timing For further repairs and adjustments of the
magnetos. it is recommended that the manufacturers sen Ice
instructions be followed
7 A-70
Remonl Of Magneto.
a l.ift the ,ide panels of the engine cowling
b Disconnect the .. p .. lead from the magneto and the retard breaker lead from the left. -200 senes.
magneto
c Remme the harness outlet plate from the magneto by removing the four attaching screws
d Remove the two nuts and washers securing the magneto to the engine acce»ory housing
e Pull the magneto from the engine
7 A-71
Timing Procedure. (Internal Timing)
-20 and -200 series Magneto Main Breaker Points When
Installing new or adjusting breaker points and before timing the magneto to the engine. it is imponantlhat
the internal timing of the magneto be correct.
a To internallv time the magneto it should be removed from the engine to determine ··E·· gap
b To determine ··E·· gap. find neutral position of the magneto drive bv rotating drive coupling in a
timing inspection hole. At the same location. the drive should feel to haw fallen into a notch or neutral
position
ISSUED:
8/18/72
2D20
POWER
pl.e