Checking Flyweight Axial Wear With Drill Shank; Checking Flyweight Radial Wear With Gauge - Piper Dakota Maintenance Manual

Figure 74-13. Checking Flyweight Axial
Wear with Drill Shank
b. Hold magneto as shown in figure 74-11. Pull heel of flyweight outward with fabricated hooked
wire and make certain that a feeler gauge of 0.015 of an inch minimum thickness will pass
between stop pin and highest point of flyweight.
A true and accurate check of clearance between flyweights and
stop pins can only be obtained by pulling flyweight outward as
described. Do not attempt the check by pushing in on the
flyweight at point A of figure 74-11.
2. Inspect impulse coupling stop pins for damage. If pins are bent, damaged or excessively worn, remove
pins using a suitable drift and arbor press. Press new pins into flange until dimension shown in figure
74-12 is obtained.
3. Visually inspect flyweight securing washers and flyweights, particularly in area around axle hole for
cracks. Grip washers with pliers and exert moderate turning force to check looseness. If washer moves
or any cracks are found, reject cam assembly.
PIPER AIRCRAFT
PA-28-236
MAINTENANCE MANUAL
Figure 74-14. Checking Flyweight Radial
—NOTE—
2J10
Wear with Gauge
Page - 74-14
Reissued: August 1, 1986
74 - 12 - 00