Piper CHEROKEE WARRIOR PA-28-151 1995 Maintenance Manual page 251

PIPER CHEROKEE WARRIOR SERVICE MANUAL
3. Fasten the ground wire of an electric timing light to any unpainted metallic portion of the
engine, and one of the positive wires of the timing light to a suitable terminal connected to the ground terminal
connection of the left magneto.
4. Connect the other positive wire of the timing light to a suitable terminal connection of the
right magneto
5. Turn the engine crankshaft several degrees from BTC in direction opposite to that of normal
rotation.
AC timing lights operate in the reverse manner as described
below. The light goes out when the breaker points open.
6. Turn switch of the timing light ON.
7. Turn the crankshaft very slowly in the direction of normal rotation until the timing mark on
the front face of the starter ring gear aligns with the drilled hole in the starter housing. The timing light should
come on, (on battery operated models).
8. If timing light does not illuminate, turn the magneto in its mounting flange slots and repeat the
procedure until the timing light goes ON at 25 degree before top dead center.
9. Tighten the two mounting nuts and replace the bottom vent plug.
d . After both magnetos have been timed leave the timing light wires connected and recheck the
magneto timing as previously described to make sure both magnetos are set to fire together. If timing is correct,
both timing lights will come on simultaneously when the 25 degree mark on the ring gear aligns with the
drilled hole in the starter housing. If the points open early, loosen the mounting nuts and rotate the magneto
counterclockwise. Secure the nuts and remove the timing lights.
8-23. OVERHAUL INSTRUCTIONS FOR SLICK 4200/4300 SERIES MAGNETOS.
The 4200/4300 series magnetos must be completely overhauled at every engine overhaul or when con-
ditions indicate.
8-24. DISASSEMBLY OF SLICK 4200/4300 SERIES MAGNETOS. (Refer to Figure 8-7 and latest
revision of Slick Service Bulletin No. SB2-88A.)
Magneto disassembly is accomplished in the following manner:
Although not required use of the slick T-100 assembly and
t i ming kit is strongly recommended. (Refer to Figure 8-8.)
The tools contained in this kit will greatly facilitate magneto
d i s a ssembly/assembly and help prevent damage to pans.
a. Remove cotter pin, nut, washer and gear. Grasp shell of impulse coupling assembly and gently
pull the assembly outward to clear the unlatching ears.
b. Allow the shell to turn, cautiously releasing spring tension and withdraw the shell and coil spring.
Using slick puller T-106 engaged in the grooves on the impulse hub, pull the assembly off shaft taper and dis-
card. Remove key.
c. Remove four screws, and four washers. Separate the distributor housing sufficiently to disconnect
the condenser lead at the contact breaker assembly.
d. Remove two screws and two washers. Withdraw and discard bearing bar, distributor gear and dis-
tributor block from distributor housing.
Revised: February 28, 1995
Effectivity
NOTE
NOTE
1K11
Island Enterprises
POWER PLANT
Magneto (SLICK)