PIPER AIRCRAFT, INC.
PA-28-161, WARRIOR III
MAINTENANCE MANUAL
PAGE 11
Nov 30/06
5C17
74-10-00
D. Disassembly (see Figures 8 and 9.)
NOTE: Use of the Slick T-100 Assembly and Timing Kit (Figure 8) is strongly recommended. The
tools contained in this kit will greatly facilitate magneto disassembly/assembly and help
prevent damage to parts.
(1) Remove impulse coupling:
CAUTION
: THE SHELL OF THE IMPULSE COUPLING ASSEMBLY IS UNDER
CONSIDERABLE SPRING TENSION.
(a) Remove cotter pin, nut, washer and bushing; and drive gear, where applicable.
(b) Firmly holding the shell of the impulse coupling assembly, gently pull shell of impulse
coupling assembly out enough to clear the latching ears of the impulse hub assembly.
(c) Turn shell to release spring tension. Remove shell and attached impulse spring.
(d) Engage T-106 hub puller into grooves in the hub assembly. Tighten T-106 puller bolt to
remove impulse coupling hub assembly.
(2) Remove Woodruff key by prying key from rotor shaft using pliers.
(3) Remove distributor housing assembly
(a) Remove three long screws and single short screw from distributor housing.
(b) Separate distributor housing from magneto frame.
(c) Disconnect condenser lead from contact breaker assembly.
(4) Remove the distributor block assembly by removing two screws and remove distributor bearing
bar, distributor gear and distributor block from the housing.
(5) Remove condenser. When removing the condenser from the distributor housing, carefully
rotate the condenser wire counterclockwise in the same direction as the condenser to
eliminate twisting the condenser lead.
(6) Remove rotor gear by prying it out of the end of the rotor assembly using two flat-blade
screwdrivers.
(7) Remove contact breaker assembly - Impulse Coupled and Direct Drive Magnetos
(a) Disconnect coil lead wire from contact breaker assembly.
(b) Remove screws and washers from breaker assembly.
(c) Remove contact breaker assembly from bearing cap.
(d) Remove cam by prying straight up with a screwdriver blade.
(8) Remove rotor assembly
CA
UTION: DO NOT ALLOW ROTOR TO COME INTO CONTACT WITH METAL CHIPS OR
FILINGS. ROTOR IS MAGNETIZED.
(a) Remove two screws and two bearing plate clamps.
(b) Press against the drive end of the rotor shaft and withdraw the rotor and bearing cap
assembly from the drive frame.