4. If the distributor block was removed from the housing, the distributor gear alignment and internal
check may be accomplished as follows:
A. Turn rotating magnet in direction of rotation until it is located in firing position (keyway up and
points just opening). Tighten adjusting knob of 11-8465 Rotor Holding Tool. Apply a light coating
of Bendix Grease P/N 10-27165 to teeth of distributor gear, if needed. The large distributor gear
incorporates four timing marks, L and LB for left-hand rotation and R and RB for right-hand
rotation.
B. With distributor gear assembled to block, turn gear until raised rib on block lines up between the L
and LB marks. Assemble block and gear into housing, meshing the distributor gears together. The
rib should favor the L mark, if possible. (Refer to Figure 74-26.)
C. Secure distributor block to housing with studs and washers. Tighten studs finger tight. Loosen the
11-8465 Rotor Holding Tool and turn rotating magnet in reverse direction of rotation until timing
light indicates contact assembly had just opened and check to make certain timing marks align
within tolerance indicated above. Tighten block securing studs, first to 4-8 inch-pounds torque and
then final torque to 20 inch-pounds.
D. Insert the tip of your small finger through timing hole in housing and against large distributor gear
teeth. Rock distributor gear back and forth slightly. There must be perceptible backlash between
teeth of large and small gears. This check should be made at three different points, 120° apart on
gear. If backlash is not evident, replace large distributor gear.
E. Install the breaker cover and complete reassembly of the magneto. Refer to the manufacturer’s
publications for complete disassembly and reassembly procedures.
5. On the magneto employing the impulse coupling, check clearance between each flyweight and each
stop pin as follows:
A. Bend the end of a stiff piece of wire into a right angle 1/8 inch long (maximum).
B. Hold magneto as shown in Figure 74-27. Pull heel of flyweight outward with the hooked wire and
make certain that feeler gauge of 0.010 inch minimum thickness will pass between stop pin and
the highest point of the flyweight.
—NOTE—
A true and accurate check of the clearance between flyweight
and stop pin can only be obtained by pulling the flyweight
outward as described above. Do not attempt the check by pushing
in on flyweight at point “A. ”
6. Install and time magneto, removed from engine, in accordance with Installation and Timing Procedure
7. Secure external switch leads to the breaker cover terminals. Connect harness assembly to the magneto.
Effectivity
74-11-03
PA-28RT-201
Page 74-27
December 1, 1978
3E12
PIPER AIRCRAFT
PA-28RT-201 / 201T
MAINTENANCE MANUAL
Summary of Contents for Arrow IV
Page 18: ...CHAPTER AIRWORTHINESS LIMITATIONS 1A18...
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Page 22: ...CHAPTER TIME LIMITS MAINT CHECKS 1A22...
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Page 40: ...CHAPTER DIMENSIONS AND AREAS 1B16...
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Page 53: ...CHAPTER LIFTING AND SHORING 1C5...
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Page 57: ...CHAPTER LEVELING AND WEIGHING 1C9...
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Page 62: ...CHAPTER TOWING AND TAXIING 1C14...
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Page 66: ...CHAPTER PARKING AND MOORING 1C18...
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Page 70: ...CHAPTER REQUIRED PLACARDS 1C22...
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Page 77: ...CHAPTER SERVICING 1D5...
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Page 110: ...CHAPTER STANDARD PRACTICES AIRFRAME 1E14...
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Page 117: ...CHAPTER ENVIRONMENTAL SYSTEM 1E21...
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Page 169: ...CHAPTER AUTO FLIGHT 1H1...
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Page 176: ...CHAPTER COMMUNICATIONS 1H8...
Page 185: ...CHAPTER ELECTRICAL POWER 1H17...
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Page 233: ...CHAPTER FLIGHT CONTROLS 1J17...
Page 297: ...CHAPTER FUEL 2A18...
Page 320: ...CHAPTER HYDRAULIC POWER 2B17...
Page 355: ...CHAPTER LANDING GEAR 2D4...
Page 418: ...CHAPTER LIGHTS 2F19...
Page 430: ...CHAPTER NAVIGATION AND PITOT STATIC 2G7...
Page 444: ...CHAPTER OXYGEN SYSTEM 2G21...
Page 464: ...CHAPTER VACUUM SYSTEM 2H17...
Page 473: ...CHAPTER ELECTRICAL ELECTRONIC PANELS AND MULTI PURPOSE PARTS 2I2...
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Page 477: ...CHAPTER STRUCTURES 2I6...
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Page 496: ...CHAPTER DOORS 2J1...
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Page 505: ...CHAPTER STABILIZERS 2J10...
Page 514: ...CHAPTER WINDOWS 2J19...
Page 519: ...CHAPTER WINGS 2J24...
Page 550: ...CHAPTER PROPELLER 3A18...
Page 565: ...CHAPTER STANDARD PRACTICES ENGINE 3B9...
Page 568: ...CHAPTER POWER PLANT 3B12...
Page 592: ...CHAPTER ENGINE FUEL AND CONTROL 3C12...
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Page 611: ...CHAPTER IGNITION 3D7...
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Page 655: ...CHAPTER ENGINE INDICATING 3F16...
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Page 664: ...CHAPTER EXHAUST 3G1...
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Page 669: ...CHAPTER OIL SYSTEM 3G6...
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Page 673: ...CHAPTER STARTING 3G10...
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Page 688: ...CHAPTER TURBINES 3H1...
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Page 694: ...CHAPTER 91 CHARTS AND WIRING DIAGRAMS 3H7...
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