Effectivity 71-00-02
PA-28RT-201 Page 71-14
December 1, 1978
3C3
CHART 7102. ENGINE TROUBLESHOOTING
Failure of engine to idle Incorrect idle mixture. Adjust mixture.
properly.
Leak in the induction system. Tighten all connections in
the induction system. Re-
place any parts that are de-
fective.
Incorrect idle adjustment. Adjust throttle stop to
obtain correct idle.
Uneven cylinder compres- Check condition of piston
sion. rings and valve seats.
Faulty ignition system. Check entire ignition system.
Insufficient fuel pressure. Adjust fuel pressure.
Lower power and uneven Mixture too rich; indicated Readjustment of fuel in
running. by sluggish engine opera- jector by authorized person-
tion, red exhaust flame at nel is indicated.
night. Extreme cases indica-
ted by black smoke from
exhaust.
Mixture too lean; indicated Check fuel lines for dirt or
by overheating or backfiring. other restrictions. Check
fuel injection nozzles.
Leaks in induction system. Tighten all connections.
Replace defective parts.
Defective spark plugs. Clean and gap or replace
spark plugs.
Improper fuel. Fill tank with fuel of recom-
mended grade.
Magneto breaker points not Clean points. Check internal
working properly. timing of magnetos.
Trouble Cause Remedy
PIPER AIRCRAFT
PA-28RT-201 / 201T
MAINTENANCE MANUAL
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