Piper SEMINOLE PA-44-180, Maintenance Manual

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PA - 4 4 - 1 8 0 / 1 8 0 T
AIRPLANE MAINTENANCE MANUAL
7 1 - 0 2 - 0 0
Page 71-04
Revised: May 15, 1989
3E2
CHART 7101. TROUBLESHOOTING (ENGINE) (cont)
TROUBLE CAUSE REMEDY
Failure of engine to Leak in the induction system. Tighten all connections and
develop full power. replace defective parts.
Throttle lever out of adjustment Adjust throttle lever.
Sniffle valve stuck open, 180T Clean or replace valve.
only.
Turbocharger malfunctioning, Check for unusual noise in turbo.
180T only. If malfunction is suspected check
for damaged rotor assembly, for
possible rubbing in housing,
damaged rotor, coked bearings.
Repair or replace turbocharger.
Improper fuel flow. Check strainer, gauge and
flow at the fuel inlet.
Restriction in air induction. Examine air intakes and remove
restrictions.
Improper fuel. Drain and refill tank with
recommended fuel.
Faulty ignition. Tighten all connections. Check
system with tester. Check
ignition timing.
Exhaust system gas leakage, Inspect exhaust system for gas
180T only. leakage, gaskets at turbine inlet
flanges, etc., and correct as
applicable.
Improperly adjusted pressure Adjust valve.
relief valve, 180T.
Possible leak in lines to sniffle Inspect and repair. Refer to
valve. sniffle valve information in this
chapter.
Rough engine. Cracked engine mount. Replace or repair mount.
Defective mounting bushings. Install new mounting bushings.
PIPER AIRCRAFT