Effectivity 71-00-02
PA-28RT-201T Page 71-05
December 1, 1978
3B18
CHART 7101. TROUBLESHOOTING CHART (ENGINE) (cont.)
Low fuel pressure. (cont.) Incorrect fuel injector pump Check and adjust using ap
adjustment and operation. propriate equipment. Re
place defective pump.
Defective fuel injector pump Replace pump if cleaning
relief valve. and lapping valve does not
correct problem.
Air leakage in fuel pump Locate cause of leakage and
pressurization line. correct.
High fuel pressure. Restricted flow beyond fuel Check for restricted fuel
control assembly. nozzles or fuel manifold
valve. Clean or replace noz-
zles. Replace defective fuel
manifold valve.
Defective relief valve opera- Check fuel injector pump
tion in fuel injector. control line from turbo-
charger for loose connec-
tions and defects. Tighten
connections, replace dam-
aged line.
Restricted recirculation pas- Replace pump.
sage in fuel injector.
Air leakage in fuel gauge Locate cause of leakage and
vent pressurization line. eliminate.
Fluctuating fuel pressure. Vapor in fuel system. Normally operating the aux-
iliary pump will clear sys
tem. Operate auxiliary pump
and purge system.
Fuel gauge line leak or im- Purge gauge line and tighten
properly purged lines. connections.
Low oil pressure on engine Insufficient oil in oil sump, Add oil or change oil to
gauge. oil dilution or using im- proper viscosity.
proper grade of oil for prevail
ing ambient temperature.
Trouble Cause Remedy
PIPER AIRCRAFT
PA-28RT-201 / 201T
MAINTENANCE MANUAL
To Next Page
Loading...
