Exhaust System Troubleshooting - Continental Motors TSIO-520-BE Maintenance And Operator's Manual

10-5 FUEL INJECTION SYSTEM TROUBLESHOOTING CHART (continued)
TROUBLE
Unmeteted Fuel
Pressure
Unmetered Fuel Pres-
sure Drop
Very
High
Idle
And Full
Throttle Fuel Pressure
Present
No Fuei Pressure
PROBABLE CAUSE
Internal orifices plugged.
Relief valve stuck open
Relief valve stuck closed.
Check valve stuck open.
10-6 EXHAUST SYSTEM TROUBLESHOOTING
CORRECTION
Clean internal orifices injector
pump.
Repair or replace injector pump.
Repair or replace injector pump.
Repair or replace injector pump.
This troubleshooting chart is provided as a guide. Review all probable causes given, check other listings of
troubles with similar symptoms. Items are presented ln sequence of the approximate ease of checking, not
necessarily in order of probability.
TROUBLE
Engine
Lacks Power,
Reduction in Maximum
Manifold Pressure
Or
Critical Altitude
White
Smoke Exhaust
PROBABLE CAUSE
Improperly Adjusted Wastegate
valve.
Loose or damaged exhaust
system.
Malfunctioning turbocharger.
Exhaust system gas leakage.
Turbo coking, oil forced through
seal turbine housing.
10-12
CORRECTION
To check the adjustment of the
fixed wastegate valve, refer to
the airframe seivice manual.
Inspect entire exhaust system to
turbocharger for cracks and
leaking connections. Tighten
connections and repace damaged
parts.
Check for unusual noise
in
turbocharger.
If
malfunction is
suspected remove exhaust and/or
air inlet connections and check
rotor assembly for possible
rubbing in housing, damaged rotor
or
bearings. Replace turbocharger
if damage is noted.
Inspect exhaust system for gas
leakage. gaskets at cylinder
exhaust ports, flexible bellows,
gaskets at turbine inlet flanges,
etc., and correct.
Clean or change turbocharger.