TEXTRON LYCOMING OPERATOR'S MANUAL
SECTION
4 0-360
and ASSOCIATED MODELS
h. Turbocharger
- Inspect all air ducting and connections
in turbocharger
system for leaks. Make inspection
both with engine shut
down and with
engine running.
Check at manifold connections
to turbine inlet and at
engine
exhaust manifold gasket,
for possible exhaust gas
leakage.
CAUTION
Do not operate
the turbocharger if leaks exist
in the ducting, or if air cleaner
is not filtering efficiently. Dust leaking into air ducting can damage tur-
bocharger
and
engine.
Check for dirt
or dust build-up within the
turbocharger. Check for
uneven deposits on the impeller. Consult AiResearch Industrial Div.
Manual
TP-21 for method to
remove all such foreign
matter.
5. 400 HOUR INSPECTION.
In addition to the items
listed for daily pre-
flight, 50 hour and 100 hour inspections, the following maintenance check
should be made after every 400 hours of operation.
Valve Inspection - Remove rocker box covers and check for freedom of valve
rockers when valves are closed. Look for evidence of abnormal wear or
broken parts in the area of the valve tips, valve keeper, springs and spring
seats. If any indications are found, the cylinder and all of its components
should be removed (including the piston and connecting rod assembly) and
inspected for further damage.
Replace any parts that do not
conform with
limits shown in the latest revision of Special Service Publication No. SSP1776.
6. NON-SCHEDULED INSPECTIONS. Occasionally, service bulletins
or service instructions are issued by Lycoming Division that require
inspection procedures that are not listed in this manual. Such publications,
usually are limited to specified engine models and become obsolete after
corrective modification has been accomplished. All such publications are
available
from Lycoming distributors,
or from the factory by subscription.
Consult the latest edition of Service Letter No. L114 for subscription infor-
mation. Maintenance facilities should have an up-to-date file of these publica-
tions available at all times.
4-6
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