Lycoming TEO-540-C1A Maintenance Manual page 89

TEO-540-C1A Engine Maintenance Manual
TEO-540-C1A Engine Maintenance Manual
Engine Inspection Checklist After Propeller Strike for TEO-540-C1A Engines (Cont.)
Sequential Task
5. Complete grit-blast cleaning* of
the crankcase with fine abrasive
(150-grit or finer) remove all
coatings on the crankcase and
engine mount bosses.
6. Complete grit-blast cleaning* of
the oil sump and engine mount
bosses with fine abrasive (150-grit
or finer).
7. Complete grit-blast cleaning* of
the engine mount brackets (if used)
with fine abrasive (150-grit or
finer).
8. Complete grit-blast cleaning* of
the accessory housing with fine
abrasive (150-grit or finer).
9. Remove and discard the existing
crankshaft gear bolt and lockplate.
10. Examine the crankshaft.
11. Examine, the crankshaft counter-
bored recess, the alignment dowel
especially at the base where it goes
into the crankshaft, the bolt hole
threads, and the crankshaft trigger
gear assembly for wear, galling,
corrosion, and fretting.
12. Clean the crankshaft, camshaft,
crankshaft trigger gear assembly,
counterweights, rollers and
bushings.
* Refer to the "Grit-Blast Procedure" in Chapter 05-30.
© 2018 Avco Corporation. All Rights Reserved
November 2018
Additional Information
Make sure there is no dirt, debris,
sludge, paint, or any other
substance that could prevent
reliable Fluorescent Penetrant
Inspection (FPI) or subsequent oil
flow.
Make sure there is no dirt, debris,
sludge, paint, or any other substance
that could prevent reliable FPI or
subsequent oil flow.
Make sure there is no dirt, debris,
sludge, paint, or any other
substance that could prevent
reliable FPI or subsequent oil flow.
Make sure there is no dirt, debris,
sludge, paint, or any other
substance that could prevent
reliable FPI or subsequent oil flow.
Refer to the "Crankshaft
Disassembly" procedure in Chapter
72-20.
Refer to the "Crankshaft
Inspection" procedure and checklist
in Chapter 72-20.
Refer to the latest revision of
Service Bulletin No. 475. If the bolt
hole threads are damaged, they
cannot be repaired. Replace the
crankshaft.
Refer to procedures and guidelines
in Chapter 05-30.
Make sure there is no dirt, debris,
sludge, paint, or any other
substance that could prevent
reliable magnetic particle
inspection or subsequent oil flow.
Corrective Action
Done/Comments
05-50
Page 59