Lycoming TEO-540-C1A Maintenance Manual page 186

Connecting Rod Inspection Checklist for TEO-540-C1A Engines (Cont.)
Complete the "Connecting Rods- Parallelism/
Squareness Check" in this chapter.
For the parallelism check, measure the
distance between arbors (Figure 37). For
exact parallelism or alignment, the distances
measured on both sides are to be the same.
For the squareness check, use a feeler gage
to measure the clearance at the four check
points where the arbors rest on the parallel
blocks (Figure 38). Compare the clearance
between each arbor and the parallel blocks
against the values in the latest revision of the
Service Table of Limits - SSP-1776. If out
of tolerance, replace the connecting rods and
examine the crankshaft to make sure the
crankshaft is not damaged.
72-20
Page 156
Figure 33
Connecting Rod
TEO-540-C1A Engine Maintenance Manual
TEO-540-C1A Engine Maintenance Manual
For connecting rods that pass the
Visual Inspection herein, complete a
Magnetic Particle Inspection on all
connecting rods as per the "Non-
Destructive Testing" section in
Chapter 05-50.
Findings/ Corrective Action of
Magnetic Particle Inspection
Connecting Rod 1
Connecting Rod 2
Connecting Rod 3
Connecting Rod 4
Connecting Rod 5
Connecting Rod 6
Connecting Parallelism
Rod Measurement
Connecting
Rod 1
Connecting
Rod 2
Connecting
Rod 3
Connecting
Rod 4
Connecting
Rod 5
Connecting
Rod 6
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Acceptable
Replace
Acceptable
Replace
Acceptable
Replace
Acceptable
Replace
Acceptable
Replace
Acceptable
Replace
Squareness
Outcome
Measurement
Acceptable
Replace
Acceptable
Replace
Acceptable
Replace
Acceptable
Replace
Acceptable
Replace
Acceptable
Replace
November 2018