Lycoming TEO-540-C1A Maintenance Manual page 167

TEO-540-C1A Engine Maintenance Manual
TEO-540-C1A Engine Maintenance Manual
A. Expansion Plug Removal (if installed):
(1) Use a suitable 1/2 in. to 3/4 in. diameter punch to press the center of the expansion plug
to a concave shape in the crankshaft.
(2) Use a sharp tool to make a 1/8 in. to 3/16 in. hole in the center of the plug.
(3) Use a hook or bent rod to pull out the plug.
(4) Remove any little pieces of plug remnants. Discard the expansion plug.
CAUTION
B. Remove the crankshaft oil seal from the crankshaft. If necessary cut the spring with wire
cutters and cut the seal with side-cutter pliers to remove a solid-ring crankshaft oil seal.
C. Counterweight Removal
CAUTION
NOTICE: Counterweights (Figure 20) of a specific order are installed in specified locations
identified in the latest revision of Service Instruction No. SI-1012.
During counterweight removal, identify the counterweight and its location on a non-
adhesive label and temporarily apply this label to the counterweight for reference on
reassembly.
© 2018 Avco Corporation. All Rights Reserved
November 2018
Crankshaft and Counterweight Assembly
USE CARE NOT TO DAMAGE THE CRANKSHAFT WHEN REMOVING
THE CRANKSHAFT OIL SEAL.
WHEN HANDLING COUNTERWEIGHTS AND ROLLERS, DO NOT
MAKE SCORES, SCRATCHES, OR ETCH MARKINGS OF ANY KIND
ON THE CRANKSHAFT AND ROLLERS. A MARK IN ANY OF THESE
AREAS CAN CAUSE THE PART TO WEAKEN AND POSSIBLY FAIL.
Figure 19
72-20
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