Lycoming TEO-540-C1A Maintenance Manual page 210

(1) Put the camshaft in the left crankcase half (Figure 82).
Main Bearing and Camshaft Bearing Saddles in Crankcase Half
(2) Complete a check of the end play clearance of the camshaft using a feeler gage (Figure
83).
(3) Remove the camshaft from the left crankcase half and install it in the right crankcase half
and complete a check of the camshaft end play clearance.
Acceptable end play
clearance.
NOTICE: If the end play clearance values are not
within the allowable limits, examine the
crankcase and/or camshaft for wear or
damage. Replace a damaged or worn
camshaft. If one crankcase half is worn or
damaged, replace both crankcase halves
as a matched set.
(4) Apply engine oil mixture (15% pre-lubricant (STP or equivalent) and 85% SAE No. 50
mineral base aviation grade lubricating oil) to the camshaft bearing saddles and main
bearings on each crankcase half (Figure 84) and the camshaft lobes (Figure 85).
72-20
Page 180
Figure 82
0.002 to 0.015 in.
(0.051 to 0.381 mm)
TEO-540-C1A Engine Maintenance Manual
TEO-540-C1A Engine Maintenance Manual
Camshaft End Play Clearance Check
© 2018 Avco Corporation. All Rights Reserved
Figure 83
November 2018