Lycoming TEO-540-C1A Maintenance Manual page 226

E. Remove the Idler Gear Assembly Aid (ST-532) and install the crankshaft gear bolt in the
crankshaft (Figure 111).
F. Insert the Crankshaft Locking Tool (ST-534) though the connecting rod for cylinder number
4 and against the Torque Plate (ST-222) as shown in Figure 112. The Crankshaft Locking
Tool prevents the crankshaft from turning while the crankshaft gear bolt is torqued.
Insert Crankshaft Locking Tool (ST-534) Through the Connecting Rod
G. Initially torque the crankshaft gear bolt (Figure 111) to 125 in.-lb. (14.12 Nm) torque.
H. With a hammer and brass drift, tap lightly around the pilot flange of the crankshaft trigger
gear assembly and listen for sharp solid sounds from the hammer blows that would indicate
that the crankshaft trigger gear assembly is seated against the crankshaft.
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TEO-540-C1A Engine Maintenance Manual
TEO-540-C1A Engine Maintenance Manual
Figure 111
Crankshaft Gear Bolt
Figure 112
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November 2018