TEO-540-C1A Engine Maintenance Manual
© 2018 Avco Corporation. All Rights Reserved
72-20
November 2018
Page 131
TEO-540-C1A Engine Maintenance Manual
CAUTION
TO PREVENT DAMAGE TO THE CRANKCASE, REMOVE ALL THRU-
STUDS, NUTS, AND BOLTS FROM THE CRANKCASE HALVES
BEFORE YOU SEPARATE THE CRANKCASE HALVES.
G.
Use a slide hammer, a crankcase thru-stud puller ST-271 or crankcase thru-stud driver ST-
317 or a plastic hammer to remove the eight thru-studs from the crankcase (Figure 4).
Figure 4
Crankcase Assembly
H.
Cut, remove, and discard the safety wire on the six nuts on the bottom of the crankcase that
were inside the oil sump.
I.
Remove the remaining bolts and nuts that attach the crankcase halves.
J.
Insert one used pushrod into each of the eight holes where the thru-studs were removed to
support the camshaft and crankshaft when the crankcase halves are separated.
K.
Separate the crankcase with a Crankcase Separating Tool ST-389 or with a slide-hammer
attached to one of the base studs as shown in Figures 5, 6, and 7.
Figure 5
Attach the Slide-Hammer
to a Base Stud
Figure 6
Strike the Slide Part of the Tool
Against the Back of the Tool
Figure 7
Separate the
Crankcase Halves
