50
L510010-03
C.C.
ENGINE MAINTENANCE - 11
Figure 11-26 Engine Extension
• LEFT or RIGHT ADJUSTMENT: Loosen the
trunnion clamping bolt and the nut on
all four mounting brackets. Move the engine
to the left or right, as necessary, to obtain the
proper alignment.
IMPORTANT: The large diameter of the mount trunnion
MUST NOT extend over 1.0 in. (25.4 mm) from the
mounting brackets on any of the mounts.
6. After the engine has been properly aligned,
secure the engine mounts.
7. Connect the propeller shaft coupling to the
transmission coupling. Tighten the coupling
attaching bolts and nuts to the correct
specifi cations.
FASTENER TORQUE SPECIFICATIONS
Figure 11-24 Mount Adjustment
5. If the coupling center lines are not aligned, or if
the coupling faces are more than 0.003 in. (0.07
mm) out of parallel, adjust the engine mounts as
follows:
• UP or DOWN ADJUSTMENT: Loosen the
locking nut. Turn the adjusting nut or the
adjusting bolt in the direction required to raise
or lower the engine. After the adjustment is
complete, tighten the locking nut.
IMPORTANT: Both the front mount (or rear mount)
adjustments must be turned equally to keep the engine
level from side to side.
Location Lb-Ft (N
.
m)
Engine Mount to Stringer Securely
Propeller 50 (68)
Trunnion Bolts 45 (61)
TRUNNION
BOLT
1.0
(2
Figure 11-25 Mount Adjustment
LOCKING
NUT
ADJUSTING
NUT
LOCKING
NUT
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