BIGFOOT GEAR HOUSING
Page 6B-64 90-857046R1 NOVEMBER 2001
Trim Tab Adjustment and Replacement
IMPORTANT: The trim tab is now painted and does NOT aid in protecting the drive
shaft housing and gear housing from galvanic corrosion (corrosion and pitting of
metal surfaces). Side anodes now provide protection. Do not paint or place protec-
tive coating on the side anodes, or corrosion protection function will be lost.
TRIM TAB REPLACEMENT
1. Replace trim tab if damaged. Mark location of old trim tab on anti-ventilation plate before
removal. Install new trim tab in same location.
TRIM TAB ADJUSTMENT
NOTE:
The trim tab provides a means to offset (balance) some of the steering load that is
caused by propeller torque at higher operating speeds.
NOTE: Loosen trim tab bolt sufficiently to allow trim tab to disengage from locking ridges
in gear case before attempting to move tab. DO NOT strike trim tab with a hard object to
make adjustments.
1. Shift engine control into NEUTRAL and turn ignition key to OFF position.
2. If at higher speeds the boat turns more easily to the left, loosen screw, move the trim
tab (trailing edge) to the left (when viewed from behind). Tighten retaining screw to spe-
cified torque.
3. If the boat turns more easily to the right, loosen screw, move the trim tab (trailing edge)
to the right (when viewed from behind) turn trim tab (trailing edge) to the right . Tighten
retaining screw to specified torque.
53931
a
b
c
a- Trim Tab
b- Anti-Ventilation Plate
c- Retaining Screw and Washer
Retaining Screw Torque
22 lb-ft (29.8 Nm)
To Next Page
Loading...
