Trim "In" Angle Adjustment - Mercury 40 Service Manual

POWER TRIM

Trim "In" Angle Adjustment

Operating some boats with engine trimmed to the full "in" trim angle at planing
speed will cause undesirable and/or unsafe steering conditions. Each boat must be
water tested for handling characteristics after engine installation and after any trim
adjustments.
IMPORTANT: Some boat/motor combinations that are trimmed to the full "in" trim
angle, will not experience any undesirable and/or unsafe steering conditions during
planing speed. However, some boats with engine trimmed to the full "in" trim angle
at planing speed will cause undesirable and/or unsafe steering conditions. If these
steering conditions are experienced, adjust the left and right tilt stop pins to prevent
unsafe handling characteristics.
Water test the boat. If undesirable and/or unsafe steering conditions are experienced (boat
runs with nose down), adjust the left and right tilt stop pins in proper hole to prevent unsafe
handling characteristics.
a -
b -
IMPORTANT: In order to remove the right tilt stop pin it may be necessary to remove
the upper pivot pin and pivot the tilt/trim assembly out of the clamp brackets. See
"Power Trim System Removal" to remove the upper pivot pin.
Page 5B-8
a
a
Left Tilt Stop Pin
Right Tilt Stop Pin
WARNING
b
b
90-828631R3 MARCH 1999