2670 DENALI
2.5 Engine Power Tilt and Trim
All outboard engines have a tilt and trim feature. The tilt and trim switches are usually built into
the engine shift and throttle controls and allows the operator to control the position of the
outboards from the helm. Moving the outboards closer to the boat transom is called trimming
“in” or “down.” Moving the outboards further away from the boat transom is called trimming
“out” or “up.” In most cases, the boat will run best with the outboards adjusted so the hull will
run at a 3 to 5 degree angle to the water.
The term “trim” generally refers to the adjustment of the outboards within the first 20
o
range of
travel. This is the range used while operating your boat on plane. The term “tilt” is generally
used when referring to adjusting the outboards further up for shallow water operation or
trailering. For information on the proper use and maintenance of the power tilt and trim, please
refer to the engine owner’s manual.
THE ENGINE HOSES AND CABLES OR THE TRANSOM GEL COAT CAN BE DAM-
AGED BY TILTING THE ENGINES TO THE FULL UP POSITION WITH THE EN-
GINES TURNED TO THE WRONG POSITION. ALL TWIN ENGINE AND MOST
SINGLE ENGINE BOATS REQUIRE THE STEERING WHEEL TO BE TURNED COM-
PLETELY TO STARBOARD BEFORE TILTING THE ENGINES TO THE FULL UP
POSITION. YOU SHOULD MONITOR THE ENGINES AS THEY TILT TO DETER-
MINE BEST FULL TILT ENGINE POSITION FOR YOUR BOAT.
SOME AUTOPILOTS HAVE ENGINE POSITION SENSORS THAT ARE MOUNTED TO
THE HYDRAULIC STEERING CYLINDER. WITH THESE AUTOPILOTS, THE EN-
GINE POSITION SENSOR BRACKET COULD HIT THE TRANSOM WHEN THE EN-
GINES ARE TILTED TO THE FULL UP POSITION AND CAUSE DAMAGE TO THE
ENGINE RIGGING, THE AUTOPILOT OR THE TRANSOM. IF YOU HAVE AN AU-
TOPILOT INSTALLED ON YOUR BOAT, YOU SHOULD MONITOR THE LOCATION
OF THE ENGINE CABLES AND AUTOPILOT BRACKETS AS THE ENGINES ARE
TILTED TO DETERMINE THE BEST ENGINE POSITION AND MAXIMUM ENGINE
TILT FOR YOUR APPLICATION.
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