See full version: 4 Most Common Reasons Why Your Boat Leans To One Side
To help determine what is causing the boat to lean, it is important to note when the lean is occurring. For example, is the boat only leaning to the side while you are in motion and using your throttle? Or is it happening while the boat is sitting at rest?
Solution: Try moving your gear around and distribute the weight evenly, and store heavier items in the center of the ship. Take a look at the position and location of the gas tank, battery bank, and other equipment onboard to see if those items are also more one-sided. If you have passengers on board, have them slowly move about to help even the load.
A hydrofoil can be added to outboards to help provide a little extra performance boost, usually by an additional two or three MPH at cruise. A hydrofoil is used to level out the ride by forcing the stern to rise and the bow to go down. [links]
There are some parameters that we want to run in though. You won’t get anything from trimming the engine up if the boat is not on a plane. This basically means whenever the boat is running at cruising speed and is “on top” of the water.
This is understandable because as we talked about. The trim is only for the first 20 degrees and then tilting is everything above that. Where on a sterndrive, there are only about 20 degrees of overall motion. So there isn’t any tilting that would be needed.
So, while on a plane, if you trim the engine up, and all boats will have different trim angles depending on the power and the hull. You will feel the boat come up more out of the water. more
It can be done by leaving one engine down and then trimming the other engine up! [links]
Some of the older Power Tilt and Trim Systems used an Electric Tilt Motor in combination with a mechanical lifting device. For example, Volvo Penta used a 12-Volt Power Tilt Motor turning a lifting screw on their older Stern Drives. On older OMC Stern Drives, an electric Motor turned a Worm Gear and incorporated a wet clutch pack to Tilt the drive unit as well as lock it into place. The Electric Hydraulic power Trim and Tilt System is more common. This type of system is used on Johnson and Evinrude Outboards, Mercruiser Stern Drives, Mercury Outboards and Volvo Penta Stern Drives. This system consists of two major components; the 12 volt electric Motor with a reservoir, and the Hydraulic Pump or Valve Body.
If your power Trim Tilt Motor won’t run after this procedure it is time to replace it. Some replacement Power Trim and Tilt Motors will come with a new wiring harness and relay kit to convert your old three wire power Trim and Tilt Motor to a new more powerful two wire Motor. (Tilt and Trim cross-reference) [links]
If your power Trim and Trim Motor is working fine but the engine or drive unit won’t stay Trimmed or bleeds down when in the up position, you most likely have a problem with the Hydraulic pump or Valve Body assembly. In that case it can be removed and rebuilt by a qualified repair facility. Replace the power Trim and Tilt hydraulic pump unit and fill the reservoir with the correct Power Tilt and Trim Fluid per your owner’s manual. Generally, Transmission fluid is not recommended. It can be hard on some seals due to the high amount of detergents. Most power Trim and Tilt units will purge the air from the system just by running the engine or sterndrive up and down two or three times with the vent plug loose.
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