How Do You Install A Transom On An Outboard Motor?

How far below the transom should the prop be?

If you have a short shaft motor, the top most part of the transom and the lower most part of the boat should be about 15 to 16 inches. For a long shaft, I think 20 to 21 inches is correct.

What is the correct height to mount an outboard motor?

Industry standards dictate that for short shaft engines the transom height should be 15″. A long shaft engine requires a height of 20″ and extra-long shaft engines will need a transom height of 25″. While this is the case there is certain saltwater motors that are extra extra long at 30″.

What happens when outboard is mounted too high?

If it’s too high, the propeller tends to ventilate, losing its bite on the water and blowing out while turning and in steep seas. “If the prop consistently ventilates when heading down a steep wave, the outboard is probably set too high,” says Dean Corbisier, advertising and public relations manager for Suzuki Marine.

Is a transom saver needed?

the correct answer is,yes,you need a transom saver. even though boats are designed to flex and move in the water,they are not designed to be rigidly mounted to a trailer with a motor bouncing on the back that is flexing and stressing the transom with every bounce.

Where should the prop sit on a boat?

With the motor trimmed so that the propshaft is parallel to the keel, the anti-ventilation plate should be just about even with your straight edge, and thus even with the boat bottom at the keel. A yardstick will help you determine if your outboard engine is at the right height.

How do you know if your outboard is too low?

An outboard that is mounted too low will limit your boat’s optimal operation. You can often tell that an outboard is too low if you are experiencing sluggish speeds, poor handling, excessive spray, porpoising, or even water pushing up into the cowling.

Where should the cavitation plate be in relation to the bottom of the boat?

The cavitation plate should be nearly even with or slightly below the bottom. For a short shaft the vertical measurement of the transom should be about 15 inches.

How do you measure a boat transom?

The transom is the flat vertical section at the rear of the boat. It is where the outboard is mounted, and some boat owners place the name of the boat. The height of the transom is calculated by measuring from the bottom of the hull to the top of the transom, using the center line.

How do you know if your outboard is too high?

Too high usually results in low water pressure, prop letting go in turns, or lack of bow lift are usually the telltale signs. Sometimes porpoising is caused by too much bow lift and dropping the motor will give it more bite and make it worse.

How do I know my prop to pad?

Measuring the distance from the center of the prop shaft to the floor. Now just subtract the prop shaft measurement from the pad measurement. For my set-up, the prop is 2.75″ below the pad.

How does transom saver work?

A transom saver distributes the impact of the weight of the outboard on the trailer. To effectively achieve this, the boat and the trailer have to be in sync so that the weight distribution is even; otherwise, the transom will still feel the strain.

What is the cavitation plate on an outboard motor?

Cavitation plates are mounted to the lower units of boats to help increase performance. They act as a planing surface to get your boat on top faster. They give you better bow response when trimming your motor. They keep water down at your prop and intake improving water pressure.

Where do you put the transom saver?

A traditional transom saver attaches to the trailer frame and outboard. Evinrude outboards use a lock arm. Without a transom saver, a skeg can hit the pavement.

How do I choose a transom saver?

DETERMINING THE CORRECT “TRANSOM SAVER”.

1. (#1) Hitch trailer, with boat on it, to tow vehicle and place on flat surface.
2. (#2) Raise motor, with power trim or settings, so the bottom of lower unit is 12″ to 16″ off the ground.
3. (#3) Choose between “Roller Mount” or “Frame Mount” models.

What is the transom on a boat motor?

The cross-section of the stern, where you attach an outboard motor, is called the transom. On the top of the boat are metal fittings called cleats. When docking your boat, you fasten a rope or cable to the cleats.

Should you store your boat with the motor up or down?

When you park the boat for the winter keep the motor trimmed or tilted down, especially if it’s outdoors. This will allow all of the water to drain out of the motor’s cooling system. If it’s tilted up, some water may remain in the motor, where it can freeze and cause a cracked block or a ruined water pump housing.

Should you tow your boat with the motor up or down?

Generally, you should tow your boat with the motor down, especially if your trailer offers good ground clearance. Additionally, most manufacturers recommend that you should pull your boat down.

How long do transoms last?

Step 4: Fabricating the Transom
From the looks of the transom in this boat, I would estimate a typical transom will last about 20 years or so before they need to be replaced.

How do you reinforce a Canome transom?

Rough up the edges of the outer fiberglass skin you removed from the transom with the palm sander. Apply a heavy coat of epoxy to the last sheet of plywood you used to fill the transom void, and replace the outer fiberglass skin of the transom, using wood screws around the edges to attach the fiberglass to the plywood.

How do you reinforce aluminum?

The strength of aluminum alloys can be modified through various combinations of cold working, alloying, and heat treating. All the alloys can be strengthened by cold working processes such as cold rolling or wire drawing.