How To Make A Motor For A Boat From A Chainsaw

A boat motor from a chainsaw: do it yourself Step by step instructions on how to make a homemade boat motor from a chainsaw with your own hands with a photo and selection of the necessary components

Chainsaw outboard motor: do it yourself

how to make a motor for a boat from a chainsaw

It is difficult to dispute the fact that a chainsaw is a versatile tool. In addition to the traditional tasks for which it was originally created logging, sawing wood and other building materials, this gasoline tool is increasingly becoming the basis of numerous homemade products that folk craftsmen adapt to their needs. In addition to a sawmill or a winch, homemade outboard motors from a chainsaw have become very popular among the masses. Productive and reliable, they cope with their task no worse than factory counterparts, and they are much cheaper. After all, everyone who has ever been interested in buying a motor for a boat knows that this pleasure is very expensive.

How to make a boat motor from a chainsaw with your own hands, and the further material of the article will be devoted.

Getting ready for work: the required technical base

To re-equip a chainsaw for a boat motor, it will come in handy:

  • The gasoline saw in the described example is Stihl MS 180;
  • Reducer;
  • A screw mechanism that can be made by yourself or removed from a strictly engine;
  • Lathe for turning works;
  • Measuring instruments;
  • Metal corner;
  • Angle grinder and electric drill;
  • Fastening.

What you need to know before making a motor for a boat out of a chainsaw?

Contrary to the opinion of the majority about the failure of this venture, experienced mother-experts are unanimous: boat motors from modern chainsaws work on a par with their original counterparts. Of course, this will take time and effort, as well as certain consumables, the main of which is the gasoline saw itself. But given the fact that the motor equipment of the boat will cost a lot of money, a homemade chainsaw becomes the only chance to equip your float with a motorized traction and no longer row oars.

How to make a boat motor from a chainsaw?

A homemade boat motor from a chainsaw, drawings, which is not difficult to find on the Internet, are best constructed from powerful models. To complete the rework, you need to prepare the following components:

  • The chainsaw from which the engine will be taken.
  • The gearbox is removed from the angle grinder.
  • A screw dismantled from an unnecessary or non-functioning motor, or homemade.
  • If a transom is not included, it must be purchased separately.
  • A clamp is used for fastening.
  • Transmission oil.
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Additional accessories for creating a boat motor, attachments to a chainsaw:

  • Lathe.
  • Fasteners.
  • Metal corner blanks.
  • Steel blanks.
  • Calipers.
  • Ruler.

Chainsaw outboard motor design features

Boat owners often use motors to make the boat as fast and agile as possible. The cost of factory units is not affordable for everyone, so most users prefer to create a motor from a chainsaw for a boat on their own. It should be noted that the upcoming intervention in the basic structure is minimal, so the equipment will remain suitable for further operation as intended.

Stages of creating a motor for a boat from a chainsaw with your own hands

Replace the chain element base with a screw fixture. It should be noted that this is not a radical and irrevocable operation. The mechanisms just need to be swapped. This procedure takes a minimum of time, the main points include:

  1. Alteration of the clutch, a cup of smaller dimensions is machined and the spring is changed. This is necessary to reduce the starting moment of adhesion and fit the dimensions and weight in terms of parameters.
  2. The cup and clutch cover are held together with brackets, a clamping screw and washer.
  3. The screw and strap will cover the pin that will connect the cup and shaft.
  1. A channel is used to hold the shaft and motor together.
  2. During assembly, the distance left between the front coupling cup and the support frame must be taken into account.
  3. The gearbox is mounted on the second side of the shaft.
  4. For the rotary unit of homemade outboard motors from a chainsaw, a piece of pipe is used, the diameter of which is slightly larger than the shaft with a fixed angle used to attach the guide. The metal rod must match the dimensions of the hex element.

After you fasten the screw and the gearbox shaft with studs, it is necessary to fill in the gear oil. After that, the cover is fixed using a sealant. To make the outboard motor from a chainsaw as practical and comfortable to use as possible, it is recommended to design a throttle stick.

To make a boat motor from a chainsaw with your own hands, you should not buy a new saw unit. This waste will not be appropriate. For a home-made motor from a chainsaw on a boat, it is better to take used models. The more powerful the equipment, the more efficient the motor is.

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What homemade chainsaw have already come up with

The first use of a chainsaw from the point of view of many developers is to dissolve logs with its help. But, if you hold the chainsaw by hand, the accuracy of the cut suffers, especially with a bar length of four to six meters. So that the cut does not go away from the desired mowing line to the side, they came up with the idea of ​​rigidly fixing the chainsaw in the frame, which moves along the guides.

In such a sawmill, the log lies motionless, and the carriage with the chainsaw is located at the desired height, depending on the desired thickness of the timber, is fixed with four screws.

Thanks to the precise movement of the frame, a smooth and neat cut is obtained. You can also cut boards in the same way, but due to the large thickness of the cutting chain, you get a lot of waste.

Homemade chainsaw engine is great

It cannot be said that such a design will be of much use, but many make such a kind of transport, just to test themselves and others to show their skills as a designer and mechanic.

It is based on an old bicycle, which is not AL-KO, and the well-known Friendship chainsaw. Power transmission to the wheel is carried out using a bicycle chain and a gear pair.

Sometimes they take a mountain bike, a variator gear and a gearbox are installed between the chainsaw and the wheel (to move slowly but surely, you need a gear ratio of 18: 1). On such an advanced model, shock absorbers and a brake are installed.

Boat engine

Such a design is simple to implement, the outboard motor does not need a transmission, you just need to carve out an adapter that will transmit torque from the saw pinion to a standard propeller shaft and boat propeller.

Usually, either a home-made engine is mounted on a boat so that the propeller shaft is immersed in the water at a slight angle, or they are not too lazy to assemble a gearbox that transfers the rotation of the shaft at a right angle to the propeller.

What can be done from a homemade chainsaw from a chainsaw

At the heart of almost any homemade chainsaw is its use as a universal drive that can be used for a huge number of different devices. Their area of ​​use is very wide: cutting stone and metal, pumping water, removing snow, drilling wells and holes, driving, moving various objects, swimming and even flying.

They realize the potential of the chainsaw using a variety of attachments and attachments. Any alteration is based on a simple principle of engine power take-off: a device necessary for the master is connected to the output shaft. The presence of a powerful motor, compact size and relatively light weight of this tool, autonomy and ability to work in almost extreme conditions make its possibilities truly limitless. Of no small importance is the practical design of the clutch, which protects the saw units and systems from breakage and overload. A tool made from a chainsaw is airtight, so it can be used in almost any position.

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What can be made from a chainsaw

All homemade products can be roughly divided into 2 groups:

  • The most simple devices (angle grinder, ice screw, pump, winch, tiller, boat motor, bicycle, moped);
  • complex mechanisms and objects (sawmill, snow blower, snowmobile, snowmobile, power plant, helicopter, solid-forged knife).

For the manufacture of all of the above devices, you can use various brands of chainsaws. When choosing them, one should take into account the required power for the normal operation of the rework. Most often, the following brands of chainsaws are used for the manufacture of various devices: Friendship, Stihl, Ural.

Rework principle

At the heart of almost any homemade chainsaw is its use as a universal drive that can be used for a huge number of different devices. Their area of ​​use is very wide: cutting stone and metal, pumping water, removing snow, drilling wells and holes, driving, moving various objects, swimming and even flying.

They realize the potential of the chainsaw using a variety of attachments and attachments. Any alteration is based on a simple principle of engine power take-off: a device necessary for the master is connected to the output shaft. The presence of a powerful motor, compact size and relatively light weight of this tool, autonomy and ability to work in almost extreme conditions make its possibilities truly limitless. Of no small importance is the practical design of the clutch, which protects the saw units and systems from breakage and overload. A tool made from a chainsaw is airtight, so it can be used in almost any position.

What can be done from a homemade chainsaw from a chainsaw

All homemade products can be roughly divided into 2 groups:

  • The most simple devices (angle grinder, ice screw, pump, winch, tiller, boat motor, bicycle, moped);
  • complex mechanisms and objects (sawmill, snow blower, snowmobile, snowmobile, power plant, helicopter, solid-forged knife).

For the manufacture of all of the above devices, you can use various brands of chainsaws. When choosing them, one should take into account the required power for the normal operation of the rework. Most often, the following brands of chainsaws are used for the manufacture of various devices: Friendship, Stihl, Ural.