Boat motors are self-made. How to make a boat outboard electric motor by your own hands

In order to independently build a boat engine, you need to understand its device. In addition, it should be taken into account that the tiller will be required to operate the model. In this case, it is more expedient to use parts from an old boat engine. The trays for the engine are selected separately. Also, special attention should be paid to the fuel system. Some experts are able to fold the boat motor from a chainsaw or a trimmer.

The device of the simple motor

At the top of any boat engine is directly the engine. Through the fuel pump, it connects to the piston system. In addition, it should be noted that there is a special rocker in the boat motor. It is necessary in order to ensure the operation of the valves. In this case, much depends on the cubic capacity of the engine. On the pallet in the boat motor there is a clamp. With its help, it is possible to fix the model on board.

Fixers above the pallet are not always used. In some cases, gearboxes are also installed. Today there are a lot of Dadewoods. Under them is directly located the crankshaft, which connects to the central rod. Thus, the torque is transmitted to the lower gear. Through the special head, the screws rotate.

Chainsaw model

A boat motor from a chainsaw can be made, but details with an outdated model are needed. First, the engine of the device is extracted. It is installed immediately on the pallet. In this case, the fuel system for it can be chosen the most common. In this case, the parameter of the limiting frequency does not exceed 1300 rpm. The rocker on these boat engines (homemade) will fit with three valves. However, special attention must be given to the type of convector.

With this part you can control the tiller. After fixing the top plate there is an opportunity to go to the deadwood. The crankshaft in this case is better to choose strong. In this case, the central rod must be borrowed from an old boat engine. At the end of the job, you only need to install the lower gear with the screws. For pumping water, an additional pump will be required.

Trimmer motor

Self-made boat motors from the trimmer are assembled quite simply. First of all, experts advise to remove the handle. Replace it with a rod. Further it is important to make a pallet for the engine. In this case, you can use even a cast-iron plate. The engine must be secured very carefully. The fuel pump for the system can be used conventional. However, it is more expedient to select a camshaft for a strong one, otherwise it will not withstand the high loads. Dedwood is fixed in this case only after fixing the upper gear.

If desired, you can install a thermostat on the boat motors (homemade). The clamp is mounted after securing the deadwood. To ensure that the motor gearbox is not loose, many experts recommend using a special rubber gasket. Screws in the model must be fixed on a vertical shaft.

Model of motoblock

It is rather difficult to assemble self-made boat motors from a motor block, but it is possible. If we consider electrical modifications, the starter is first extracted from the device. It is also necessary to disconnect the motor. If a four-cycle modification is used, the fuel system will be the most common. Water pump in this case it is important to select a quality pump. In turn, you can take a deadwood from an outdated boat engine. To fix the fuel pump, many use different clips. The easiest way to consider it as staging it over a carburetor. At the same time, he should not touch the yoke.

The crankshaft on boat engines (homemade) should be fastened above the top gear. At this stage it is necessary to check the strength of the clamp. The pallet, in turn, should not block it. The water pump in this case is installed under the deadwood. In order not to interfere with the operation of the lower rod, many experts recommend using special springs. After fixing them, it remains only to fix the screws and tiller.

Devices with two-way flywheel

Make a boat engine with a two-way flywheel with your own hands - the task is not easy. The engine in this case is more expedient to choose a two-stroke type. Thus the rocker under it should be designed for three valves. Also before installation it is necessary to check the strength of the pushers. They must withstand a pressure of at least 3 bar. In this case, you can hope for stable operation of the engine. The pallet in this case must be mounted under the clamp. For convenience, it can be fastened with screws and then use a sealant. After securing the tiller, the deadwood is connected. The protection of the propeller screw is installed last.

Models with two-stroke engines

It is possible to make a boat engine with a two-stroke engine only with the help of a crankshaft with a diameter of at least 60 mm. Otherwise, it can not withstand the load. The flywheel in this case can be chosen as usual. At the same time, the fuel pump must withstand a pressure of at least 3 bar. The specialists advise installing the rocker arm on only three valves. The thermostat is mounted on boat engines (homemade) if desired.

Exhaust valves in the system are installed most often aluminum. Cooling devices are available today. The simplest variant is considered to be a water modification. To do this, in the pan it is necessary to provide in advance the fences. The pushers above the engine must be installed last. The deadwood for push-pull modification is suitable with a 120 mm rod.

Devices with four-stroke engines

You can build a self-made outboard boat motor with a four-stroke engine , but you will have to use parts from another model. In particular, it is necessary to select the clamp for the device separately. It should also be noted that the rocker requires four valves in this case. In this case, the tank is installed under the fuel system near the pallet.

Dedwoods for the engine are selected, as a rule, by two rod. In this case, the crankshaft must be selected separately. Connectors in such devices are installed quite often. The tiller should be attached directly to the flywheel. Fixators for this are best used steel. Without welding in this case, it is quite difficult.

Modifications on the manual starter

Homemade boat motors (bogs) with hand starters are quite common. Install these components near the camshaft. To fix them, it is necessary to use a rubber gasket. At the same time, there must be at least four screws. If we consider four-stroke engines, then there starters, as a rule, are installed electronic type. However, hand-held devices are ideal for push-pull modifications.

Model with protected gearbox

Boat motors with a protected gear are very popular today. In order to assemble them independently, it is necessary to select an engine with a power of at least 3 kW. The starter in this case is suitable for hand type. First of all, the clamp for the engine is cut out. Only after this you can proceed to install the fuel system. The thermostat, if desired, is mounted on the rocker arm.

The next step is fastening the reducer. To ensure that the rocker does not jerk during operation, it is possible to lay a gasket under it. Install pushers on the pallet, and for this you will need to use a welding machine. The top rod in this case is important to attach under the clamp. To prevent the pressure does not deform the pallet, many experts advise to install additional supports.

Devices with an anti-cavitation plate

Boat motors with an anti-cavitation plate are operated quite comfortably. In this case, it is necessary to begin work on collecting the device with the engine secured. Only after this fixers are welded. To fix the fuel pump, you can use the screws. In this case, it is not necessary to install the gasket. Special attention should be paid to the fuel system. It must be fastened next to the water piston. Anticavitating plate is fixed near the connector. However, she should not touch the pallet. In the end, it remains only to install the deadwood.

Motor with gearbox

Boat motors with gearboxes are difficult to assemble. In this case, the connector must be selected high-quality. In turn, the engine can be used four-stroke. The pushers for the system are set quite wide. Mount the gearbox at the top flange. In order to avoid short circuits, all wiring should be carefully hidden. In addition, you should take care of a good water pump. To seal the upper stem from the carburetor, you can use a sealant.

Model with a reverse lock

In order to assemble a motor with a reverse lock, first of all it is necessary to fix the motor as standard. After that, the tiller is connected to the plate. The fuel system can only be installed after the rocker arm. In order not to clamp the carburetor, many advise using gaskets.

Fasten the reverse lock directly under the clamp. For this purpose it is necessary to use a welding machine. After that, it only remains to secure the deadwood. If the boat engine is installed with the gearbox, the retainer can be located directly in it. However, it is rather difficult to do this due to the fact that you have to saw the block body.