A boat motor from a chainsaw: making it yourself
In order for the chainsaw to turn into a boat motor, it is necessary to attach a special attachment. Thanks to the attachment with a 3-sheet propeller with a translation of 2: 1, you will be able to develop the speed of the boat up to 20 km/h with minimal fuel consumption – only 1 liter per hour.
Chainsaw outboard engine
The principle of making a homemade product from a chainsaw is to use the sore as a kind of drive. With the right device and schematics, you can make many devices on a chainsaw engine. You will make a boat motor with a special attachment with blades.
The fact that chainsaws have high engine power, small size and weight allows you to use the unit in many areas of activity and under any environmental conditions. The outboard motor assembled on the basis of a chainsaw has a special tightness, which allows you to use it in any position.
How to assemble a motor for a boat from a chainsaw with your own hands
In order to assemble a boat motor with an existing chainsaw as a donor, you need a basic knowledge of how a boat motor works, and a desire to do the work yourself.
You will need a minimum of tools and materials, which we will discuss below. The whole construction is quite simple and concise, the main thing is to remember the algorithm of changes and do not forget about the purpose of all important parts of the construction.
Necessary materials for the outboard motor
For the successful implementation of the idea of building a bu engine with their own hands from a chainsaw, we will need donor parts, which were listed in the section “Design and principle of operation of the device”. And here are the tools that are desirable for making:
- A lathe;
- A set of bolts and nuts according to the size of the mounting holes;
- Metal casings;
- Steel blanks;
- Ruler;
- A brake caliper.
If you don’t have a lathe, don’t worry, this type of work can be done in a proper turner’s shop.
Which chainsaw to use
There is no fundamental difference in what chainsaw to use for conversion to an outboard engine. Any, even the weakest domestic level chainsaw engine, is a unit capable of providing the necessary power to rotate the propeller.
It goes without saying that the maximum speed of the boat is directly related to the performance of the chainsaw. Therefore, if you have a choice, it is worth settling on a chainsaw with maximum performance.
From domestic chainsaws it is possible to select all models of the brand “Ural”, an excellent choice represent models of the German company Stihl, for example, the time-tested saw Stihl MS 260. All Germans are characterized by great performance and reliability.
It is not so much important to have a chainsaw with the most powerful engine, as the ability to correctly read drawings and diagrams, as well as a basic knowledge of welding.
Step by step instructions on how to make it
The basic idea of u200bu200b making a boat motor from a chainsaw is to replace the chainsaw’s saw headset with a propeller for paddling. We will only replace the gears without making any changes to the basic circuitry of the saw motor.
To properly connect the screw-type motor and the torque reducer, a new clutch has to be milled and the spring has to be replaced with a weaker one. We reduced the clutch torque parameter and set all the dimensions of the construction.
Then, using a channel, mount the motor and shaft, leaving the necessary clearance between the main frame and the clutch. On the other end of the shaft we weld the reducer from the universal joint machine. The rotating mechanism consists of a thick-walled tube, the diameter of which is slightly larger than the diameter of the main shaft.
When the rudder screw and gearbox shaft are connected, it is necessary to pour transmission oil. Using a small plumbing sealant, close the cover. This design does not involve a throttle knob, but can also be done independently of a bicycle shift knob. A muffler can be installed for a more comfortable ride on the water.
Schematic diagram of a rebuilt reducer for a chainsaw A – reducer; B – stud with nut; D – reverse linkage; E – reduced drive shaft.
Steering screw drawing
See also: Patriot chainsaw review. The best chain saw models for gasoline chainsaws. Operating instructions, maintenance, major malfunctions and troubleshooting
Necessary parts for assembling the engine for the boat with his own hands
Below we will list the main assemblies and parts, from which, with the right approach and quick work, you can get a stealth engine for a boat from a chainsaw. Of course, the main part is a chainsaw. Next we will need a gearbox from a grinder (you can also take an old unwanted model), transmission oil. For fixing we will use a clamping clamp. And the second important detail is the chain saw attachment in the form of a screw. You can use both the former screw from the old engine, and assemble it with your own hands. How to do this is shown in the following videos:
‘It’s Interesting to Know’ Communities. ‘Blog’ Friday Home – Manufactured chainsaws!
Light weight and solid power combined with compact size allows you to aggregate this “logger’s dream” with an ice drill and a bicycle, a sawmill and a winch.
Interesting self-made with their own hands can make anyone who is confident with a welder, milling machine, and, if necessary, can withstand a lathe.
In this case, knowledge of the basics of design and drafting will be very useful, as the accuracy of all dimensions and the quality of assembly are the main conditions for the normal functioning of the unit, working from the chainsaw.
Without going into technical details, let’s consider options for the most interesting designs with its use.
chainsaw chambers
The first thing that comes to mind when thinking about what to do with a chainsaw is to use it as a sawmill. Many developers have had to use this tool to cut logs into beams.
In this case, the log lies still and is neatly sawed along its entire length, without wiggling or slanting seams. If you offer such a mobile cart with four jacking screws, you can accurately adjust the thickness of the saw bar.
A light homemade snowmobile from a chainsaw is more complicated in design than a sawmill, because here you need to take gasoline, a clutch and take care of the shock-absorbing suspension of the support frame.
To increase traction, a “traction” degree is placed on the track drive shaft, the diameter of which is larger than the size of the chainsaw drive sprocket.
There is usually no problem with the steering mechanism, because it is taken from an ordinary bicycle or scooter and modified so that the central axis moves the rods that turn the skis. The engine power of the snowmobile must be at least 5 hp. Therefore, for this purpose, it is better to use a chainsaw “Ural”.
Aerial sleds complement the winter lineup of home appliances
From a chainsaw, which is structurally simpler than a snowmobile. The driving force is communicated by a large-diameter auger, which rotates directly a gasoline engine.
Those self-made inventors who want to make a Ranger-type helicopter out of a chainsaw should know the same thing. Such a machine requires not one, but at least two engines, working in a coordinated mode.
More often than not, this vehicle is made for reasons of principle rather than for practical use. The main driving force of its creator is the desire to test his strength as a mechanic and prove to others the possibility of original use of this cutting tool.
Assembly diagram, drawings and instructions
Essentially, the whole job is to replace the chainsaw chain element with a screw with a screw. We remind you that this procedure is not permanent, and in the future, if necessary, you will have the opportunity to change the design of the chainsaw to the original and continue to inspect it. The procedure itself is very quick and consists of the following steps:
First, you need to redo the clutch again. To do this, you need to grind out a smaller bowl and change the spring. These actions will cause the starting torque to decrease and the size and mass to become more balanced. Second, the bowl and clutch cover need to be connected with clamps, which are then connected with a screw and washer.
The screw and washer close, connecting the bowl and shaft, the pin.
Transmission oil can only be poured in after the above steps have been completed. Next, the cover should be repaired with sealant. Some owners recommend making a throttle handle on the chainsaw-based engine for ease of operation.
General information about boat motors
Why are HAUSE boat motors so popular today? The fact is that they are extremely convenient and technologically advanced units, which, among other things, are very convenient and very technologically advanced to transport:
- Today’s boat motors are very modern and technologically advanced units. Technology has advanced so much in recent times that you can no longer believe that there was a time when boat motors were loud and very rumbling.
- The most advanced technology plan is the two-stroke and four-stroke outboard boat motor designs. These engines vary in speed and power, sometimes as high as 300 hp. They are also very reliable, durable and easy to operate with boat motors. These units are in great demand. It is said that their parts simply do not wear out. In addition, the brightest modern boat motors are very economical in terms of fuel consumption.
- Today, such countries as the USA, Japan and China are leading the way in the production of trunk assemblies. They give today’s engines very sophisticated and modern parts that make the whole engine run very soft, powerful and destructive. Various technologies are highly developed in the motorcycle world that make engines so advanced;
- For example, the engines are equipped with many unique systems. For example, there is a system that makes it easy to operate the motor. There is also a system that simplifies the fuel supply to the carburetor of your outboard motor. There are other advanced and extremely useful systems as well.
Recommended reading: Yamaha 3 outboard motor specifications
A chainsaw for a Ural moped
Hello DIY enthusiasts, today we will look at how to connect a chainsaw to a bicycle, creating a moped. The author used a pretty old but powerful chainsaw, it’s the infamous Ural chainsaw. The author reworked the bike, created a solid frame, and replaced the wheel spokes with stronger, reinforced ones. Homemade assembly is very simple, you need to make a bicycle gear from bicycle parts and assemble everything on the bike. According to the author, the homemade bike pulls great in terms of top speed, it is still unknown. If you are interested in the project, I suggest exploring it in more detail!
Materials and tools used by the author:
List of materials:
– “Ural” chainsaw; – two slave and drive chain wheel from a bicycle; – machine with axle and connecting rods; – bicycle chain; – gas clutch and rope; – bicycle chain tensioner; – belt disc, spring (for tensioners); – profile pipes; – iron plates.
The process of making homemade:
1 stage. Gearbox
The working wave of the chainsaw engine develops huge revolutions, but we do not need it, they need to be converted to lower revolutions with more torque. We assemble the gearbox from the velomobile, cut off unnecessary parts of the frame, and cut off the connecting rods. Next, we need a small chainwheel from the rear wheel, it should be welded to the part of the axle where there is no chainwheel. That’s it, after that the gearbox is ready.
To connect the saw to the gearbox, you’ll need another small bicycle chainwheel, this needs to be welded to the chainwheel. We attach the gear to the chainsaw body, weld it to the saw’s thrust studs, and build up everything with iron bars or others. Assemble the chain to the gear, start it up, and check to see if the chain is flying. If the gears are too crooked, the chain flies off.
Later the author will install a chain tensioner, a machine from an extra bicycle was used.
Step 2: The chain wheel with the drive
We need a large diameter drive chainwheel to get a lot of torque. A drive sprocket from a bicycle is suitable, we cut the crank from it. The author welds this star to the part of the wheel to which the foot brake lever is attached. As a result, the design of the bicycle in our country is practically unchanged, it can be driven as a step or by the engine. And if the power of the engine is not enough, at any time you can help with your feet.
Step three. Installing the motor
We continue to install the engine and mount it on the rear trunk. Of course, the trunk will not be able to cope with the given loads, so we also reinforce the construction with profile pipes.
Insert the engine from a chainsaw. How with their own hands
Men with boats can not always afford to buy a factory engine. The fact is that such productive units are quite expensive. To save money, resort to the help of owners who use boat motors, made at home on the basis of engines from chainsaws. The advantage of such an operation is that the first design of the chainsaw requires minimal intervention and can be finalized in the future.
Principle of assembling a boat motor from a chainsaw
In order for the chainsaw to turn into a boat motor, it is necessary to attach a special attachment. Thanks to the attachment with a 3-sheet propeller with a translation of 2: 1, you will be able to develop the speed of the boat up to 20 km/h with minimal fuel consumption – only 1 liter per hour.
The principle of making a homemade product from a chainsaw is to use the sore as a kind of drive. With the right device and schematics, you can make many devices on a chainsaw engine. You will make a boat motor with a special attachment with blades.
The fact that chainsaws have high engine power, small size and weight allows you to use an electric unit in many activities and under any environmental conditions. The boat motor, assembled on the basis of a chainsaw, has a special tightness, which allows you to use it in any position.
Choosing a chainsaw for your home with a boat motor
Experienced designers and boat motor owners do not recommend using new chainsaws. It is better to give preference to used ones. The power of the saw is also an important factor. The more powerful the gasoline engine of the saw, the more powerful the boat motor becomes. On average, 5-10 hp is enough for an efficient engine.
What is needed to assemble a bootmaster from a chainsaw?
Of course, not everyone has the right nozzle with blades and gear at hand. To do this, you need to go to a hardware store and buy some parts, fasteners and tools that you didn’t get. Next we will list what parts you have to assemble for the engine and what tools you will have to use.
What parts do you have to assemble from a chainsaw?
Actually, the process of building a chainsaw engine can’t be called very complicated. In addition, you can find many videos on the Internet and on forums about how to make an engine from a chainsaw with a boat. In the comments, experienced users of homemade engines already show that anyone who is at least a little familiar with the technique and knows how to work with his hands can make an engine.
Necessary parts for assembling the engine for the boat with his own hands
Below we will list the main assemblies and parts, from which, with the right approach and quick work, you can get a stealth engine for a boat from a chainsaw. Of course, the main part is a chainsaw. Next we will need a gearbox from a grinder (you can also take an old unwanted model), transmission oil. For fixing we will use a clamping clamp. And the second important detail is the chain saw attachment in the form of a screw. You can use both the former screw from the old engine, and assemble it with your own hands. How to do this is shown in the following videos:
Homemade tools and improvised means
In addition to basic parts and units, you can not do without tools and devices that greatly facilitate the process of assembling a boat motor. As helpers will be useful:
- A ruler and a brake caliper;
- Metal blanks (steel is better);
- Gaps;
- Fixing elements.
Assembly diagram, drawings and instructions
Essentially, the whole job is to replace the chainsaw chain element with a screw with a screw. We remind you that this procedure is not permanent, and in the future, if necessary, you will have the opportunity to change the design of the chainsaw to the original and continue to inspect it. The procedure itself is very quick and consists of the following steps:
First, you need to redo the clutch again. To do this, you need to grind out a smaller bowl and change the spring. These actions will cause the starting torque to decrease and the size and mass to become more balanced. Second, the bowl and clutch cover need to be connected with clamps, which are then connected with a screw and washer.
The screw and washer closes and connects the bowl and shaft, handle.
Transmission oil can only be poured in after the above steps have been completed. Next, the cover should be repaired with sealant. Some owners recommend making a throttle handle on the chainsaw-based engine for ease of operation.
Tips and recommendations from chainsaw-based appliance owners
One user of an engine for a boat from a Stihl 180 chainsaw and a propeller from a Mercury 2.5 gives some tips on motor construction and assembly. The man himself has a large inflatable boat that holds two passengers and lots of stuff. He says they got about 4 km/h, provided they also had a boat with two passengers in tow.
Video reviews
Video on how to make a boat motor from a chainsaw with your own hands
Testimonials from owners of boat motors from a chainsaw
Experienced owners and new users note the efficiency and performance of the self-assembled engine. All claim that on the forums you can find many programs, drawings, tips and videos on making a boat motor from a chainsaw. The information is in the public domain. The low cost of the resulting boat equipment does not go unnoticed. In addition, users point out the main advantage: after replacing the chainsaw, it can continue to be used for its intended purpose.
Murat, 38, Khabarovsk
“I decided not to stir and bought the nozzle separately, which cost me almost as much as a Stihl 180. On the chainsaw itself, the fuel tank is quite small, so for long distances it is not enough. My design runs for an average of 15-20 minutes at medium rpm. After I shut off the engine, I give it a 5 minute break, fill up the tank and sail on. Of course, maximum power will quickly deactivate any engine. If used carefully, the nozzle is a great substitute for expensive off-the-shelf boat motors. “
Alexander, 45 years old, Kiev
“I did not want to spend much and decided to assemble the attachment with my own hands – a boat motor from an old motorcycle. Was pleasantly surprised when I found out that after all this machinations chainsaw can be returned to its original use. I found the schematics of the attachment on the Internet, watched some videos and got to work. The whole assembly process took me a few hours.
