The question of proper transportation of outboard motor (outboard motor) arises before every owner of the boat, whether it is a compact one. flyboat Many beginners make the mistake of thinking that it is enough to simply put the unit on a transom, but ignoring the rules of fixation can lead to expensive repairs or complete loss of equipment at speed. The road is constant vibration, jerks and sudden changes in temperature that, without proper preparation, destroy the internal components of the engine.
Safe transportation requires a comprehensive approach that includes not only mechanical fastening of the engine itself, but also proper preparation of the boat complex for driving on the highway. In this article, we will discuss in detail everything from the choice of fasteners to the legal intricacies of transporting large cargo. Understanding the physical processes that affect the outboard motor when driving will help you save the life of the equipment and avoid accidents on the road.
Selecting the right position: vertically or horizontally
The first and most important decision you have to make before loading is where the engine will be transported. There are two main options: vertically mounted on a transom and horizontally placed in the back of the car or on the floor of the trailer. The vertical method is considered the most gentle for internal machinery, since the oil remains in the crankcase and the fuel system is not subject to pressure changes.
However, vertical transportation creates high sailing and increases the risk of the whole complex tipping over in a sharp maneuver or gust of side wind. transport-holdThey're hard at fixing deadwell in a vertical plane, so you can't have any vibrations, and horizontal stacking, in turn, lowers the center of gravity and improves aerodynamics, but requires a mandatory drain of oil and fuel to avoid them getting into the cylinder or the carburetor.
For motors with a capacity of more than 15 hp, vertical transportation on a standard transom without additional amplifiers is often impossible due to the weight of the unit. In such cases, experienced boaters recommend using special padding or disassembling the engine, putting it in the trunk with precautionary measures. boat-trailer and the technical specifications of the engine.
⚠️ Attention: Never transport a four-stroke motor in an inverted position (candles down) without first draining the oil. This will result in instant hydraulic shock on first start and overhaul of the piston group.
Technology of reliable fastening of the motor to the transom
If you've decided to drive the motor in the running position, standard clamping of the tanning plates may not be enough. At high speed, vibration can unwind even tightly tightened screws, so the use of additional locking elements is mandatory. propeller The sleeves that are placed in the sleeve and the sleeve are then placed in the sleeve.
The fixation process begins with the engine lifting to the topmost position (trim up), after which a fastener is inserted into specially designed holes. It is important to make sure that the screw thread corresponds to the pitch of the carving on the engine, so as not to disrupt the seats. For additional insurance, professionals recommend using scrub belts with a ratchet mechanism, covering the deadwell and attaching to the frame of the trailer or the sides of the boat.
Special attention should be paid to the condition of rubber dampers and gaskets at the point of contact of the motor with the transom. During prolonged shaking, they can shift, which will lead to distortion and damage to the datawell. Before each trip, check the tension of the belts and the lack of backlash in the mounting units, as weakening of the fixation in the way can have fatal consequences for the integrity of the boat complex.
☑️ Checklist for engine attachment
What to do if there is no standard hole for the transport screw?
Some models of motors or homemade transmutation boards may not have a hole under the transport bolt. In this case, it is strictly forbidden to drill the deadwell yourself. Use the method of binding: run a strong sling through the deadwell and fix it on the frame of the trailer or durable elements of the boat, creating a rigid triangular design that excludes the swing of the motor back and side.
Protection from vibration and external influences
The roadbed is a source of constant high-frequency vibration, which is detrimental to the mechanisms of the outboard motor. Even with perfect fastening, microvibrations are transmitted to the carburetor, ignition system and electronics, gradually loosening the connections. To minimize this effect, it is recommended to use vibroisolating gaskets made of dense rubber or special polyurethane between the metal surfaces of the attachment.
External factors such as dust, dirt, insects and oncoming airflow also pose a threat. The open air intake can become clogged with dust, which will lead to impoverishment of the mixture and overheating of the engine. The use of a protective cover made of breathable fabric (for example, oxford or a spunbond) will protect the engine from abrasive wear and ingress of foreign objects, while maintaining ventilation.
Keep in mind the corrosion resistance of the mounting elements: Road reagents, salt (if you are coming from the sea) and moisture create an aggressive environment. conservatism And check the metal clamps and chains, and ignoring corrosion treatment can cause your fastener to rust and lose its strength in the season.
Use silicone spray to treat rubber seals and cover before you travel, which will prevent rubber from freezing to the metal in the cold and preserve the elasticity of the materials.
Comparison of fixation methods: risk table
To illustrate this, we'll look at the basic mounting techniques and how they affect the safety of the motor during transportation, and the choice of the wholesale option depends on the distance, the quality of the roads, and the type of vehicle you're using.
| Fixing method | Vibration risk | Risk of rollover | Need for a discharge of fuels |
|---|---|---|---|
| Transport screw + belts | Low. | Medium. | Not required |
| Only trans-panel plates | Highly | Highly | Not required |
| Horizontal in the back | Medium. | Low. | Sure. |
| Special rack in the trailer | Minimum | Low. | Preferably. |
As you can see from the table, using specialized racks or a combined method (screw + belts) provides the best protection, but even the most reliable method will not save you if the trailer itself is not ready for heavy load. springs The wheels are inflated according to the manufacturer’s recommendations.
⚠️ Attention: When transporting a motor with a capacity of more than 20 hp in a vertical position, the speed of the road train should not exceed 60-70 km / h Exceeding this limit sharply increases the amplitude of the fluctuations of the deadwell.
Legal aspects and requirements of the SDA
Transportation of a motorized boat on a trailer is regulated by traffic rules, and their violation can lead to fines and delay of the vehicle. The main requirement concerns the dimensions of the cargo: if the engine or mounting structure protrudes beyond the boat or trailer by more than 0.4 meters in width or 1 meter in length / height, the cargo is considered to be large-sized.
If the vehicle is oversized, you need to set the "Big load" sign and, if necessary, arrange escort, it is also important that the load does not cover the car's lights, license plates and turn signals. If the motor is installed vertically and closes the driver's view through the cabin mirror, this is also a violation requiring the use of additional side mirrors.
The fire safety and traffic regulations strictly regulate the amount of gasoline that can be carried in the canisters, the fuel remaining in the engine tank should be minimal, and it is desirable to disconnect the tank from the fuel system to avoid leaks under the influence of centrifugal forces.
The law does not prohibit the carriage of the motor on a transom, but it requires that it be reliably fixed, which prevents falling on the roadway.
Preparation for a long trip: checklist
When planning a long trip to a fishing or recreational destination, you need to conduct advanced training. Prolonged vibration and changes in climate zones can reveal hidden defects, invisible on short trips. Start by visually inspecting all the attachment nodes, checking for cracks in the transom and scuffs on the daywell.
Be sure to check the status of the electrical connectors and the hinge-roomer. If the route passes through mountain passes or regions with hot climates, make sure that the cooling system does not contain air traffic jams and the thermostat works correctly, even if you do not plan to start the engine on the way. Prevention takes a little time, but saves from long downtime.
Remember to bring a minimum set of tools: wrenches, screwdrivers, spare bolts and WD-40. In road conditions, the ability to quickly tighten a weakened fastener can be crucial, and it is also recommended to have additional screed belts on hand in case of damage to the main ones.
☑️ Final check before departure
Frequently Asked Questions (FAQ)
Can I carry a four-stroke motor on my side?
It's not recommended. In four-stroke engines, the oil is in the crankcase, and at inclinations of more than 15-20 degrees, it can get into the combustion chamber or the crankcase ventilation system, which will lead to hydraulic shock when starting or burning the oil with smoke. If horizontal transportation is inevitable, the motor needs to be completely drained of oil and fuel, which takes time and skill.
Do I need to remove the motor from the boat during transportation?
For motors up to 5-6 hp, this is often impractical if there is a reliable mounting. However, for powerful units (from 15 hp and above), removing the engine and transporting it horizontally in the back or in a special box is much safer for machinery and reduces the risk of overturning the boat on the trailer.
How often should I check the mount on the way?
The first stop is required 10-15 km after the start of traffic to ensure that the belts are not stretched and the screws are not loosened, further checks are recommended every 100-150 km or after passing areas with poor road surfaces.
What to do if the transport screw is lost?
Operation without it is dangerous. As a temporary measure, you can use a bolt of similar diameter and threads of high-strength steel (strength class not lower than 8.8). The use of low-strength bolts (for example, from furniture assembly) is prohibited.It's best to order the original part from the dealer.