Every boat owner has to get the power plant from storage to a reservoir or a service center, and the question of how to properly transport an outboard motor, especially a two-stroke one, is a subject of controversy among boaters. The wrong position of the unit when the car is moving can lead to oil leaking out of the gearbox, fuel entering the carburetor or even mechanical damage to the components.
Two-stroke technology has its own design features that dictate strict logistics rules. Unlike four-strokes, the mixture of gasoline and oil circulates throughout the cavities, and the lubrication system often relies on gravity or splashing, ignoring basic safety standards when loading can turn a short trip into expensive repairs.
In this article, we will discuss in detail all the nuances of preparing, laying and fixing outboard motor in the back or on the roof of the car. You will learn why the position "on the transom" is sometimes preferable to the horizontal, how to protect the unit from headwinds and what to do if the motor still had to put on the side. outboard And it'll keep you nervous before fishing.
Preparation of the motor for transportation
Before loading, there are a number of procedures that must be done: the main goal is to minimize the amount of liquids that can leak or leak where they should not. The first thing to do is to disconnect the fuel hose from the carburetor's fitting or fuel ramp. The rest of the gasoline in the hose is better to be drained into a separate container so that it does not spill in the cabin or trunk of the car.
Pay special attention to the system mixingIf you plan to park for a long time or transport in hot weather, it is recommended to develop the residue of fuel from the float chamber. All you need to do is to let the engine work for a few seconds after the tap is blocked or the hose is detached, and this will prevent the evaporation of light fractions of gasoline and the formation of resinous deposits inside the carburetor during idle time.
⚠️ Warning: Never leave a full tank of gasoline in an enclosed, unventilated room or sealed car kung: Fuel vapors are toxic and explosive, and rising temperatures can depressurize the tank.
You also need to check the condition of the lower unit and gearbox, make sure that the drain plugs are tightened and the osteoils are not visible damage, and if you notice oil leaks on the gearbox, you better add the lubricant to the level before transporting, or in extreme cases, put the motor so that the cork is on top, this will eliminate the loss of expensive oil. transmission-lubricant and the water entering the mechanism during the subsequent descent into the water.
☑️ Checklist for engine preparation
Choosing the right position: on the transom or lying down
One of the most common questions that beginners ask is: can you put a two-stroke motor on your side? The answer depends on the design of the particular model and the duration of transportation. Most modern IFVs up to 15 hp allow transportation in a horizontal position, but with serious reservations. The classic and safest option is transportation in a vertical position, simulating work on water.
If you use a specialised lodging or a rack in the back of a pickup truck, the motor is locked to the lower unit and leg. carburetor The fuel pump is in its natural position, the oil is in the crankcase, and the exhaust gases are not condensed into the silencer, but this requires a reliable fixation so that the vibrations of the body do not shake the mounts. Horizontal stacking is often inevitable with low-profile passenger cars or small trailers.
When stacked on the side, it is critical to observe orientation: the motor must lie strictly on a certain side specified in the manufacturer's instructions (usually the starboard side, if viewed from the screw side), in this position, oil from the crankcase does not flow into the cylinder through the exhaust windows, and the fuel mixture does not flow through the carburetor. hydraulic-impact at the first start, which can lead to a rod or piston.
For long-distance transports (over 100 km), it is still recommended to look for the possibility of installing the motor vertically. If this is not possible, use special stands that lock the leg at an angle of 45 degrees, this is a compromise option to reduce the risk of leakage of fluids and reduce the load on the bumper and mounting brackets.
Protection from external environment and mechanical damage
The road is not only vibrations, but also dust, insects, small stones and oncoming airflow. Even at moderate speeds, airflow can cause significant damage to unprotected nodes. Therefore, the use of a protective cover is a prerequisite for proper transportation. The cover must be made of dense, water-repellent fabric, such as Oxford, and have a soft inner lining.
Particular attention should be paid to protection carburetor And the dust that gets into the intake tract will cause the cylinder-piston group to wear abrasively, which is like death in a two-stroke motor. Make sure the case fits tightly around the motor head and has no holes in the air intake area. If there is no standard cover, you can use a plastic bag tightly secured with rubber band, but only as a temporary solution.
⚠️ Warning: Do not use rags or rags to pack your engine, which may wind over rotating parts during inspection or accidentally get into the cooling system, and avoid materials that may clog the channels.
Mechanical protection of the lower unit and propeller is also important. When driving on the road from under the wheels in front of the cars going, gravel flies. chips on the lower unit will lead to corrosion, and damage to the propeller blades will lead to vibration and destruction of bearings. To protect the screw, use a special transport cap or at least a dense fabric wrapped around the lower leg. If the motor is in the body next to other loads, be sure to put soft buffers in between them.
Can I drive the engine without a cover?
A short, low-speed trip around the city is permissible without a cover, but only in dry weather. However, dust and insects will still get into the cooling system and the electrics. For the highway, the cover is mandatory, since the oncoming airflow at 60 km / h carries enough energy to damage the paintwork and clog the cooling ribs with debris.
Comparison of modes of transportation: risk table
To organize the information and choose the best option for your situation, consider the main methods of transportation and their impact on the nodes of the two-stroke engine.
| Method of transport | Motor position | Risk of oil leakage | Risk of fuel entering cylinder | Recommended distance |
|---|---|---|---|---|
| Vertically on the transom | Worker (90°) | Minimum | Missing. | No restrictions. |
| Inclination 45° | semi-reclining | Low. | Low. | Up to 300 km |
| Horizontal (right side) | Lying on my side | Medium. | Medium. | Up to 100 km |
| Horizontal (incorrect side) | Lying on my side | Highly | Highly | It is strictly prohibited |
And you can see from the table that vertical is the ideal option, but if you own a sedan or a hatchback, you have to make trade-offs, and in these cases, it's critical to keep the transportation time, and the longer the motor is in an abnormal position, the more likely it is that fluids will migrate through internal channels.
Also, you need to consider the effects of vibration. When you stack horizontally, the weight of the motor is distributed differently, and the attachment points to the pad are subjected to increased loads. Use damping pads made of rubber or foamed polyurethane between the metal of the lower unit and the body of the car. This will reduce the transmission of high-frequency oscillations that can cause fatigue destruction. bracket or weakening of bolt joints.
Vertical transportation is the only way to completely eliminate the risk of hydraulic shock and loss of lubrication at any distances and speeds.
Fixing and fastening in the car
Safety depends not only on the position of the motor, but also on the reliability of its attachment. The displacement of a heavy unit during a sharp braking or turning can lead to an accident. To lock, use only specialized whip belts or screed belts. Ropes and elastic harnesses are not suitable for this purpose, since they tend to stretch and weaken in vibration.
The engine is mounted by the hard elements of the lower unit or by the brackets of the mount to the transom. It is strictly forbidden to strap a roumple, fuel tank or plastic casings. The roumple can not withstand the load and break, and the plastic will crack, leaving you unprotected. If the motor is in the trunk, put your foot on the side or a special stop to prevent movement in the longitudinal direction.
When transporting on the roof of the car (on a special boot for boats or engines), the wind load increases many times, in this case, you need to use a windshield or a dense case that will not sail. Additional fixation is required for the fuel tank, if it is installed on the engine - it is better to remove it and transport separately in a vertical position inside the cabin, observing fire safety measures.
- 🔒 Always check the tension of the belts after the first 10-15 kilometers of the journey, as a new laying can shrink.
- 🚗 When transporting in the cabin of the car (for example, a minivan), be sure to open windows or provide ventilation to prevent the accumulation of fuel vapor.
- 🛑 Do not overload the roof of the car: the weight of the motor together with the fastener should not exceed the maximum load on the roof specified in the vehicle passport.
Post-transportation activities: launch and verification
Once you have the motor to the water, don't immediately pull the starter cord. If the motor is being transported horizontally, you have to give it time to stand down. Set it vertically on a transom and wait 10-15 minutes, during which time the oil from the cylinder and silencer (if it gets there) flows back into the crankcase, and the fuel mixture in the carburetor stabilizes.
Before starting, carefully inspect the lower unit for damage sustained in transit. Check if the fasteners of the rods have weakened. If the engine was on the side, it is recommended to turn the spark plug and check its condition. The presence of oil on the candle electrodes indicates that the lubricant has entered the combustion chamber. In this case, the candle must be dried or replaced, and also slowly turn the crankshaft with a starter several times when the candle is turned out to remove the excess fluid.
⚠️ Attention: Starting the engine with oil in the cylinder (hydraulic impact) can lead to a failure of the rod or deformation of the piston. If you feel an incomprehensible resistance when scrolling with the starter or hear gurgling, be sure to remove the candle and blow the cylinder.
The first minutes of work after a long journey should be at idle speed. engineThe appearance of foreign knocks, the change in the color of the exhaust (for example, thick white smoke indicating the combustion of oil) or uneven operation should be alerted. If the engine is running smoothly and the cooling system gives a stable stream, you can increase the speed and get on the water.
If after transportation the engine does not start well, try to slightly enrich the mixture by closing the air valve, but do not overdo it so as not to pour a candle.
Frequently Asked Questions (FAQ)
Can I carry a two-stroke engine with the remaining gasoline in the tank?
Short-term transportation (up to 1 hour) with residual fuel is permissible if the fuel crane is blocked and the hose is disconnected. However, for long trips, the tank is better to empty. Gasoline can flow through the sapuna when atmospheric pressure changes or slopes, creating a fire hazard situation and odor in the cabin.
What if I drive the engine on the wrong side?
If the distance was short (less than 20 km), it probably didn't matter. Put the engine upright, let it stand for 20-30 minutes. Before starting, turn the candle and check if there is no oil there. If the candle is dry or slightly moist from gasoline, you can start. If oil pours, dry the cylinder with a scrolling starter.
Do I need to remove the screw before transportation?
For short trips in a case, the removal of the screw is not necessary if it is securely fixed with a splint. However, during long transport or if there is a risk of blowing the screw against the load, it is better to remove it, this will also allow you to lubricate the gear shaft and check the condition of the coils.
How to store the engine in the winter after the season?
Before winter storage, be sure to extract all the fuel from the carburetor, replace the oil in the gearbox (even if it has been changed recently to remove possible water), and can the cylinder by pouring some oil through the candle hole.