Inflatable boat owners often face the challenge of how to safely remove the motor from the transom without assistance. The weight of the engine can reach 30-50 kg, and the unstable position of the boat on the shore or in the garage creates a risk of falls and injuries.
In this article, we will look at proven methods of using mechanical assistants, from simple levers to complex block systems. You will learn how to prepare the workplace, what tools will be required and what mistakes beginners most often make when performing this procedure. engine-break It will extend the life of both the engine itself and the transom board of your boat.
Safety should be priority number one. Improper fixation of cargo can damage the lower unit or even cause a heavy unit to fall on the leg. We'll look at the nuances of working with different types of fasteners and insurance methods.
Workplace preparation and situation assessment
Before any manipulations, you need to carefully prepare the site, the ideal option is a flat concrete floor in the garage or a solid ground by the water, soft grass or sand can cause the boat to skew at a critical moment when the engine is already disconnected from the transom, but still hangs on the slings.
Estimate the weight of your engine. For models up to 5 hp, it is often enough to simply remove them with your hands, but already 9.9 hp and above will require a mechanical advantage. If you plan regular maintenance, it makes sense to equip a stationary lift point, such as a ceiling crane or tripod.
⚠️ Warning: Never try to lift the engine while standing on a slippery shore or on the sides of an inflated boat. This is a guaranteed way to get injured or damage cylinders. PVC boats.
Check the condition of the transom board, if it has cracks or traces of stratification, the load from the lifting mechanism can be fatal for it, in such cases, you need to strengthen the transom or use distribution plates to prevent the structure from breaking under the weight of the engine.
two-stroke to 10bhp.
four-stroke 15-20bhp.
Powerful four-stroke 30+ hp
Electric motor--
Use of mechanical winches and thaws
The most efficient way to lift heavy units is to use a hand winch, which allows one person to lift the motor off the water or off the transom, and it works by transferring force through a gear system, which gives you a multifold gain in power.
You need a reliable support to organize the process, which can be a tripod (tripod) mounted directly above the engine, or a beam thrown over the roof of the garage, and it is important that the winch mounting point withstands a weight that exceeds the weight of the engine by at least one and a half times.
- 🔹 Secure the winch on a stable structure, checking the reliability of the carbine or hook.
- 🔹 Pass the cable or sling through the engine's eyelets, using soft slings to avoid damaging the paint.
- 🔹 Start the rotation of the handle smoothly, making sure that the cable is wound evenly without overlapping.
- 🔹 After lifting, fix the load on weight, if the design of the swab allows, or substitute the stops.
When working with winch-hand It's important to control the position of the motor. It should not swing, because it can lead to a collision with a trawler or the side of the boat. If the motor rises from the water, let the water drain before the final fixation to reduce the weight.
Use slings with length adjustment - this will allow you to accurately center the motor relative to the transom before the start of the lift, avoiding distortions.
Block and waist systems for lifting
If the winch is not available, a block system is a great alternative. A polypast can be used to increase the force multiple times. For example, a two-block system (one moving, one stationary) gives you a two-fold gain in strength, allowing you to lift a 40-pound motor with a force of 20 kg.
To implement this method, you will need a strong cable or synthetic rope, as well as a set of blocks with carabiners. The cable is passed through a fixed block fixed at the top, then through a movable unit on the motor and again returns to the operator or is fixed at the top.
| Type of system | Number of blocks | Winning in force | Difficulty of installation |
|---|---|---|---|
| Single block | 1 (fixed) | 1:1 (change direction) | Low. |
| Simple polypaste | 2 (1+1) | 2:1 | Medium |
| A complicated polypast | 3 and more | 3:1 and higher | High. |
| Tal chain | Built-in | Depends on the model. | Low. |
It's important to build the circuit right so that the cable doesn't rub against the sharp edges of the blocks and doesn't jam. polypaste The length of the cable you choose increases in proportion to the gain in strength, so make sure you have enough rope to lift the motor to the desired height.
How to lubricate blocks for a better move?
To lubricate polyspast blocks, use silicone sprays or special marine lubricants that are not washed away by water or destroy the synthetic cable. Avoid using solidol or litol in an open system, as sand and dirt will stick to them, which will quickly disable the mechanism.
Raising the motor with the help of a car jack
The adaptation of the car jack to lift the motor is a resourceful solution often used by fishermen in the field, a method that is especially relevant when there are no fixed structures, but there is a car or a stable frame.
The method is to create a lever: the jack is mounted on a reliable base (for example, a wide board thrown over the sides of the boat or installed next to it), and its emphasis is brought to a special bracket on the lower unit or to a transom bracket, if the design allows.
When you lift the jack, the motor breaks off from the water or the transom, and you have to quickly put the stops on the rods or lock the engine with slings, and this is a very careful method, because you have to be careful. hydraulic jack It can give jerks or slowly fall under load.
⚠️ WARNING: When using a jack, make sure the fulcrum does not push through the lower unit. Use rubber pads or wooden bars to distribute pressure.
It's not recommended to use this method to keep the motor elevated. The jack is a tool for short-term lifting, not for fixing the load. Once the motor is removed from the water, it should be immediately transferred to the trolley or table.
Check the serviceability of the bypass valve
Set the jack on a flat solid surface
Use safety locks under load
Not under the weight of the load.
Specialized crane snails and racks
For boat owners who often remove and install the engine, the best solution is to purchase or manufacture a specialized rack-rottle, which is an L-shaped structure with a winch or waist that is attached to the side of the car or installed as a separate module.
The crane allows the motor to be raised vertically, minimizing the risk of impact on the transom, which is usually collapsible, convenient for transport in the trunk of the car, and most often a steel profiled pipe, which provides the necessary rigidity.
And if you put this on the car's farcrow, it turns the car into a mobile crane, and it's particularly convenient on wild shores, where there's no infrastructure, you just stern up to the water, you lower the motor, you fix it on the transom, and you pull away.
In selection or manufacture crane Pay attention to the load capacity. The safety margin should be substantial, since the dynamic loads when the engine is rocked in the wind can significantly exceed the static weight.
The specialized farcop rack is the safest and most ergonomic solution for regular lifting of heavy motors alone.
Typical errors and security measures
Even with the right equipment, you can make mistakes that will make all the effort to zero. One of the most common problems is the use of poor-quality slings or ropes. The synthetic cable must be whole, without rubbing, and the carbines must have good latches.
Often beginners forget to disconnect the fuel hose and electrical connectors before starting lifting. A jerk at start can damage the engine power system. Always make sure that all communications are disconnected and free of tension.
- 🔹 Do not use rusty chains or cables with visible damage.
- 🔹 Do not stand under a hanging load, even if it is securely secured.
- 🔹 Do not try to catch a falling motor with your hands - it is better to let it fall than to get injured.
- 🔹 Check the reliability of the boat attachment to the ground or the car before climbing.
Pay special attention to the condition of the traverse board. If you're lifting the motor using a traverse as a lever fulcrum, make sure the board doesn't bend overly. PVC boats With a soft transceiver, it's critical.
⚠️ Attention: It is strictly forbidden to lift the engine by the starter handle or by the lower unit without special grips.
Can I lift the engine alone if it weighs 40 kg?
Yes, it is possible with mechanical means: winches, polyspaste or cranes. manual lifting of 40 kg per transom is extremely dangerous for one person and is not recommended because of the high risk of back injury.
Which cable is better to use for a homemade winch?
The best way to do this is to use a braided steel cable or a high-strength synthetic rope (like a Dainima) that is highly tensile and tensile resistant, and conventional household ropes are not suitable.
Do I need to drain the oil before lifting the engine?
The oil is not required to be drained if the lift is in an upright position, however, if the engine is expected to tilt more than 45 degrees, it is better to remove the oil from the gearbox to avoid hitting the cylinders (for 2T) or lubrication disturbance.
How to fix a winch if there is no ceiling in the garage?
In this case, you can use freestanding tripods (staffs) from a profile pipe or powerful racks that rest on the floor. You can also use a car porcelain with a mowing on it.