Installation transom-wheel It's one of the most useful modifications that an inflatable boat owner can make, and without it, it's a very hard physical task to go and get ashore, especially if the boat has a hard floor or a heavy motor, and properly mounted wheels allow one person to easily move a boat out of the water on sand, rocks or grass, saving a lot of time and effort before fishing.
It's important to understand that the installation process requires care and care, because it's about the integrity of the cylinders. PVC fabrics In this article, we will go through all the steps, from choosing the type of fasteners to the final height adjustment, so that you can get the job done efficiently and safely.
Selection of the type of fastening and preparation of tools
Before you start drilling, you need to decide on the design of the mounts. pressed and screwable The pinch models are mounted with studs that pass through the transomb and are fixed with nuts with a wide hat, which allows you to remove the wheels when necessary. The screwed versions are screwed directly into the transomboard and require more precise installation, but provide rigid fixation.
You'll need the minimum set of tools that any home craftsman can have to work with, and the quality of the tools directly affects the outcome, so only use the equipment that works.
- 🛠️ A drill or screwdriver with a set of drills for metal and wood.
- 📏 Roulette, coal mine and marker for accurate marking.
- 🔧 A set of wrenches or heads of the appropriate diameter.
- 🧴 Silicone sealant for PVC boats or polyurethane sealant glue.
Pay special attention to the choice of sealing compounds, conventional building silicate may not withstand constant contact with water and dynamic loads. polyurethane sealants, which remain elastic and do not crack when the transom is deformed. Also prepare a degreasing agent (acetone or alcohol) to treat the surface before applying the composition.
Marking and determination of the mounting point
The most critical step is the mounting position marking. A few centimeters error can cause the wheels to touch the cylinders when turning, or, conversely, to be too high and not touch the ground when the boat is fully loaded. The standard height varies, but the golden rule is to install the wheel in such a way that when lowered, it is below the bottom edge of the transom by about 2-3 cm.
First, inflate the boat to the working pressure and set it on a flat horizontal surface. Put the wheel bracket on the transom and visually assess the position. It is important that when folded, the wheels do not interfere with the installation of the motor and do not touch the inflatable elements. sink-board from plywood, make sure that the drilling sites do not fall on weakened areas or knots.
Use the angler to draw strictly vertical lines from the bottom edge of the transom upwards. The distance between the centers of the holes should exactly correspond to the distance between the holes on the mounting bar of the wheels. Any displacement will cause distortion, which will create unnecessary stress on the metal and can cause deformation of the attachment when loaded.
Drilling technology and sealing of holes
The process of creating holes requires care not to damage the structure of the plywood transmolta and not to tear the fabric of the cylinders on the inside. Before drilling, it is recommended to remove the transmolta board from the boat if the design allows it. If dismantling is not possible, be sure to insert a wooden bar or a dense plastic lining into the boat at the place of drilling, so that the drill does not go inward and break the opposite side.
The diameter of the drill should correspond to the diameter of the fasteners or bolts. For pressing systems, a drill is usually used 1-2 mm larger than the diameter of the stud to ensure free running and compensate for possible micro-shifts during assembly. For threaded mounts, the diameter is selected strictly under the thread to ensure a tight fit.
☑️ Pre-drill check
Sealing is a key to the longevity of your boat. Once the holes are drilled, the edges must be thoroughly burred and degreased. Then apply a sealant layer around the hole on either side of the transom. When you install the attachment element (a hairpin or a bolt), apply the sealant also to the metallic material itself. This creates a double barrier to moisture penetration.
⚠️ Warning: Never use acid silicones to seal transom holes, as they can cause corrosion of metal parts and damage to the plywood structure. Choose only neutral formulations marked "for PVC" or "for marine applications."
Installation of brackets and installation of wheels
After the openings and sealant are prepared, you can start installing the fasteners, inserting the studs or bolts into the holes, wearing wide washers (piataqs) on the inside of the transom, which distribute the load on the plywood area, preventing the material from pressing through when the wheel is pushed hard or hits the obstacle, and it is also recommended to apply a layer of sealant under the puck.
The nut tightening should be done evenly using two nuts (counternut) or a thread lock to avoid spontaneous unwinding from vibration. Excessive force when tightening can lead to deformation of the transom board, so act carefully, controlling the force.
The studs are mounted on the wheel brackets themselves. The design can vary: in some models, the wheels are fixed by splints, in others by clamping mechanisms. Make sure that the locking mechanism is smooth and securely keeps the wheel in working position. quick-releaseCheck the ease of removal and installation.
| Type of attachment | Advantages | Deficiencies | Recommended load |
|---|---|---|---|
| Push-up (pins) | Removable, do not require drilling of the transom (often) | They can be displaced by strong vibration. | Up to 80 kg |
| Threaded (in transom) | Maximum rigidity, reliability | Requires drilling, non-removable | Up to 120 kg |
| A hinged (hooks) | No need to drill, universality | Less stable, can scratch the side | Up to 50 kg |
Altitude adjustment and testing
The final adjustment is to adjust the wheels after the wheels are installed, and the main task is to adjust the height so that when the wheels are lowered, they take over the weight of the boat with the engine, lifting the transom above the ground. If the wheels are too high, they become useless; if they are too low, they will slow the boat down on the water, creating additional resistance.
The best way to do this is to install the motor, put a standard load (anchor, crates, gas tank) in the boat, and ask the assistant to raise their noses. In this position, the wheels must confidently touch the ground. Most modern models have adjustable height of the rack, which allows you to choose the optimal position.
Also check the wheels in the transport position, they should fit tightly to the transom or sides and not protrude beyond the dimensions of the boat more than necessary, this is important for safety when transporting on the trailer or roof of the car.
Care and maintenance of transom wheels
Operating in aquatic environments, especially salty ones, requires regular maintenance of metal elements of the structure. After every fishing or walk, it is recommended to wash the wheels and fasteners with fresh water to wash away the sand, silt and salt. This will prevent corrosion and jamming of the mobile mechanisms.
Periodically check the condition of the tires. Inflatable wheels They can lose pressure, and whole-casts can crack from ultraviolet light or frost. Timely replacement of worn wheels will protect you from trouble on the shore. Also, once a season, check the tightening of all bolt joints and the condition of the sealant at the attachment points.
If you notice that the wheels have started to creak or turn tightly, lubricate the bearing axis or hub with water-resistant lubricant (such as lithium).
⚠️ Warning: Keeping a boat with wheels installed in winter in the cold is not recommended. Rubber can become brittle and the metal will corrosion. It is better to dismantle the wheels and store them in a warm dry room.
Frequently Asked Questions (FAQ)
Can you install transom wheels on a boat without drilling a transom?
Yes, there are hinged wheel models that are mounted on the top edge of the transom using special clips or hooks, but these are less reliable under heavy loads and can shift. For heavy boats and powerful engines, a stationary installation with a transom fastening is still recommended.
What wheel diameter is better to choose for the sandy shore?
For sand and soft soil, large diameter (250-300 mm) wheels with a wide tread or inflatable chambers are the best choice, and they have less specific pressure on the ground and do not fail, unlike small plastic wheels, which are designed only for hard coatings.
Do I need to remove the wheels before launching the boat?
If you have an adjustable model, you just have to lift the wheels up to the top (transport) position, you don't have to remove them completely, but if the wheel design has protruding elements that can create water resistance or catch algae, it's best to dismantle them before going into deep water.
How often should the sealant be updated in the holes?
With good initial sealing and good materials, retreatment is required no more than once every 3-5 years, but each year before the season, the mounting sites should be visually inspected for cracks or signs of leakage.