Many inflatable boat owners think of the comfort of moving gear along the shore, and dragging a heavy boat with an engine and battery in hand is not an easy task, especially if the descent to the water is far from the parking lot. It is at this point that you need to install transom wheels. It is not just convenience, but a real saving of energy and time before you start fishing or cruising.
The installation process requires care, as PVC materials are sensitive to damage, and improper installation can disrupt the tightness of the transom. However, if you follow proven technology and use the right tools, the task becomes quite solvable even for a beginner. In this article, we will discuss in detail how to choose the right place than to drill a composite plywood transom and how to securely seal the holes so that your boat lasts for many years.
Choosing the Right Place to Install Wheels
The first and perhaps most critical step is the scoring. Tranza Boat manufacturers usually provide for reinforced accessories, but if they don't, they'll have to do it themselves. The rule is that the distance from the bottom edge of the transom to the wheel axis should be such that the wheels don't touch the roughness of the ground when they move, and they don't raise the boat's nose too high when they're transporting.
The optimum height of the installation varies depending on the model of the boat and the type of wheels, however, the standard is the distance of about 20-30 cm from the bottom cut of the transom.
It is important to note that when installing wheels in the folded position, they should not interfere with the work. lower unit Or to run into the engine when the boat is full.
Before you pick up a drill, be sure to try on the brackets in different positions.
Sometimes, shifting the mounting point just a couple of centimeters up or down drastically changes the boat's balance when towing.
⚠️ Attention: It is strictly forbidden to drill holes in places where the internal seams of cylinders pass or where the thickness of the plywood transom is reduced due to the design features of the model.
Required tools and materials
To do the job properly, you'll need not only a pair of wheels, but a specific set of tools. A standard home craftsman's kit may not be suitable, because working with composite materials and metal requires precision. electric drill Or a screwdriver with good torque.
Drill thick plywood covered with fiberglass, conventional drills on wood is not recommended - they will quickly blunt and begin to "burn" the material.
Best to use. cobalt-drill metal or specialized drills with a hard alloy tip, which will provide a clean cut without chipping.
To seal the holes, which is a critical step, you will need a quality polyurethane or silicone sealant that is resistant to water and ultraviolet. bolt with a wide cap (usually M6 or M8), nuts, washers and, preferably, enlarged washers or special plates for load distribution on the inside of the transom.
- 🛠️ Electrical rod or powerful screwdriver
- 🔩 Set of drills (cobalt or hard-alloyed)
- 💧 Water-resistant sealant (polyurethane or silicone)
- 📏 Roulette, marker and core for markup
- 🔧 Wrecks and screwdrivers of appropriate size
Buy a drill of a slightly smaller diameter than you need, and drill the hole gradually into several passes - this will prevent chipping of the laminate on the transom.
Marking and preparation of the transom surface
Surface preparation is a step that is often underestimated, but it depends on the durability of the attachment. Before applying the marking, carefully clean the outside of the transom from dirt, sand and residues of an old sealant. If the surface is greasy or dusty, the marker can be erased during operation, and the markings will be lost.
Use a sharp marker or a special construction pencil to apply the drilling points.
Don’t rely on the eyeglass: use it. roulette and a coalstone to make sure that the holes for the left and right bracket are on the same horizontal line.
Once you've applied the dots, take a core or a nail and carefully make small indentations in the future drilling locations, which will prevent the drill from slipping off as the drill cartridge starts spinning, and if you skip that step, you risk scratching the side of the boat or making a hole in the wrong place that can't be fixed.
☑️ Preparation for drilling
Drilling and sealing technology
The most critical thing is to make holes, drill strictly perpendicular to the surface of the transom, holding the drill at a 90 degree angle. If you hold the tool at an angle, the hole will be oval, and the bolt may not stand up straight, which will cause the entire structure of the wheels to be distorted. Start drilling at low speeds, gradually increasing the speed, so as not to overheat the material.
Once the drill has passed through, do not rush to take it out - walk back and forth several times to clean the edges of the hole from the burrs.
The internal walls of the obtained channel must be smeared abundantly. sealant before the bolt is installed.
The process of sealing is this: apply a thick layer of sealant around the hole on both sides of the transom, as well as on the bolt itself. When you insert the bolt and tighten the nut, the excess sealant should come out, forming a characteristic "roller," which means that all the voids are filled, and water will not be able to penetrate into the layered structure of the transmunus, causing it to be stratified.
⚠️ Attention: Never use conventional acrylic sealant or mounting foam to seal the transom - they are destroyed by water and vibration, which will lead to moisture getting inside the plywood.
What to do if the hole is too big?
If you accidentally drilled a hole larger than the desired diameter, do not despair. You can use a bolt of larger diameter, previously drilling the hole under it, or insert a wooden chopik lubricated with epoxy into the hole, let it dry and drill again in the center.
Comparison of types of wheel anchorages
There are many options on the market for tanner wheels, and they differ not only in the diameter of the wheels themselves, but also in the type of attachment to the boat. Understanding these differences will help you choose the best option for your PVC vessel model. Some systems require drilling, while others can be installed without violating the integrity of the transom.
The table below compares the main types of fasteners available today:
| Type of attachment | Necessity of drilling | Reliability of fixation | Complexity of installation |
|---|---|---|---|
| Fixed (bolted) | Yes (required) | Maximum | High. |
| Removable (on pins) | Yeah (in translants) | High. | Medium |
| Sling (on belts) | No. | Medium | Low. |
| Magnetic (rarely) | No. | Low. | Low. |
Stationary models that are screwed tightly provide better stability when moving over rocks or sand.
Removable options on pins are convenient because the wheels themselves can be removed and removed into a backpack, leaving only the response bushings in the transom.
Wheel installation and final assembly
Once the holes are drilled and filled with a sealant, the stage of direct installation of the fasteners begins. Insert the prepared bolts on the outside of the transom, wearing wheel brackets on them. puck or special metal plates that will distribute the pressure of the nut over a large area of plywood.
Tighten the nuts evenly, without putting excessive effort so as not to push the soft PVC material with a washer.
Best to use. growers (spring washers) or self-contradicting nuts so that vibration when the boat moves does not unwind the connection.
Once installed, let the sealant dry completely. The polymerization time depends on the type of composition used and is usually between 12 and 24 hours. Do not try to load the wheels or check their performance ahead of time - the unfrozen sealant may shift and the leakage will be impaired.
Use self-contradicting nuts and growers during installation, so that the vibration of the motor and road does not weaken the fastener during operation.
Care and maintenance of transom wheels
Once installed successfully, it is important to keep regular maintenance of the mechanism. Salt water, sand and dirt can quickly disable wheel bearings and movable parts of the mounts. After each foray into the reservoir, especially if it was the sea, be sure to wash the wheels with fresh water.
Periodically check the tightening of the bolts - in the first few trips they may weaken slightly due to shrinkage of materials.
Lubricate the wheel axles and folding hinges silicone or a lithium lubricant that is resistant to leaching.
If you notice that the wheels are starting to jam or creak, don't ignore this. Take the mechanism apart, clean the old lubricant and dirt, and apply a new portion of lubricant, which will extend the life of the accessory and ensure smooth running when transporting the boat.
- 🚿 Wash the wheels with fresh water after each use
- 🔧 Check the tightening of the bolts before each season
- 🧴 Lubricate the moving parts once a year or as needed
- 👀 Visually inspect the condition of the tires for cuts
Can I install wheels on a boat without drilling a transom?
Yes, there are attachments that are attached directly to cylinders or trenchboards using belts and Velcro straps, but they are less reliable, can shift when moving, and are not suitable for very heavy motors. Drilling remains the most reliable option.
What wheel diameter is better to choose for sandy soil?
For sand and soft soil, it is better to choose wheels with a large diameter (300 mm or more) with a wide inflatable tire, which have less pressure on the ground and do not burrow as much as small alloy wheels.
Do I need to remove the wheels when driving on the motor?
Most of the transom wheels are designed to climb upwards and lock horizontally parallel to the bottom of the boat, and in this position, they do not create resistance to water. However, if the model does not provide reliable fixation in the upper position, the wheels should be removed to avoid loss at high speed.
What to do if the sealant stopped holding water?
If you notice the stains around the mounts, you need to remove the wheels, completely clean the bolts and holes from the old sealant, degrease the surface and apply a new layer of high-quality polyurethane sealant, observing the installation technology anew.