Water tech owners know that aggressive water environments don't spare anything, salt, sand, constant exposure to ultraviolet light and temperature changes can quickly turn a brand-new engine into a rusty pile of metal. boat-case It becomes not just an accessory, but a vital element of equipment that prolongs the life of the unit.
Many beginners mistakenly believe that it is enough to simply cover the engine with plastic or old rags, but this approach can lead to condensation, which will trigger irreversible corrosion processes inside the crankcase and on the external parts, a well-chosen awning provides ventilation, while maintaining complete tightness from precipitation and dust.
In this article, we will explore in detail why saving on a protective case is often more expensive than buying one, and what materials are really able to withstand the harsh conditions of use on water. You will learn about the nuances of cut that prevent the awning from breaking at high speed, and how to properly care for the fabric so that it does not lose its properties.
Why do you need a protective awning for outboard motor?
The main function of any protective coating is to create a barrier between the mechanical components of the engine and the external environment, when the boat is stationary or stored in the garage, dust settles on the engine, which, combined with moisture, forms an abrasive mixture, which, when first started, can damage the movable parts of the cooling system or control system.
Particular danger is posed by ultravioletPlastic casings of modern engines, whether it be Yamaha, Tohatsu or HondaWhen exposed to the sun, it becomes fragile and fades, and cheap plastic models can even crack with vibration if they've been exposed to the scorching sun for long periods without protection.
⚠️ Warning: Never leave the engine covered with a dense cloth immediately after the trip, if the engine is still hot, this creates a greenhouse effect, accelerating the corrosion of internal parts due to a sharp change in temperature and condensation of moisture.
And also, a high-quality case protects the rubber seals and the glands from drying out, and the rubber in the air loses its elasticity, cracks, and starts to let water into the lower unit. Sealed case preserves the microclimate, preventing premature aging of rubber components.
Spray rubber seals with silicone lubricant before putting on the cover for long-term storage - this will keep their elasticity for many years.
Manufacturing materials: Oxford, tarpaulin or PVC
Material choice is a balance between cost, weight and durability, and there are many options on the market, but the ones that are the most popular are polyurethane or PVC-coated fabrics, which are water-resistant and rot-resistant.
Fabric Oxford (Oxford) With a density between 450D and 600D, it's considered the gold standard for the low-end and mid-price segment, and it's lightweight, strong, and well-fit, but for harsh environments, like standing in the sun by the sea, it's better to choose materials with increased UV stability.
- 🧵 tarpaulin Very durable and cheap, but in the cold it sank, and in the sun it can smell bad and stick.
- ☔ PVC It is ideal for keeping a boat outdoors all year round, but it has a lot of weight.
- 🌬️ Acrylic tissue They are often used in the premium segment, they breathe, preventing condensation, but require special impregnation-impregnation once a season.
It's important to pay attention to the quality of the seams. boat-caseIt's not ultraviolet, it's going to rot faster than the fabric itself, and the best manufacturers are using Teflon-coated polyester filaments.
Design features and fastening system
Just throwing a bag on the engine is not enough — it will blow away at the first gust. So the mounting system is a critical part of the design. Quality models use a combination of an elastic cord (rubber) around the perimeter and additional fixing elements.
For high-powered long-leg motors, special valves or skirts are often provided that cover the dead-water below the current gearbox, preventing spray and dust from entering the bottom, where usually located. oil-filter and the drain plugs.
| Type of attachment | Reliability | Usability | Under what conditions |
|---|---|---|---|
| Rubber cord (edging) | Medium | High. | Short-term parking, garage |
| Fastex straps | High. | Average | Transportation by trailer |
| Kuliska with a cord-cord | High. | Low (long to tighten) | Long-term storage |
| Combined (rubber + straps) | Maximum | Average | Operation under all conditions |
The vents deserve special attention, and they should be protected from insects by a net and be located at the bottom of the casing to allow air circulation, but not to let rain in.
The perfect case sits like a poured: it should not hang out in the wind, but should not be stretched to the ringing, deforming the fabric.
How to properly remove the size for sewing
If you decide to order an individual tailoring or sewing boat-case yourself, accuracy is key to success. Standard 5 hp or 15 hp dimensions may not be suitable because the size of the engines of different brands differ.
You'll need a soft tailor tape, measuring the maximum projections of the casing, and remember to consider the height of the handle of the bumper, if the motor is manually operated, and the position of the lower unit.
- Measure the total height from the top point of the gas handle to the lower unit slice.
- Measure the maximum width in the widest part of the casing (usually the cylinder area).
- Measure the depth (the distance from the front of the casing to the back where the transom is attached).
- Add to the obtained values of 3-5 cm for free fitting and turns for seams.
When removing measurements, be sure to take into account the presence of additional accessories: sonar sensors installed on the deadwater, or non-standard handles. For engines with an oil injection system, the place for the tank is important if it acts beyond the dimensions of the main casing.
Nuance for two-stroke engines
When sewing a case for a 2T engine, be sure to provide for the possibility of installing an absorbent diaper under the cover to collect oil residues if the boat is stored vertically.
Step by step: sewing a cover yourself
Self-manufactured protection can save up to 70% of the cost of a store analog and be confident in the quality of materials. To work, you will need a sewing machine with a foot for heavy fabrics, needles No. 100-110 and durable threads (lausan or capron).
The first step is cutting. The best way to do this is to use a life-size pattern drawn on paper or directly on the fabric with chalk. Don't forget to use seams -- for dense tissues, they should be at least 1-1.5 cm.
☑️ What it takes to sew a case
The parts are best stitched in a double stitch for strength, and the seams are recommended to be immediately pasted with a special tape or smeared with a sealant for seams so that water does not leak through the holes from the needle.
The final step is to install fasteners, carbine or fastex straps are sewn in the most tension areas, and after sewing, it is advisable to treat the fabric with a water-repellent spray (DWR) to enhance the protective properties.
⚠️ Warning: When working with synthetic fabrics (PVC, Oxford) use only synthetic threads. Cotton threads will rot quickly, and the case will disperse at the seams after the first wintering.
Care and storage of protective tent
Even the most expensive boat-case The mud and salt left on the fabric work like an abrasive and break down the protective layer of the polymer, and regular washing with warm water with soft soap will prolong the life of the product.
Store the case in a dry, ventilated place. In any case, do not put a wet awning in a bag or bag - this is guaranteed to lead to mold and an unpleasant smell, which is difficult to get rid of later.
- 🧼 Wash the case no more than once a season using a soft bristling brush.
- ☀️ Dry the product only in the straightened form, in the shade. Direct sunlight on wet fabric can damage the structure of the fibers.
- 🛡️ Once a year, treat the fabric with a restorative impregnation to restore water repellent properties.
If you notice minor damage or sprawling seams, don't delay repairs. PVC or Oxford can be sealed yourself using remixes that often come with PVC boats.
To store the case, roll it up in a roll, rather than folding it in four, which will prevent the formation of cloth cloth cloth cloth cloth, which can crack over time.
Comparison of ready-made solutions and individual tailoring
Buying a finished case in a store is the path of least resistance. You get the product with a warranty, often with the brand name of the engine manufacturer. However, finding a model that fits perfectly on a particular motor with all the nuances in mind can be difficult.
Individual tailoring in the studio or yourself gives you complete freedom, you choose the color, density of fabric and configuration of the mounts, this is especially true for owners of rare or very powerful engines, for which the mass market offers only universal, but not always convenient solutions.
The table below compares the two approaches:
| Criteria | Finished case | Individual tailoring |
|---|---|---|
| Price. | Medium/High | Low (with their hands) / High (master) |
| Time of receipt | Instantly. | From 1 day to 2 weeks |
| Perfect landing. | Approximate. | 100% accuracy |
| Selection of materials | Limited by range | Any available on the market |
Ultimately, the choices are your priorities: If you want speed and brand, choose a store. If you want maximum protection and durability, you better invest time or money in a customized option.
Can I use a cover while the boat is moving?
Absolutely not. The case is only for storage and transportation on a trailer, and when it's moving on the water, it will create a huge resistance, it can break, and most dangerously, it will wind itself into a screw, damaging a dead water or gearbox.
How often should I change my car to my motor?
The life of a quality Oxford 600D cloth case is 3-5 years of active operation, and if the boat is in the garage, then 7-10 years, signs of replacement: loss of water repellent properties, cracks in the fabric, rotting threads in the seams.
Do I need a special cover for an electric motor?
Yes, but it's a little bit lower. An electric motor doesn't need ventilation as much as an internal combustion engine, and it doesn't heat as much, it's about protecting it from moisture and mechanical damage. Often a simple cape case is enough.
Will the case protect you from theft?
A typical fabric case -- no, it's easy to cut, but there are models with reinforced layers and lock loops that can make it difficult to access the engine, but they're not a full protection against theft.