Operating a small vessel requires constant attention to the technical condition of the nodes, and the control system is one of the first in importance. Sudden failure of steering on water can lead to an emergency, so at the first sign of tight run or backlash, you need to conduct a diagnosis. steering-lineIt loses its mechanical properties over time.
The process of replacing this element does not require complex specialized equipment, but it requires accuracy, understanding the design of the engine and following a certain sequence of actions. Installation can lead to rapid failure of a new part or even damage to the engine gearbox. In this article, we will discuss each step of work in detail so that you can perform the replacement yourself and safely.
Before starting work, you need to prepare the workplace, as the procedure will take from one to three hours depending on the design of your boat. It is important to ensure that the transom of the boat is accessible from all sides, so that you can freely manipulate the motor and cable. If you plan to work outdoors, make sure that the weather is favorable and the motor is securely fixed or removed from the boat.
Diagnostics of steering status
Before you start dismantling, you need to pinpoint the source of the problem, because the tight steering can be caused not only by the cable. Often boat owners sin on the control mechanism when the problem lies in the heart of the boat. frictionone Or there's no lubrication in the joints, and careful inspection will help you avoid buying unnecessary parts and unnecessary work.
First thing you do is unplug the thrust from the thrust of the engine and try to spin the steering wheel. If the force is high even without the engine load, then the problem is exactly inside. steering-machine If the steering wheel rotates easily, and resistance only appears when the motor is connected, it is worth checking the condition of the hinges and corners of the turn.
⚠️ Warning: If you hear a characteristic crunch or creak when rotating the steering wheel, this is a sure sign of the destruction of the inner braid or lack of lubrication, which requires immediate replacement of the knot.
You also have to pay attention to the backlash, and you take the thrust and you swing it from side to side with the steering wheel locked, and if you have a free ride, you're wearing it out. tips Ignoring this symptom can cause the motor to stop responding to steering at a critical moment.
Selection of components and preparation of tools
To do this successfully, you'll need not only a new cable, but also the right toolkit. Using the wrong keys can lead to the slithering of the bolts, which will make it much harder to dismantle. Make sure you have everything you need on hand.
The main element is itself steering-lineThis is a type of cable that must match your motor model and the type of control (mechanical or hydraulic). Rack & Pinion Or rotary, which have different diameters of threads and lengths, and a mistake in choosing a length even a few centimeters can make installation impossible.
You will also need quality lubricantOrdinary solidol or litol is not suitable because they are quickly washed away by water and lose their properties at low temperatures. The ideal choice would be a lithium-based lubricant with molybdenum disulfide or specialized formulations like Mercury 2-4-C Marine Grease.
When buying a new cable, always take a model with a margin of length. The extra part can be carefully laid with rings in a handuk, but you can not make a short cable longer.
List of necessary tools and materials:
- 🔧 Set of carob and cape keys (basic dimensions: 10, 12, 13, 14, 17 mm)
- 🔨 Hammer and squirt (to knock out the fingers of the hinges)
- 🧴 Marine lubricant and solvent for cleaning old surfaces
- 🧤 Protective gloves and rags
Dismantling of old steering cable
The process of removing the old cable begins by disconnecting it from the thrust of the outboard motor, and this requires turning the lock bolt or knocking out the finger connecting the tip of the rope to the steering lever. WD-40 And give her time to do something.
Once we've disconnected from the motor, we'll move to the control mechanism itself, which is usually under the console or in a kunduk, where you have to unscrew the nuts that hold the body to the transom, and remove the locking rings from the shaft of the steering wheel, and be careful not to lose small parts like washers and spring-loaded fixers.
The most time-consuming step is often to pull an old cable over the side of the boat, and if the cable is laid through a corrugated cable or cable channel, it must be carefully removed, trying not to damage the wiring and other communications. instrument panel or part of the skin to access hidden sections of the track.
☑️ Preparations for dismantling
When you take the picture, look at the holes in the transom and the passageways of the cable, and if there is corrosion or sharp edges, they need to be cleaned and treated with anticort, otherwise the new cable will quickly fail, and also check the condition of the glands in the control mechanism, often replacing them prolongs the life of the entire system.
Installation of a new steering cable
Installation of the new element is done in the reverse order, but with the observance of important nuances. Before stretching the cable over the side, it is recommended to grease its outer shell abundantly to facilitate slipping.
Once the cable has taken its place, install the control mechanism on the transom. It is important to use new bolts and nuts if the old ones have traces of corrosion or strain of the thread. When tightening the fasteners, use the dynamometer key, observing the tightening moment specified in the manual. Outboard Motor Manual.
Connecting to the engine's thrust requires special precision. Make sure the balls of the tips enter the cups freely and are securely fixed. After connecting, check that at the extreme positions of the steering wheel, the cable does not stretch to the end and does not sag too much. The clearance should be minimal, but sufficient for free running.
⚠️ Attention: It is strictly forbidden to lubricate the inside of the cable with thick lubricants, unless it is provided by the manufacturer's instructions, as this can lead to hydraulic effect and jamming.
System setup and adjustment
After installation, you need to carefully adjust the control system. The main parameter is the force on the tiller, which should be uniform throughout the rotation amplitude. If the steering wheel is tight at the extreme positions, perhaps the cable is stretched or has inflections.
Check the friction brake if it is designed by your steering mechanism, it must securely lock the steering wheel in any position, but do not require excessive effort to unlock, and is adjusted by tightening the appropriate nut or screw on the body of the mechanism.
Be sure to check the engine on land (short-term and with water supply) by turning the rummel from the far left to the far right. The movement should be smooth, without jerks and jamming. If you notice that the motor twitches or stops at certain points, you need to look for the cause of the thrust skew or lack of lubrication.
The secret to smooth running
To achieve perfect smoothness, many professionals recommend after installation several dozen times to completely turn the steering wheel from side to side, so that the lubricant is evenly distributed inside the braid.
An important step is to check that there are no backlashes in all connections. Rock the motor with your hands when the steering wheel is locked - there should be no free moves. If the backlash is detected, tighten the connections or replace the worn bushings. The table below will help you navigate in the permissible parameters:
| Verification parameter | Normal. | Adjustment is required | Replacement required |
|---|---|---|---|
| Effort at the helm | Smooth, moderate. | Uneven | Excessive, jerky. |
| Luft in the compounds | Missing. | Up to 1 mm | More than 2 mm |
| Condition of braiding | Whole, no cracks. | Small scuffs | Blows, corrosion |
| Motor running | Complete, no restrictions. | Uppert to the limiter | It doesn't get to the point. |
Typical errors and ways to fix them
Even skilled craftsmen can make mistakes when replacing the steering cable, leading to re-repair. One of the most common problems is the cable being incorrectly laid when it passes too close to the hot parts of the engine or the sharp edges of the fiberglass, which leads to the shell being melted or rubbed.
Another common mistake is to use the wrong lubricant or excess lubricant. Excess lubrication can leak out and stain the deck, and also collect dirt that will turn into an abrasive. In addition, some beginners forget to lubricate the hinges on the most tiller-thrust motor, leaving them dry.
Ignoring the timing of the tightening of the bolts of the mechanism is a critical mistake. Too weak a puff will lead to backlashes and vibration, and too strong can damage the thread in the transom or deform the body of the mechanism. Always use the thread lock. Threadlocker medium fixation for the screws of attachment.
The quality of the steering cable installation directly affects the safety of boat control at high speeds and in storm conditions.
Services and prevention
To ensure that the new steering cable lasts as long as possible, you need to regularly carry out preventive maintenance. At least once a season, preferably before the navigation begins and after it ends, the condition of the cable and mechanism should be inspected. Visual examination allows you to detect incipient corrosion or damage to the braid at an early stage.
Periodically, especially after long parking or wintering, it is recommended to add a fresh portion of lubricant to the entry points of the cable into the mechanism, this can be done through special oils, if they are provided by the design, or by removing the protective caps. Regular maintenance extends the life of the unit two to three times.
And you also need to pay attention to the electrical condition if you have an electric starter motor that's remotely controlled, and often the cables are placed next to the steering cable, and if you replace them, you can accidentally damage the insulation of the wires, and you can carefully stow all the communications and fasten them with screeds.
How often should the steering cable be changed?
The life of the steering cable depends on the intensity of operation and storage conditions. On average, mechanical cables last 5-7 years or about 500 hours. However, if signs of wear appear, such as a tight stroke or a backlash, replacement is required immediately, regardless of the service life.
Can we restore the old cable?
The steering cable is impossible to repair and economically inefficient. The inner structure of the cable undergoes irreversible changes (stretching, metal fatigue), and no amount of lubrication will restore its original properties. Trying to save on a new part can be worth the safety.
Why is the new cable breaking?
A new cable breaks down usually due to installation errors: sharp inflections, gasket through sharp edges, lack of lubrication, or the use of a cable with insufficient safety margin for a particular motor, also the cause may be a defect of the manufacturer, but this is rare.
Do I need to remove the engine to replace it?
In most cases, complete removal of the engine is not required, it is enough to provide convenient access to the transom and the thrust of the tubercle. However, on some boats with closed cockpit or specific layout, removing the engine can greatly simplify and speed up the replacement process.
Which lubricant is best for the steering cable?
The best outboard lubricants are those labeled "Marine Grease" and have water-repellent properties, leach-resistant properties and do not destroy rubber seals. Popular brands include Mercury, Yamaha, Motul.