![]() ![]() It could be a dead battery that no longer holds the charge, it will need to be replaced immediately. You have to understand why the battery voltage drops after starting the sailboat inboard engine. A voltmeter is enough to keep its state of charge under control, at rest with the engine off it should be around 12.6V.Ī voltage below 12.2V is already a symptom of some problem with your system. A split charger or other similar solution should prevent you from accidentally discharging it. The starter battery should be completely separated from the services electrical system. ![]() Modern sailboat inboard engines cannot be started by hand so finding yourself with a discharged engine battery is equivalent to finding yourself without an engine. Flat batteries, problems with the electrical system that powers the starter motor or problems with the starter motor. When you turn the ignition key (or push the button) I would say there are three common problems. Sailboat Inboard Engine Common inboard sailboat engine problems During the winter it remains stationary for many consecutive months which can be damaging if we don’t adopt the necessary precautions. In addition, we use the car every day, the sailboat inboard engine is turned once in a while. The marine environment, however, is hostile to everything mechanical or electrical. In reality these are not complex engines, on the contrary, they are infinitely simpler than those of a car. Many owners treat the marine inboard engines as the engine of a car, confident that it is enough to turn the key. Distracted owners however discover that there are so many things that can go wrong. This, despite the fact that marine diesel engines are quite simple in both construction and maintenance. Interestingly, most calls to the coast guard are related to inboard engine problems. Here we will talk about the typical 15-40 horsepower marine diesel engine of boats between 8 and 16 meters. For other boats, the installations and types of engines are so varied that it cannot be easily summarised here. In this article we will talk only about some of the more common problems you might face with an inboard sailboat engine. Alternatively, read a book that deals with the subject. Refer to the many resources available online, a short google search will bring up many results. ![]() Therefore buyers have an important decision about which motor to purchase and use on their boat!Īre you looking to purchase an inboard engine for your boat? You are sure to find the ideal new or used inboard motor on Boats24.To fully understand the operation of the inboard engine of a sailboat, you need to study at least the basic principles. On the other hand, inboard motors take up considerably more space, and a replacement or repairs can be only made when on land. They are typically not as compact and complex as their external counterparts, therefore the technology is simpler and the spare parts are cheaper. Inboard motors have their distinct advantages. Most advanced inboard engines are fitted at the stern because of the complexity and weight.Īdvantages & Disadvantages of an Inboard Engine In addition, some of the inboard engines on may be V-Drive, a fitted propulsion system that consists of two drive shafts, a gearbox and a propeller. It is widely disputed that Azimuth thrusters give ships and boats better manoeuvrability. These pods can be rotated to any angle on a rotatable gondola, making a rudder unnecessary. ![]() Maybe you are browsing for a different drive system? The Azimuth thruster is a configuration of propellers placed in pods at the bottom of the boat. There are also Z-Drive engines that are, on the contrary, fixed at the stern of the vessel. More than often, a fixed drive shaft is applied, usually when the engine is fixed directly in the centre of the boat. There are many different ways in which the boat can be operated using an inboarder, which are mainly found on motor yachts. When an inboarder is fitted, it also requires a hole to be made through the back wall of the boat's structure so that the drive shaft can be fitted, this gives the boat access to the water, allowing propulsion to take place. It must be noted that inboard engines can also be considered outboard motors under certain circumstances. The opposite of an inboard engine is the outboard engine, also known as an “outboarder”, designed to be compact and occasionally portable. Inboard Boat EnginesA boat's engine is considered an inboard motor or “inboarder”, if the engine itself is integrated into the boat's structure. ![]()
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