How To Prevent Your Boat Engine From Overheating

Prevent Your Boat Engine From Overheating

A hot boat engine is bad news for several reasons. Firstly, if your engine is too hot it means you’re not going anywhere in a hurry. If you’re lucky, and your boat engine still works despite overheating, you’ll need to wait for it to cool down. In a more likely scenario though, an overheated boat engine will take you out of action entirely.

It doesn’t seem that uncommon though. We often hear stories of boat engines overheating on the water. That’s why we’ve put together this list of simple steps you can take to prevent your boat engine from overheating. If you take all these precautions, there’s almost no chance of overheating your boat engine.

Get your boat engine regularly serviced to iron out any kinks before they turn serious

First, let’s take a look at the bigger picture. If your boat engine is overheating, it means there’s an underlying problem. If you get your boat engine professionally serviced on a regular basis, those problems will be identified and solved. Better still, they’ll be identified and solved before they cause your engine to overheat. As well as that, regular servicing is a great way to optimise your engine’s performance and fuel consumption. With regular maintenance, boat engines can last a long time. And on the water, reliability is everything!

Flush your boat engine out with fresh water after every trip to keep corrosion away!

Maintenance doesn’t need to be expensive or extensive. A little bit of care after every trip goes a long way. And where better to start that with a fresh water flush. Flushing your engine with fresh water is the only way to ensure that rust doesn’t set in internally. Every trip in a marine environment will see your boat engine ingesting a substantial volume of saltwater. If left to sit, that water will invariably cause rust. Rust will then cause internal fittings to seize, which can be a big source of overheating issues. Keeping rust away will lessen the likelihood of your boat engine overheating, or failing in any number of alternative ways.

Lift the cowling and take a look at your boat engine every once in a while – here’s why

As with all engines, it pays to know what’s going on in your boat engine. We’ve heard some unusual stories in our time, but among the most unusual and most common is the wasps nest. Believe it or not, wasps are known to nest in boat engines that are left dormant for a while. They build muddy nests that obstruct water pumps, and block the entire cooling system of their host engine. It might sound bizarre, but something as small as that can – and has – crippled entire boat engines. Luckily, it’s an easy fix! Simply lift your cowling before each trip, and make sure there’s nothing untoward calling your boat engine home.

Preventing a two-stroke boat engine from overheating means keeping oil on hand!

Two-stroke engines require constant lubricant, just like any other boat engine. However, two-stroke boat engines get their lubricant differently to their counterparts. In a two-stroke boat engine, you need to mix engine oil with your fuel. Not only that, but you also need to mix it according to a specific ratio, which differs between models. To keep your two-stroke boat engine from overheating, make sure you’re up to speed with its ratio.

Whether two-stroke or four-stroke, all boat engines need regular oil top-ups

Of course, it’s not only two-stroke boat engines that need oil – all of them do. That’s why it’s important to pay attention to your boat engine’s oil level. Ideally, you should check it before and after each trip, to make sure it’s not using too much oil when it runs.

And of course, chat to the experts! They’ll keep you informed of what you need to do to keep your boat engine running at its best.

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