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Tag: diesel engine

How Old Is Your Marine Diesel Engine, Really?

It’s easy to hear promises of marine diesel engines lasting 8,000 hours and believe they will hold up against any environment or weather any storm. Yet, like with any engine, longevity depends heavily on how well you maintain the equipment. You can take care of all an engine’s standard needs and still lose it in a few hundred hours thanks to one simple factor — water corrosion.

More forces are working on your marine engine than regular wear over time. Without the proper care and due diligence, your marine engine could face a premature retirement and force you to invest in a complete overhaul. If you work with boats regularly, you need to understand how to determine the true age of a marine diesel engine.

What Time and Water Can Do to Your Engine

Boats typically spend a huge amount of time out on the water. They’re exposed to harsh conditions, as well as the corrosive influences of water and other substances that may be in it. The most dangerous component that diesel engines must often endure is saltwater, and even the more efficient, rugged designs can quickly suffer damages from it.

Engines that should last for years have been known to cost unprepared owners major repair expenses after just a few hundred hours due to seawater damage. While old marine engines require repairs and maintenance over the years, you’re probably less keen on taking responsibility for these costs over such a short period.

The reality is that the maximum age of a marine diesel engine versus its true lifespan is often different. The question, “How old is my marine diesel engine?” is a challenging one to answer, as a simple contrast in maintenance quality can have a big effect on performance and durability.

How Can You Protect Your Used Marine Diesel Engine?

A lack of proper maintenance can age any marine engine fast, especially if you operate in saltwater environments. Aside from the standard maintenance tactics such as cleaning, oil changes and filter changes, it’s important to consider the potential consequences of corrosion as well.

There are a variety of corrosion prevention solutions available that can help minimize seawater damage to engines and fuel systems. Reduce some of the risks by working with an experienced mechanic or having regular inspections to ensure the continued quality and productivity of all the system components. As you need to replace or repair mechanisms, you can make the necessary adjustments before suffering a major engine or system failure.

With the help of an educated service provider and a commitment to providing your boat with the care it needs, you can reduce the age of your marine diesel engine and keep it in excellent shape for many more years. Contact Hubei July to learn more or shop for marine engine parts today.

3 Common Diesel Engine Myths Debunked

At July Cummins, we love to see everyone get the most out of their maritime activities. If you’re a boater, you may have certain beliefs about your diesel engine that are false or misunderstood and that may actually be harmful. Here are three common marine diesel engine myths along with the reality on each topic.

1. I Can Let My Diesel Engine Idle as Long as I Want

Do you let your diesel engine idle or turn off the engine whenever possible? Diesel engine idle myths are some of the most pervasive ones out there, likely because the idea that it’s okay and sometimes even desirable to leave your engine idling nearly indefinitely is somewhat rooted in truth.

The true part is that in contrast to gasoline engines, diesel engine throttles do not block the amount of air they take in, which allows them to burn much less fuel when they idle than gasoline engines.

However, even though you’re not burning fuel, excessive idling is not good for your engine or the environment. Much of the fuel you do expel when idling does not combust, which creates greater pollution. You’re also still running the engine, which can lead to faster engine wear, especially if some of that non-combusted fuel gets into your oil.

2. Marine Engine Wear Is Highest at Higher RPM

Marine engines are tough, and with the right parts, they should last a long time. That said, it’s understandable if you want to put as little wear on them as possible. It’s important to understand where the most engine wear happens.

It’s counter-intuitive, but often the most wear typically takes place not at high RPMs but when you’re starting the engine up. Why? Because your lubricating oil is cold and hasn’t had a chance to flow through the system yet. There will be residual oil on your components at startup, but not as much as when your engine is in regular operation.

If you have a commercial diesel engine with a block heater and/or pump to circulate the oil before the engine starts, you should not have this problem. If you don’t, you’ll want to give the engine a minute to get warm before advancing the throttles.

3. I Should Never Put Synthetic Oil in a Diesel Engine

It’s a common belief that putting synthetic oil into a diesel engine can cause leaks and other problems. In fact, some people believe that it’s not even safe to switch brands of oil when lubricating a diesel engine. These assertions are all myths. As long as your lubricating oil meets the OEM requirements, you’re free to switch brands and use synthetic oil as you see fit.