If you own a boat, you know how important it is to keep the engine in good working order. A breakdown can leave you stranded in the middle of nowhere, and that's never fun. If you want to make sure your boat's engine is running well, there are several signs that can indicate when you need marine diesel services or a diesel diagnostic test. Here are four signs to look for:

1. Your Boat Isn't Starting

If your boat won't start up, it could be because the fuel tank is empty or because there's something wrong with the fuel system itself. This could include clogged filters or dirty injectors. When this happens, you should call a professional marine mechanic who can perform a diesel diagnostic test on your boat's engine to find out what needs attention first.

2. Your Boat Runs Roughly Or Starts Sputtering

If your boat runs roughly or starts sputtering during operation, this may mean that there is too much carbon buildup in the engine itself — which means dirt and grime have been building up inside of it over time with no way to escape through proper maintenance practices (such as replacing spark plugs). 

3. Black Smoke Is Coming Out Of The Exhaust Pipe

If you notice that there is black smoke coming out of your exhaust pipe, this could mean that there is too much carbon buildup inside of it over time with no way to escape through proper maintenance practices (such as replacing spark plugs). Diesel diagnostics are often the best way to determine what is causing your boat engine problems. A professional marine mechanic will be able to run a series of tests on your boat's engine, including compression and vacuum tests.

4. There Is A Loss Of Power When You Press The Throttle Down

If you notice that there is a loss of power when you press the throttle down, this could mean that there is air in your fuel system. This can happen if you don't tighten your fuel line properly or if it's leaking somewhere along its path from the tank to the engine.

The engine is the heart of your boat, and if it's not working properly, you can't enjoy the time on the water. Fortunately, there are a few signs that indicate your marine diesel engine needs servicing or diagnostics. If you notice any of the above signs, chat with a professional about marine diesel services and diesel diagnostics today.