Different Marine Engine Tests
Various tests can look for specific problems, helping you solve challenges with your marine power supply sooner so you can get back on the water sooner. Blanchard Energy offers numerous marine power supply testing options to get to the root of the problem so we can make precise, efficient repairs that leave you less vulnerable to compound damage. Below are some of the different marine generator testing options we offer:
Visual inspections are often where marine engine surveys begin. A professional will visually inspect the engine and associated equipment, including the hoses, engine mounts and clamps. An experienced technician may also look at the serial numbers of your equipment and analyze its performance compared to the manufacturer’s required specifications. Other components, parts or systems inspected during this step include:
- Electrical systems
- Exhaust systems
- Cooling systems
A technician may also check the arrangement of your exhaust system to ensure the cables are working correctly, that mounts aren’t overextended and that they’re tight enough for the specifications of your engine.
The next step in marine engine testing is the compression test, which is when the engine is started, and all injectors are removed, which measures the compression capabilities of each cylinder. The engine’s electronic controls are also tested, as well as the management computer, which measures:
- Exhaust temperatures
- Belt tension
- Starter amp draw
- Alternator output
- Charging system cables
Wide Open Throttle (WOT) Test
The WOT test helps identify several performance parameters, which helps determine if the engine and propeller are matched correctly. This test will also determine if the engine can produce the maximum rotations per minute (RPMs) for an extended period without encountering problems, including vibrating, overheating, smoking or unusual fuel consumption.
Sea trials are tests carried out at sea that help measures a vessel’s efficiency, capabilities and quality. Some of the sea trials tests include:
- Draft measurements: Drafts help regulate a vessel’s hydrodynamic and hydrostatic capabilities. This test helps determine whether a vessel is floating at the required draft, which is corrected depending on the test results.
- Anchor tests: Anchors are essential for keeping a vessel stationary when needed, so anchor tests help ensure the anchor functions appropriately.
- Steering gear tests: Malfunctioning steering gear can cause problems with maneuverability. Steering gear tests help ensure that a ship’s steering is performing properly so ships can change direction as needed without risk of malfunction.
- Main engine endurance tests: The engine propels a ship in the right direction. The endurance test ensures it’s operating correctly and nothing goes wrong while out on open water. The test runs for six hours at the maximum RPMs to test how it performs with a full load.
- Speed trials: This test helps check the speed of a vessel at the required draft to reduce the risk of penalties from improper speed measurements.
- Crash stop tests: These tests help measure the ability of a ship to stop when moving at full speed, ensuring it can stop in an emergency to prevent a potential crash.
- Turning circle tests: This test measures a vessel’s capability of traveling in a circular path when the rudder is put hard to one side. The test completes a full circle with the vessel, and the diameter is measured.
- Navigation equipment testing: Sea trials also test the navigation equipment onboard a vessel to ensure it’s working and calibrated properly, which includes communication systems and radar.
- Blackout tests: This test starts with a total blackout of the ship to test all the main generators, ensuring they begin within an appropriate timeframe to keep the vessel operational.
Fuel and Oil Analysis
This testing draws samples from various locations, including engine oil, transmission fluid, coolant and crankcase oil, sending it for laboratory analysis. This test can help identify multiple issues that may be causing malfunctions on your vessel.