Marine Surveys

Monmouth Marine Engines, Inc. offers comprehensive marine diesel and gas engine survey services as well as generators survey services to assist you in making an informed purchasing decision.

Our surveys include:

Our comprehensive marine engine surveys begin with an initial visual inspection of the vessels machinery space to evaluate the engines and mechanical systems for adherence to ABYC and manufacturers specifications.

Check the engine RPM, pressures and temperatures while operating the vessel under cruise RPM
conditions and full (WOT) load.
Generator operation checked under full load.
Compare performance to the specifications required by the manufacturer.

We measure:

  • Engine room temperature
  • Engine vacuum (depression)
  • Engine parameters
    • Temperature
    • Boost pressure
    • Exhaust temperature
    • Oil pressure(s): engine and transmission
    • Alternator output: amperage and voltage

Infrared thermal imaging is performed during the sea trial to detect and evaluate any temperature

For electronically controlled engines, diagnostic equipment is connected to not only check and record any diagnostic codes (active and historical) but also measure and record engine operational parameters.
A WOT test will reveal several performance parameters and will make sure the propeller and engine are properly matched. It will also confirm whether or not the engine is capable of producing maximum RPMs for an extended period of time without experiencing problems such as overheating, smoking, vibrating or abnormal fuel consumption.
Samples of engine crankcase oil and transmission (gear) fluid are taken for laboratory analysis. Additionally, as required, coolant and fuel samples are taken for laboratory analysis.
At the conclusion of our marine engine survey we will provide you with a comprehensive written report encompassing a list of deficiencies and recommendations, diagnostic reports and fluid analysis results with interpretation and support documentation including engine technical data and operators manuals.