Is my Boat Over-Propped or are my Engines Over-Loaded?

Signs that your boat is over-propped or over-loaded Are you experiencing engine performance issues? Do your engines seem old and tired and not as “spunky” as they used to be? Are your engines pluming black smoke when trying to get … Read More

How to Install a Diode Isolator with an Alternator

Installation Diode battery isolators allow simultaneous charging of two or more batteries from one alternator, without connecting the batteries together. In a well-planned DC distribution system, it is always a good idea to keep the battery banks “isolated” so that … Read More

What is a Marine Transmission Trolling Valve?

Most all of the transmissions on the market transmit their power through sets of multiple disk clutches cooled and lubricated by oil. The disks are pressed together by a piston with pressurized oil providing the force necessary to create enough … Read More

Cummins Marine Engine Oil Requirements

General Information Oil technology advances due to requirements from engine technology (example: hotter combustion temperatures) or regulatory requirements (example: emissions regulations). There are multiple groups globally that provide standards for oil classifications.  Among them are the following. American Petroleum Institute (API) … Read More

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