Archive for the ‘Marine Engines’ Category


How to diagnose a “No-Start” Condition on a Mercruiser 3.0L Marine Engine

Question: My Mercruiser 3.0L Marine Engine will crank over but won’t start. Is there an easy place to start when trying to diagnose this problem? Answer: There are 3 basic fundamentals with the operation of an internal combustion engine Spark Fuel Timing As illustrated in the short video below it is very easy to verify […]

How Do I Determine the Rotation of My Boat’s Engine?

**Performance Product Technologies Marine Engines Parts Technical Specifications Library is loaded with Technical Articles and Videos Question: What is the best way to determine the rotation of Marine Engines? My engine is currently not running and out of the boat so I really don’t have any way to run the engine to determine this. Answer: […]

Short Block versus Long Block Engines for Boats

Topic: Replacement Options Question: Why is it so difficult to find a remanufactured marine shortblock? I see plenty of new and remanufactured longblocks but not any shortblocks. Response: There are a variety of options to be considered when replacing the engine in marine applications. Depending on the severity of the issue that’s driving your need to replace the […]

Volvo Penta Marine Engine Ignition Timing

This video provides step by step instructions detailing the process for setting the base ignition timing on Volvo Penta 4.3L GL model carbureted marine engines equipped with the Delco distributor and ignition module.   Shop the Store for……………..Volvo Penta Parts

Mercruiser Block ID Codes – Big Block V8

The specific model/vintage of Big Block V8 Mercruiser Engine can be determined by looking at the last letters of the engine code which is stamped by General Motors at the time of assembly on all complete Marine Longblocks. If the serial number and/or model decals are missing, the Engine code will help to determine the engine model. Refer to the drawing […]

Posted in Marine Engines

Mercruiser Block ID Codes – Small Block V8

  The specific model/vintage of Mercruiser Marine Engines can be determined by looking at the last letters of the engine code which is stamped in all complete Marine Longblocks by General Motors at the time of assembly. If the serial number and/or model decals are missing, the Marine Engine code will help to determine the engine model. […]

Posted in Marine Engines

Mercruiser Block ID Codes – 6 Cylinder Engines

The model of Mercruiser Engine can be determined by looking at the last letters of the engine code which is stamped in all complete Marine Longblocks by General Motors at the time of assembly. If the serial number and/or model decals are missing, the Marine Engine code will help to determine the specific engine model/vintage. […]

Mercruiser Block ID Codes – 4 Cylinder Engine

The model of Mercruiser 3.0L 4 Cylinder Engine can be determined by looking at the last letters of the engine code which is stamped in all complete Marine Longblocks by General Motors at the time of assembly. If the serial number and/or model decals are missing the marine engine code will help to determine the […]

Oil Pump Priming Instructions

IMPORTANT: Remanufactured Marine Longblock Engines are temporarily fit with electrical systems, fresh water cooling systems, and premium fuel to perform a series of “Hot-Test” validations for quality control purposes. Thereafter, the engine oil drains back into the pan and loses its lubrication value from the valve-train and cylinder walls. Mercruiser REQUIRES the installer to perform an […]



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