How Important is Decarbonization in a Yanmar Diesel Engine?

There’s no denying that high-performance architecture. Yanmar diesel engines really are built to satisfy the toughest, most elevated engineering criteria in the world. However, there’s no getting around one basic design tenet, the fact that diesel engines produce carbon. While it’s true that filters and catalysts, plus a great deal of design excellence, can reduce this fuel byproduct, carbon deposits will accumulate inside a diesel engine.

The Decarbonization of a Yanmar Diesel Engine

It’s not possible to take a large wire brush and scrub away the sooty deposits. Even if it were, that would be an impractical solution. Wire brushes abrade high-tolerance engine parts, so let’s call upon the aid of a technology-based solution. Gone is the terrible notion of some system-violating wire brush, and that tool is replaced by a more refined carbon ejecting mechanism. A chemical “decarb” can be injected through the engine air inlet, where it’ll break down the black film and restore the engine to its peak performing former condition. Before taking this route, though, let’s see how this pitchy deposit can affect (infect?) a Yanmar Diesel Engine.

Regarding Yanmar-Tuned Performance Hits

Run at a low temperature, a carbon film begins to accumulate. Or perhaps the grade of fuel, filled from some dubious marine fuel source, is so poorly formulated it discharges sooty grains. Whatever the reason, a finely tuned Yanmar Diesel Engine is suffering from a growing number of performance hits. The carbon forms a gritty discharge, which scars the cylinders. The inside surfaces of those cylinders glaze and darken. Fuel economy figures suffer next, then the lifespan of what should be a long-lasting component shortens drastically. The head piston is the last to fail. It blows, the engine comes to a sputtering halt, and the boat is stuck until a tow can be arranged. Only, just like any other maintenance routine, all of that could have been avoided just by carrying out a few cylinder and seal preserving checks.

That’s the real takeaway from this situation, that fact that it could have been avoided. Run a boat engine to see if there’s smoke coming from the engine outlets. If this telltale sign is present, take immediate action. Just because it’s a tough-as-nails Yanmar mechanism, that doesn’t mean it’ll withstand this mistreatment for long. In point of fact, tightly engineered engine clearances are vulnerable to carbon-grained scarring effects. Take the engine out of service, clear that smoke, and treat it with a chemical decarbonization agent. As for low temperature or RPM issues, run a Yanmar Diesel Engine within its design specs. To do otherwise is to invite that sooty film.

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