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What does the term 'engine slobber' mean in reference to a diesel engine?

April 26, 2017diesel engine mean Reference term

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What does the term 'engine slobber' mean in reference to a diesel engine?

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Diesel generators are designed to operate with a load. When a generator operates considerably below the rated output level, the engine can start to over fuel. Ideally, diesel generators should run at around 65-80% of their maximum rated load. When a generator operates for prolonged periods below 40% of the rated output, it begins to over fuel, the injection tips begin to carbonize and disrupt the fuel spray pattern. This poor combustion leads to soot formation and un-burnt fuel residue which clogs and gums piston rings. This causes a further drop in sealing efficiency and exacerbates the initial low pressure. This problem can be avoided by ensuring that your generator is correctly sized. If your generator is run up regularly simply to test its operation, it should be placed on load and not run off load.