Diesel Engine Troubleshooting

White Smoke

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White smoke: Uncombusted fuel that has been vaporized and then discharged.

• White smoke is generated when combustion occurs at a relatively low temperature, resulting in the exhaust of uncombusted fuel and oil particles. White smoke is most likely to be generated when combustion chamber temperature
is low.

Source of White Smoke

1 Late Injection, Timing Fuel is injected when the piston is in the down stroke.
2 Cold Engine, Ignition occurs late and combustion is prolonged.
3 Poor Fuel Combustibility
4 Rise and Fall of Oil Pressure, Oil undergoes partial thermal breakdown.

Written by Jack

March 12th, 2019 at 3:34 am

Posted in DENSO CRS Repair

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