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Thefted from the site: Diesel Smoke tells YOU a Story…

"White smoke occurs when raw diesel comes through the exhaust completely intact and unburned. Some causes of this include…
Faulty or damaged injectors

Incorrect injection timing (could be a worn timing gear or damaged crankshaft keyway).

Low cylinder compression (eg caused by leaking or broken valves, piston ring sticking, cylinder and/or ring wear, or cylinder glaze)"
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