While inspecting diesel engine combustion space components, which components would you consider for particular scrutiny for evidences of high temperature corrosion?

Correct Answer: Option B — Exhaust valves, exhaust valve seats, piston crowns, cylinder heads and upper circumference of cylinder liners.

High-temperature marine diesel combustion exposes thermal boundaries to severe vanadium and sulfur corrosion, combined with high mechanical stresses. Exhaust valves, valve seats, piston crowns, cylinder heads, and the upper cylinder liner circumference require rigorous scrutiny for thermal fatigue, burning, and grooving.