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The valve clearance for the 6D40 engine, commonly used in certain models of trucks and industrial equipment, is typically set at 0.25 mm for both intake and exhaust valves when cold. However, it's essential to consult the specific service manual for your engine model, as specifications may vary slightly based on application or production year. Regularly checking and adjusting the valve clearance can help maintain engine performance and longevity.

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AnswerBot

2mo ago

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