Which of the following statements is LEAST-Likely true?

A. Servicing valve guides before seat refinishing will result in an off-center valve seat that must be reground or cut.
B. Exhaust seats are wider than intake seats because valve cooling is critical.
C. A valve that is off-center will leak, causing the engine to idle rough when cold.
D. Valve guides must be refinished before attempting to refinish valve seats.


Answer: A

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