After Resurfacing a Valve Seat at 45 Degrees, the Seat

question 46

Multiple Choice

After resurfacing a valve seat at 45 degrees, the seat is too wide and the contact pattern extends all the way up to the valve margin. What should be done to bring the seat width into specifications?

• A)Make a 30-degree topping cut
• B)Make a 45-degree seat cut
• C)Make a 60-degree throat cut
• D)Replace the valve

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