The gasket surface of a cylinder head, as measured with a straightedge, should have a maximum variation of which of
A) 0.001 inch in any 6-inch length or 0.004 inch overall
B) 0.004 inch in any 10-inch length or 0.008 inch overall
C) 0.020 inch in any 10-inch length or 0.020 inch overall
D) 0.002 inch in any 6-inch length or 0.004 inch overall
Question 2
A warped aluminum cylinder head can be restored to useful service by ________.
A) Heating in an oven at 500F with shims under each end, allowing it to cool, and then machining it
B) Grinding the gasket surface and then align honing the camshaft bore
C) Heating it to 500F for 5 hours and cooling it rapidly before final machining
D) Machining the gasket surface to one-half of the warped amount and then heating the head in an oven and allowing it to cool slowly
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