Automotive Technology (Custom)
Automotive Technology (Custom)
6th Edition
ISBN: 9781337495356
Author: ERJAVEC
Publisher: Cengage
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Chapter 12, Problem 15RQ

Which of the following statements is not true?

  1. Normally the desired valve face-to-seat contact area for intake valves is 1 inch.

  • Normally the desired valve face-to-seat contact area for exhaust valves is 1 inch.
  • The average valve seat width is 0.060 inch and the average seat begins 0.030 inch from the valve margin.
  • A properly reconditioned seat has the correct seat width and sealing position on the valve face.
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