1993 Nissan Maxima Hi M Replacing Head Gasket Mechanic Book That Replace

1993 NISSAN MAXIMA
183,000 MILES
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ANONYMOUS
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Hi, I'm replacing the head gasket of a 1993 Nissan Maxima and the mechanic book says that I have to replace the head bolts. I was wondering if it's really necessary or not. Thank you for the eventually answer.
Feb 3, 2013 at 6:15 PM
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CARADIODOC
  • ✓Experienced Mechanic
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Yes. Many engines use "torque-to-yield" bolts that are a one-time-use bolt. They physically stretch when installed to help hold the cylinder head clamped tightly in place. Used head bolts will not hold sufficient tension on the head.
Feb 3, 2013 at 6:20 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,992 POSTS
Good practice but not necessary-unless its stretched-
Feb 3, 2013 at 6:23 PM
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