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Loose valve seats

Tiny
ERIK DANIELSEN
  • MEMBER
  • 2000 DODGE DAKOTA
  • 4.7L
  • V8
  • 4WD
  • AUTOMATIC
  • 160,000 MILES
I dropped a valve seat on the passenger side cylinder bank. My timing was still on so I know I did not bend a valve. After pulling the head I re installed the loose valve seat and lapped the intake valve so it sealed properly. What are the chances that the valve seat will come loose again in the future? Should I buy a rebuilt head or is it worth an attempt to drive it.
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Saturday, February 9th, 2019 AT 11:09 AM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good afternoon,

Did you press it in or have a machine shop check it? If it came loose, it came loose for a reason, too much heat.

A common issue for this engine.

To be honest, if t happened to one it will happen to more.

I would be proactive and replace both heads.

Roy
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Saturday, February 9th, 2019 AT 11:48 AM

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