Need to know if I have dual overhead CAM or overhead valve system

Tiny
IMAYANKFAN
  • MEMBER
  • 1997 MERCURY SABLE
  • 3.0L
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 188,000 MILES
To put on a new starter I must know if I have an overhead valve or dual overhead cam
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Sunday, March 30th, 2014 AT 1:25 PM

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Tiny
JDL
  • EXPERT
Most of these vehicles in the US, are overhead valve, vin S. Vin U is regular cam in block.

The vin number should be driver side of dash, top. Probable easier to see through windshield from the outside.

You might even look under your hood, anything say duratec or Vulcan on the engine? Vulcan should be overhead valve. US duratec should be dohc.

The dual overhead cam will have large valve covers here is what the timing chain looks like.

Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.

Cheers
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Sunday, March 30th, 2014 AT 2:24 PM

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