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1992 Chevy Lumina cams

Tiny
2CP-ARCHIVES
  • MEMBER
  • 1992 CHEVROLET LUMINA
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 104,000 MILES
1992 Chevy Lumina Z34 3.4, mileage: 104,000. My repair manual it says to put the cam "flats" UP. My question, the cams and cam gears are round, what are they referring to when they say "flats"?
Tuesday, January 18th, 2011 AT 6:21 PM

1 Reply

Tiny
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  • 4,542 POSTS
We think the cam "flats" they are referring to are the flat ramps that lead up to the cam lobes. When number one cylinder is in firing position the intake and exhaust cam lobes ramps are both up not down opening the valves.
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Tuesday, January 18th, 2011 AT 6:42 PM

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