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2500 series: 5.7 liter whats..proceedure to adjust the valves..vortec…

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Yes on a 1997 chevy...
Yes on a 1997 chevy 2500 series two wheel drive 5.7 liter whats the proceedure to adjust the valves. It is a vortec engine
Submitted: 8 years ago.Category: Chevy
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Answered in 21 minutes by:
6/27/2010
Chevy Mechanic: Randall C, ASE Master Tech replied 8 years ago
Randall C
Randall C, ASE Master Tech
Category: Chevy
Satisfied Customers: 13,440
Experience: ASE Master, L1, 32 years, Diagnostic / Electrical Specialist
Verified
hello, procedure noted below


VALVE LASH ADJUSTMENT



  1. Remove the valve rocker arm cover.
  2. Crank the engine until the mark on the crankshaft balancer lines up with the timing mark on the front cover and the engine- is in the number one firing position. This may be determined by placing fingers on the number one valve as the mark on the balancer comes near the timing mark on the front cover. The valve rocker arms are not moving, the engine is in the number one firing position. If the valve rocker arms move as the mark comes up to the timing mark, the engine is in the number six firing position. Rotate the crankshaft 360 or one complete revolution in order to reach the number one position.
  3. With the engine in the number one firing position as determined above, adjust the following valves (Even numbered cylinders are in the right bank. Odd numbered cylinders are in the left bank):
    • Exhaust: 1, 3, 4, 8
    • Intake: 1, 2, 5, 7
  1. Back out the adjusting nut until lash is felt at the pushrod then turn in-the adjusting nut until all lash is removed. This can be determined by rotating the pushrod while turning the adjusting nut. When the play has been removed, turn the adjusting nut 360 or one full additional turn in order to center the valve lifter plunger.
  2. Crank the engine one revolution until the timing mark on the front cover and the crankshaft balancer mark are again in alignment. This is the number six firing position. The following valves may be adjusted:
    • Exhaust: 2, 5, 6, 7
    • Intake: 3, 4, 6, 8
  1. Install the valve rocker arm cover.

 

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