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Home >> Dodge and Ram >> 1987 >> Raider Standard >> Repair and Diagnosis >> Engine Performance >> System >> Air Injection System >> Adjustments >> Jet Valve Adjustment

Jet Valve Adjustment

NOTE: Misadjusted jet valve clearance will adversely affect emission levels. Adjust jet valve clearance before adjusting intake valve clearance.
  1. Before adjusting jet valve, retighten cylinder head bolts cold. See TORQUE SPECIFICATIONS  . Adjust jet valve clearance with intake valve adjusting screw fully loosened. See Figure .
  2. With engine at normal operating temperature, stop engine, remove rocker cover and position appropriate piston at TDC of compression stroke.
NOTE: Tensile strength of jet valve spring is weak. DO NOT  force screw to turn, putting excess pressure on spring.
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