Operation CHARM
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Pontiac
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1987
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6000 V6-173 2.8L
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Repair and Diagnosis
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Specifications
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Mechanical Specifications
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Engine
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Cylinder Head Assembly
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Valve Seat
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Cylinder Head, Valve Guides & Valve Seats
Cylinder Head, Valve Guides & Valve Seats
Face Angle
45°
Seat Angle
46°
Seat Runout
.05°
Seat Width
Intake
1.55mm-1.85mm (.061"-.073")
Exhaust
1.70mm-2.00mm (.067"-.079")
Stem Clearance
.026mm-.068mm (.0010"-.0027)