Question about 2003 Buick Century
Upper intake manifold bolt torque and sequence
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Posted on Jan 02, 2017
Exhuast manifold torque 38 foot pounds, Head bolts are 38 Foot pounds after you add sealant to the bolts then after torque go another 130 degrees. Tighten center 4 bolts in sequence another 30 degrees.
Posted on Nov 26, 2009
SOURCE: What are the torque specs
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Fig. Intake manifold bolt torque sequence 2.7L engine
Upper intake manifold with a new gasket on the lower intake manifold and torque the bolts, in sequence, to: 105 inch lbs. (12 Nm)
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