Torque specs intake manifold 2000 oldsmobile silhoutte 3.4

The 2014 Chevy Spark intake manifold torque sequence and torque specs depend on the engine type. Here are the torque specs and sequence for each engine type:
1.0L Engine:

• Step 1: Tighten the bolts to 44 inch-pounds (5 Nm).
• Step 2: Tighten the bolts to 89 inch-pounds (10 Nm).
• Step 3: Tighten the bolts to 18 lb-ft (25 Nm).

Torque sequence: 8 4 1 5 9 7 3 2 6 10
1.2L Engine:

• Step 1: Tighten the bolts to 44 inch-pounds (5 Nm).
• Step 2: Tighten the bolts to 89 inch-pounds (10 Nm).
• Step 3: Tighten the bolts to 18 lb-ft (25 Nm).

Torque sequence: 8 4 1 5 9 7 3 2 6 10
It's important to follow the torque sequence and torque specs carefully to ensure that the intake manifold is properly secured and sealed. Over-tightening or under-tightening the bolts can cause leaks or damage to the engine.

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Follow the link for a complete listing of this engines bolt torque specs. Torque Specs Database

Check this Caddy link for torque specs.
intake manifold torque sequence 10 bolt

The torque specification is a 2-step process;

Tighten the vertical lower intake manifold bolts (the four middle ones) to 7 Nm (62 lb in). Tighten the diagonal lower intake manifold bolts (two on each end) to7 Nm (62 lb in). Tighten the vertical lower intake manifold bolts (the four middle ones) to 13 Nm (115 lb in). Tighten the diagonal lower intake manifold bolts (two on each end) to 25 Nm (18 lb ft).

Lower Intake Manifold


15 Nm (11 ft. lbs
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Upper Intake Manifold


10 Nm (89 in. lbs)
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(step 1 ) the torque specs for the heads are---1998 through 2001 are 37 foot lbs. ( step 2) rotate an additional 90-degrees (1/4 turn). intake manifold bolts ( lower ) step 1-- 62 in-lbs, step 2--115 in-lbs. intake manifold bolts/studs ( upper ) 18 ft-lbs. this is for the 3.1 v-6, have a good day!

When torqueing bolts on manifolds or heads you always start in the middle or center and torque in a circle motion and olny torque 1 bolt at a time. Start with a low toque and increase torque up 5 to 10ft lbs / or newtons each time until torque spec is reached.

1976 OLDSMOBILE TORQUE SPECS
455 CI cylinder head torque 85 ft/lbs
455 CI intake manifold torque 40 ft/lb

Hope this helps