Intake manifold torque specs 2000 olds 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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-Always follow its repair manual. A good mechanic always follow
its repair manual. (Not from the memory)


Good luck


Mai

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

start in the middle and alternate left to right and the torque on a alloy manifold will be around 14lbs or a nip with a 3/8th drive rachet ,any water passages use contact adhesive around the water ports .

on the 2.5 4 cylinder

step 1 18 ft lbs.

step 2 26 ft lbs. except bolt #9 re tighten it to 18 ft. lbs.

step 3 all bolts an additional 90 degrees.

intake manifold bolts 65 ft lbs.

on the 3.3L V6

step 1 35 ft lbs.

step 2 tighten all bolts an additional 130 degrees

step 3 tighten center 4 bolts an additional 30 degrees

intake manifold bolts 88 in. lbs.

(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!

Intake manifold using new gaskets. Torque the bolts, in sequence, to 105 inch lbs. (12 Nm)...



Fig. Intake manifold torque sequence-3.7 & 4.7L engines


Hope this help (remember comment and rated this).

On 5.7L engines, install the bolts and torque in sequence as follows:

1. Step 1: 71 inch lbs. (8 Nm).
2. Step 2: 106 inch lbs. (12 Nm).
3. Step 3: 11 ft. lbs. (15 Nm).