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In my 86-96 aerostar repair manual it says to use new bolts , tighten the bolts over a 3 step sequence to the torque required. Here is the sequence

5 1 3 7

6 4 2 8

Torque specs

Step 1 44lbs step 2 tighten intake mainifold to 36 -72 in lbs step 3 59lbs step 4 tighten intake manifold to 72 to 132lbs in-lbs step 5 turn cylinder head bolts an additional 80 to 85 degrees

step 5 complet intake mailfold torque steps 3 and 4

i copied it word for word

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8y ago
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15y ago

Torque in 3 steps [1st (22ft-lbs), 2nd (51-55ft-lbs), 3rd (Turn 90 degrees)]

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9y ago

The head bolt torque specification for a 3.3 liter engine is dependent upon the manufacturer of the engine. In general, the 3.3 liter engine had bolt torque specifications is 120 pounds.

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