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Home >> Buick >> 1997 >> Park Avenue Ultra >> Repair and Diagnosis >> Engine Mechanical >> Engine Mechanical - 3.8L V6 - VINS [K,1] >> Torque Specifications

Torque Specifications

NOTE: Check for any applicable Technical Service Bulletins (TSB) that may apply.
TORQUE SPECIFICATIONS

Application Ft. Lbs. (N.m)
Balance Shaft Gear Bolt (1)
Step 1 16 (22)
Step 2 Additional 70 Degrees
Balance Shaft Retainer Bolt 22 (30)
Camshaft Sprocket Bolt
Step 1 74 (100)
Step 2 Additional 90 Degrees
Connecting Rod Bolt
Step 1 20 (27)
Step 2 Additional 50 Degrees
Crankshaft Pulley/Balancer Bolt
Step 1 110 (150)
Step 2 Additional 76 Degrees
Cylinder Head Bolts (2)
Step 1 37 (50)
Step 2 Additional 130 Degrees
Step 3 (4 Center Bolts) Additional 30 Degrees
Drive Bolt Tensioner Bracket Bolt (VIN 1) 37 (50)
EGR Valve Adaptor Nut 37 (50)
Exhaust Manifold Bolt 22 (30)
Flywheel Bolt
Step 1 11 (15)
Step 2 Additional 50 Degrees
Front Cover Bolt
Step 1 (3) 11 (15)
Step 2 Additional 30 Degrees
Fuel Feed & Return Line Fitting 22 (30)
Intake Manifold Bolts
VIN 1
Lower (1)(4) 11 (15)
Upper (Supercharger) 17 (23)
VIN K (All Except "F" Body)
Lower (1)(4) 11 (15)
Upper (5)
VIN K ("F" Body)
Lower (1)(6) 11 (15)
Upper (7)
Knock Sensor 14 (19)
Main Bearing Cap Bolt (8)
Step 1 30 (40)
Step 2 Additional 110 Degrees
Oil Cooler Adapter Connector 37 (50)
Oil Filter Adapter-To-Front Cover Bolt 22 (30)
Oil Pan Bolt (1) 10 (14)
Oil Screen-To-Block Bolt 11 (15)
Rocker Arm Bolt (1)
Step 1 11 (15)
Step 2 Additional 90 Degrees
Side Main Bearing Cap Bolt
Step 1 11 (15)
Step 2 Additional 45 Degrees
Supercharger-To-Lower Intake Manifold Bolt (VIN 1) 17 (23)
Thermostat Housing Bolts 15 (20)
Timing Chain Damper Bolt (Special Bolt) 16 (22)
Torque Axis Engine Mount Bracket Front Nuts 52 (70)
Torque Axis Engine Mount Bracket Rear Nut 22 (30)
Valve Lifter Guide Bolt 22 (30)
Water Pump Bolts
Long Bolts
Step 1 15 (20)
Step 2 Additional 40 Degrees
Short Bolts
Step 1 11 (15)
Step 2 Additional 80 Degrees
INCH Lbs. (N.m) 
Oil Pump Cover Bolt 97 (11)
Rocker Arm Cover Bolt (1) 88 (10)
Throttle Body Nut 89 (10)
(1) Apply thread locking compound to bolt(s).
(2) Tighten bolts in sequence. See Figure.
(3) Apply thread sealant to bolt(s).
(4) Tighten bolts in sequence. See Figure.
(5) Tighten bolts in sequence to 89 INCH lbs. (10 N.m). See Figure.
(6) Tighten bolts in sequence. See Figure.
(7) Tighten the vertical bolts in sequence to 11 ft. lbs. (15 N.m). Tighten the water outlet bolts in sequence to 20 ft. lbs. (27 N.m). Tighten the side bolts in sequence to 22 ft. lbs. (30 N.m). See Figure.
(8) Refer to tightening procedure. See CRANKSHAFT & MAIN BEARINGS .