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Automotive Torque Specifications

 Home Chevrolet GMC Chevrolet S-10 & GMC S-15 1982-93

 Chevrolet S-10 and GMC S-15 1982-93

Engines

2.8L

Component

Torque

Camshaft Sprocket-to-Camshaft Bolts 17 ft. lbs.
Camshaft Thrust Plate-to-Engine Bolts 105 inch lbs.
Crankshaft Damper Bolt 1982-85 48-55 ft. lbs.
1986-93 70 ft. lbs.
Cylinder Head Bolts (Fig. 1) 40 ft. lbs. *
Engine Mount-to-Engine Bolts 35 ft. lbs.
Engine Mount-to-Frame Bolts 52 ft. lbs.
Engine Mount Through Bolts 61 ft. lbs.
Nuts 52 ft. lbs.
Exhaust Manifold Bolts 25 ft. lbs.
Flywheel Bolts 1982-85 45-59 ft. lbs.
1986-93 52 ft. lbs.
Intake Manifold Bolts (Fig. 3) 23 ft. lbs. **
Knock Sensor 14 ft. lbs.
Main Bearing Cap Bolts (In three steps) 70 ft. lbs.
Oil Pan 1982-92 Two Rear Bolts 18 ft. lbs.
All Other Bolts, Studs and Nuts 7 ft. lbs.
1993 (All) 18 ft. lbs.
Oil Pump Bolts 30 ft. lbs.
Oxygen Sensor 30 ft. lbs.
Rocker Arm Cover 72 inch lbs.
Rod Bearing Nuts 39 ft. lbs.
Starter Bolts 30-33 ft. lbs.
Thermostat Outlet-to-Engine Bolts 21 ft. lbs.
Throttle Body-to-Intake Manifold Bolts (Model 220 TBI) 18 ft. lbs.
Water Pump-to-Engine Bolts 1982-92 22 ft. lbs.
1993 (Fig. 3) All (Except middle 3 lower Bolts) 15 ft. lbs.
Middle 3 Lower Bolts 89 inch lbs.
** Torque head bolts to 40 ft. lbs. then tighten them an additional 1/4 turn
** Apply sealant to bolts #1 and #2 in the torque sequence

Fig. 1 Cylinder head bolt torque sequence-2.8L

Fig. 2 Intake manifold torque sequence-2.8L

Fig. 3 Water pump mounting-2.8L

Fig.4 Timing mark alignment-2.8L

 

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