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Geo Storm, Isuzu Impulse/Stylus Torque specs

1.6L ( SOHC )

Component Torque
Air Intake Plenum-to-Intake manifold Bolts 17 ft. lbs.
Camshaft Sprocket-to-Camshaft Bolt(s) 1990 43 ft. lbs.
1991-93 106 inch lbs.
Crankshaft Damper Bolt 87 ft. lbs.
Crankshaft Pulley Bolts 1990 89 inch lbs.
1991-93 17 ft. lbs.
Cylinder Head Bolts ( in sequence ) Step 1 29 ft. lbs.
Step 2 58 ft. lbs.
Exhaust Manifold Bolts and Nuts 30 ft. lbs.
Flywheel/Driveplate Bolts 1990 Manual 58 ft. lbs.
Automatic 47 ft. lbs.
1991-93 Step 1 22 ft. lbs.
Step 2 Note
Idler Pulley Bolts 22 ft. lbs.
Intake Manifold Bolts and Nuts 17 ft. lbs.
Main Bearing Cap Bolts 44 ft. lbs.
Oil Pan Bolts and Nuts 89 inch lbs.
Oil Pump Bolts 89 inch lbs.
Oil Pump Cover Screws 89 inch lbs.
Oil Pump Relief Valve Plug 27 ft. lbs.
Rear Main Oil Seal Retainer Bolts 89 inch lbs.
Rear Mount Center Bolts 76 ft. lbs.
Rear Mount-to-Transaxle Case Bolts 37 ft. lbs.
Rocker Arm Bracket Bolts 16 ft. lbs.
Rod Bearing Cap Nuts 1990 36 ft. lbs.
1991-93 Step 1 11 ft. lbs.
Step 2 Note
Throttle Body-to-Air Intake Plenum Bolts 16 ft. lbs.
Timing Belt Cover Bolts 31 ft. lbs.
Timing Belt Tensioner 31 ft. lbs.
Valve Cover Bolts 89 inch lbs.
                Note Tighten an additional 45 to 60 degrees.
                   

Fig.1 Cylinder head bolt torque sequence-1.6L ( SOHC )

Fig. 2 Rocker arm bracket bolt torque sequence-1.6L ( SOHC )

Fig. 3 Rocker arm bracket bolt loosening sequence-1.6L ( SOHC )

Fig. 4 Timing mark alignment-1.6L ( SOHC )

Fig. 5 Firing order and cylinder location-All

Fig. 6 Main bearing cap torque sequence-All

1.6L ( DOHC )

Component Torque
Air Intake Plenum-to-Intake manifold Bolts 17 ft. lbs.
Camshaft Bearing cap Bolts 89 inch lbs.
Camshaft Sprocket-to-Camshaft Bolt 43 ft. lbs.
Crankshaft Center Bolt 87 ft. lbs.
Cylinder Head Bolts ( in sequence ) Step 1 29 ft. lbs.
Step 2 58 ft. lbs.
Exhaust Manifold Bolts and Nuts 30 ft. lbs.
Flywheel/Driveplate Bolts 1990 Manual 58 ft. lbs.
Automatic 47 ft. lbs.
1991-93 Step 1 22 ft. lbs.
Step 2 Note
Idler Pulley Bolts 22 ft. lbs.
Intake Manifold Bolts and Nuts 17 ft. lbs.
Main Bearing Cap Bolts 44 ft. lbs.
Oil Pan Bolts and Nuts 89 inch lbs.
Oil Pump Bolts 89 inch lbs.
Oil Pump Cover Screws 89 inch lbs.
Oil Pump Relief Valve Plug 27 ft. lbs.
Rear Main Oil Seal Retainer Bolts 89 inch lbs.
Rear Mount Center Bolts 76 ft. lbs.
Rear Mount-to-Transaxle Case Bolts 37 ft. lbs.
Rod Bearing Nuts 1990 36 ft. lbs.
1991 Step 1 11 ft. lbs.
Step 2 Note
Throttle Body-to-Air Intake Plenum Bolts 16 ft. lbs.
Timing Belt Cover Bolts 89 inch lbs.
Timing Belt Tensioner 31 ft. lbs.
Valve Cover Bolts 26 inch lbs.
                  Note Tighten bolts an additional 45 to 60 degrees

Fig. 1 Cylinder head bolt torque sequence-1.6L & 1.8L ( DOHC )

Fig. 2 Timing mark alignment-1.6L & 1.8L ( DOHC )

Fig. 3 Main bearing cap torque sequence-All

Fig. 4 Firing order and cylinder location-All

1.8L ( DOHC )

Component Torque
Air Intake Plenum-to-Intake manifold Bolts 17 ft. lbs.
Camshaft Bearing cap Bolts 89 inch lbs.
Camshaft Sprocket-to-Camshaft Bolt 43 ft. lbs.
Crankshaft Center Bolt 108 ft. lbs.
Cylinder Head Bolts ( in sequence ) Step 1 29 ft. lbs.
Step 2 58 ft. lbs.
Exhaust Manifold Bolts and Nuts 30 ft. lbs.
Flywheel/Driveplate Bolts 1990 Manual 58 ft. lbs.
Automatic 47 ft. lbs.
1991-93 Step 1 22 ft. lbs.
Step 2 Note #1
Idler Pulley Bolts 22 ft. lbs.
Intake Manifold Bolts and Nuts 17 ft. lbs.
Main Bearing Cap Bolts Step 1 22 ft. lbs.
Step 2 44 ft. lbs.
step 3 65 ft. lbs.
Oil Pan Bolts and Nuts 89 inch lbs.
Oil Pump Bolts 89 inch lbs.
Oil Pump Cover Screws 89 inch lbs.
Oil Pump Relief Valve Plug 27 ft. lbs.
Rear Main Oil Seal Retainer Bolts 89 inch lbs.
Rear Mount Center Bolts 76 ft. lbs.
Rear Mount-to-Transaxle Case Bolts 37 ft. lbs.
Rod Bearing Nuts Step 1 18 ft. lbs.
Step 2 Note #2
Throttle Body-to-Air Intake Plenum Bolts 16 ft. lbs.
Timing Belt Cover Bolts 89 inch lbs.
Timing Belt Tensioner 31 ft. lbs.
Valve Cover Bolts 26 inch lbs.
                  Note #1 Tighten bolts an additional 45 to 60 degrees
                  Note #2 Tighten bolts an additional 100 degrees

 

Fig. 1 Cylinder head bolt torque sequence-1.6L & 1.8L ( DOHC )

Fig. 2 Timing mark alignment-1.6L & 1.8L ( DOHC )

Fig. 3 Main bearing cap torque sequence-All

Fig. 4 Firing order and cylinder location-All


Transmission/Drive Train

Component Torque
Automatic Transaxle-to-Engine Bolts 31 ft. lbs.
Driveaxle/Hub Nut 137 ft. lbs.
Intermediate Shaft Bracket Bolts 30 ft. lbs. *
Manual Transaxle-to-Engine Bolts 55 ft. lbs.
Pressure Plate-to-Flywheel Bolts 13 ft. lbs.
Torque Converter-to-Driveplate Bolts 31 ft. lbs.
* This assembly is only used on cars with a 1.8L engine and manual transaxle.

Suspension/Steering

Front Suspension
Component Torque