SOURCE: Engine Bolt Torques- 2005 Chevy Impala/3400 Engine
Head Bolts
Step one 37 ft lbs then tignten 120 degrees more
Rocker arms
Step one 11 ft lbs then tighten 90 degresss more
Upper intake
89 inch lbs
Lower intake
132 inch lbs
SOURCE: torque specs for the cylinder head
2004 ENGINE
Engine Mechanical - 1.6L (L91) - Aveo
SPECIFICATIONS
FASTENER TIGHTENING SPECIFICATIONS
Fastener Tightening Specifications
Application
Specification
Metric English
A/C Compressor Mounting Bolts 27 N.m 20 lb ft
A/C Compressor Mounting Bracket Bolts 50 N.m 37 lb ft
Air Filter Housing Bolts 12 N.m 106 lb in
Alternator Adjusting Bolt 20 N.m 15 lb ft
Alternator Adjusting Bracket Retaining Bolt 20 N.m 15 lb ft
Auxiliary Catalytic Converter-to-Exhaust Manifold
Nuts and Bracket Bolts
40 N.m 30 lb ft
Camshaft Cap Bolts 16 N.m 12 lb ft
Camshaft Gear Bolt 67.5 N.m 49 lb ft
Camshaft Pressure Plate Bolts 10 N.m 89 lb in
Connecting Rod Bearing Cap Bolts 25 N.m+30°+15° 18 lb ft+30°+15°
Coolant Pump Retaining Bolts 10 N.m 89 lb in
Coolant Temperature Sensor 20 N.m 15 lb ft
Crankshaft Bearing Cap Bolts 50 N.m+45°+15° 37 lb ft+45°+15°
Crankshaft Position Sensor Retaining Bolt 10 N.m 89 lb in
Crankshaft Pulley Bolt 95 N.m+30°+15° 70 lb ft+30°+15°
Cylinder Head Bolts - Camshaft Support Housing
and Cylinder Head Mounting Bolts
25 N.m+60°+60°
+60°+15°
18 lb ft+60°+60°
+60°+10°
Electronic Ignition System Ignition Coil Mounting
Bolts
10 N.m 89 lb in
Electronic Ignition System Ignition Coil Mounting
Plate Bolts 10 N.m 89 lb in
Engine Mount Bracket Retaining Bolt 65 N.m 48 lb ft
Engine Mount Bracket-to-Engine Mount Retaining
Bolts
60 N.m 44 lb ft
Engine Mount Retaining Nuts 40 N.m 30 lb ft
Exhaust Flexible Pipe Bracket Bolts 40 N.m 30 lb ft
Exhaust Gas Recirculation Valve Adapter Bolts 25 N.m 18 lb ft
Exhaust Manifold Heat Shield Bolts 15 N.m 11 lb ft
Exhaust Manifold Nuts 25 N.m 18 lb ft
Flexible Plate Bolts 60 N.m 44 lb ft
Flexible Plate Inspection Cover Bolts 10 N.m 89 lb in
Flywheel Bolts 35 N.m+30°+15° 26 lb ft+30°+15°
Flywheel Inspection Cover Bolts 12 N.m 106 lb in
Front Muffler-to-Main Catalytic Converter Nuts 30 N.m 22 lb ft
Fuel Rail Retaining Bolts 25 N.m 18 lb ft
MITCHELL 1 ARTICLE - 2004 ENGINE Engine Mechanical - 1.6L (L91) - Aveo Page 1 of 330
http://www.eautorepair.net/app/PrintItems.asp?S0=2097152&S1=0&SG=%7BEEDCF... 3/30/2009
ENGINE MECHANICAL SPECIFICATIONS
Engine Mechanical Specifications
Intake Manifold Retaining Nuts 25 N.m 18 lb ft
Intake Manifold Support Bracket Lower Bolt-to-
Engine Block 40 N.m 30 lb ft
Intake Manifold Support Bracket Upper Bolts 25 N.m 18 lb ft
Lower Timing Belt Cover Bolts 10 N.m 89 lb in
Oil Pan Retaining Bolts 10 N.m 89 lb in
Oil Pressure Switch 40 N.m 30 lb ft
Oil Pump Retaining Bolts 10 N.m 89 lb in
Oil Pump/Pickup Tube and Support Bracket Bolts 10 N.m 89 lb in
Oil Pump Safety Relief Valve Bolt 36 N.m 22 lb ft
Oil Pump Rear Cover Bolts 6 N.m 53 lb in
Power Steering Pump Mounting Bolts 25 N.m 18 lb ft
Power Steering Pump Pulley Bolts 25 N.m 18 lb ft
Rear Timing Belt Cover Bolts 10 N.m 89 lb in
Spark Plug Cover Bolts 3 N.m 27 lb in
Spark Plugs 25 N.m 18 lb ft
Thermostat Housing Mounting Bolts 20 N.m 15 lb ft
Throttle Cable Bracket Bolts 8 N.m 71 lb in
Timing Belt Automatic Tensioner Bolt 25 N.m 18 lb ft
Timing Belt Idler Pulley Bolt 40 N.m 30 lb in
Transaxle Bell Housing Bolts 75 N.m 55 lb ft
Transaxle Brace Bolts 40 N.m 30 lb ft
Transaxle Torque Converter Bolts 65 N.m 48 lb ft
Upper Timing Belt Cover Bolts 10 N.m 89 lb in
Valve Cover Bolts 10 N.m 89 lb in
Application
Specification
Metric English
General Data
Engine Type 4 Cylinder - In-Line
Displacement 1598 cm3 97.51 in3
Bore Stroke 79.0x81.5 mm 3.1x3.21 in
Compression Ratio 9.5:1
Firing Order 1-3-4-2
Maximum Power - At 6200 RPM 77 kw/103.3 hp
Maximum Torque - At 3400 RPM 145 N.m 106.9 lb ft
Cylinder Bore
Diameter 79 mm 3.1 in
Out of Round - Maximum 0.0065 mm 0.00025 in
Taper - Maximum 0.0065 mm 0.00025 in
Piston
MITCHELL 1 ARTICLE - 2004 ENGINE Engine Mechanical - 1.6L (L91) - Aveo Page 2 of 330
SOURCE: need torque specs for 83 chevy 350 cylinder head bolts.
Hello there
Torque
Specs
These specs may not be correct for your
application.
Verify your engine specs with a service manual
for your year and model.
always
torque
bolts in three equal increments
Bolts or Parts
Lube or Sealer
Torque to:
7/16 Main Caps (2 bolt)
Engine Oil
70 ft-lbs.
7/16 Inner Main Caps (4 bolt)
Engine Oil
70 ft-lbs.
7/16 Outer Main Caps (4 bolt)
Engine Oil
65 ft-lbs.
3/8 Outer Main Caps (4 bolt)
Engine Oil
40 ft-lbs.
Warning!!! If you
are using ARP bolts, you MUST use
their specs. Click Here!
3/8 Connecting Rod Bolt
Engine Oil
45 ft-lbs.
11/32 Connecting Rod Bolt
Engine Oil
45 ft-lbs.
Cylinder
Heads
Engine
oil
(blind hole)
Sealer
(water
jacket)
65 ft-lbs.
Rocker Studs (screw-in)
Engine Oil
50 ft-lbs.
Oil Pump
Engine Oil
65 ft-lbs.
Oil Pan
Engine Oil
12 ft-lbs.
Cam Sprocket (upper gear)
Thread Locker
20 ft-lbs.
Timing Cover
Engine Oil
6 ft-lbs.
Intake
Manifold
(Cast Iron
Heads)
Non- Hardening Sealer
30 ft-lbs.
Valve Cover
Engine Oil
3 ft-lbs.
Exhaust Manifold
Anti-Seize Lubricant
25 ft-lbs.
Spark Plugs
No Lube or Sealer
20 ft-lbs.
Flexplate
(Automatic)
Flywheel
(Clutch)
Thread Locker
60 ft-lbs.
Clutch Pressure Plate
Thread Locker
35 ft-lbs.
Centerbolt
(Harmonic
Damper)
Engine Oil
60 ft-lbs.
Bellhousing
(Transmission
to Block)
Engine Oil
25 ft-lbs.
Head
Bolt Tightening Sequence
SOURCE: TORQUE SPECS /HEAD GASKET/2001 CAVALIER...
for the 2.2L OHV:
(pully 8 4 1 5 9 <-- long bolts @ 63Nm (46ft/lb)
side ) 7 3 2 6 10 <-- short bolts / 10 is the stud @ 58Nm (43ft/lb)
for the 2.4l
dohc are as follows:
(pully 9 3 1 5 7
side) 10 6 2
4 8
bolts 1-8 torqued to 65Nm (40ft/lb)
bolts 9-10 torqued to
40Nm (30ft/lb)
then (either engine) give each an additional 90° (¼)
turn
it's best to do
the tightening in stages, you don't want to go completely tight on the
first pass or there will problems and you'll get to do it all over again
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