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: Replacing front wheel hub assembly on 2006
Caliper mount bolts are 74 ft/lbs
Driveshaft axle nut is 177 ft/lbs
Hub and bearing mounting bolts are 133 ft/lbs
Testimonial: "The info on the torgue specs was very helpful. I couldn't find it anywhere. Thanks a bunch!"
SOURCE: I need torque specs for
torque specs. to a 2001 chevrolet malibu 3.1 engine with also needing head and manifold torque specs. as well.
SOURCE: I'm looking for the procedure to install a front
Hub bolts are around 65-70 foot pounds, axle nut is about 120-130 ft pounds. These are not super-critical. Many at shops are installed using air guns and work just fine. Your main objective is to not have them come loose. If axle nut has a cotter pin, never back off on nut to install. always tighten to get holes for pin aligned.
SOURCE: How to remove and replace valves on head of 2004
Assuming that you mean the exhaust and /or intake valves.
The first step is to remove the head. For step-by-step instructions, you'll need to get a service manual which includes pictures.
They can be quite beneficial, since they provide instructions for which parts must be removed to get to the head. Your local library can be a great resource, since many libraries have a good supply of manuals for different vehicles.
Once you have the head off, I seriously recommend that you take it to a local machine shop. It will cost you a little more than replacing the heads yourself, but the machine shop can check the condition of the valve guides, springs, seats and the actual valves. Another advantage is that the machine shop can set up the valve clearance to the camshaft.
The machine shop will also test the head to make certain that the surface is perfectly flat. That's important when you're re-installing the head.
Always use new gaskets and follow the torque specifications indicated for your engine.
This is a technical job, and you need to follow the engine specifications if you want the vehicle to perform properly.
Good luck.
1,419 views
Usually answered in minutes!
×