torque specs

[faribran]

this may be a sylleee question... but... does anyone have a way around the
combo torque procedure for these engines... what i mean is... the initial torque in ft lbs.. then the "x" degrees of tightening........

[faribran]

ttt

[68GMCCustom]

sure....go with the ft. and in lbs specs.

check out this thread and download the .pdf...

http://67-72chevytrucks.com/vboard/s...d.php?t=419211

[Big Port Jimmy 6]

Head bolt sequence " Magic Marker method"

Now, grab a socket wrench and lightly turn the bolts until they stop. Now for the very precise part. You need to get your torque wrench out now and fit it with a 3" extension and a 15mm socket.




Using the sequence illustrated above, torque all 10 15mm bolts to 22lb-ft.

OK, now for a GREAT tip from Scott99Z. Take a felt tip marker and draw a horizontal line on the head of each bolt. This is very important.

Now, using the sequence illustrated above, turn all 10 15mm bolts an additional 90 degrees using a large socket wrench and a lot of muscle. Try to get as close to 90 degrees as possible...you may have to do multiple turns of 30 degrees or 2 turns of 45 degrees. When done all the lines on the bolt heads should be totally vertical.

Next, again using the sequence above, turn bolts 1 through 8 another 90 degrees. This will take an immense amount of effort...if you have a buddy helping both of you should turn the wrench simultaneously. These 8 bolts will now all have horizontal lines on them

Using the sequence above, turn bolts 9 and 10 an additional 50 degrees. Again, this will take a lot of effort. 50 degrees should result in a diagonal line on the bolts

Finally, using the sequence above, torque bolts 11 through 15 to 22 lb-ft.

[68GMCCustom]

Fastener Tightening Specifications
Specification
Application Metric English
Accelerator Control Cable Bracket Bolts 10 N•m 89 lb in
Camshaft Retainer Bolts 25 N•m 18 lb ft
Camshaft Sensor Bolt 25 N•m 18 lb ft
Camshaft Sprocket Bolts 35 N•m 26 lb ft
Connecting Rod Bolts-First Design (First Pass) 20 N•m 15 lb ft
Connecting Rod Bolts-First Design (Final Pass) 60 degrees
Connecting Rod Bolts-Second Design (First Pass) 20 N•m 15 lb ft
Connecting Rod Bolts-Second Design (Final Pass) 75 degrees
Coolant Temperature Gauge Sensor 20 N•m 15 lb ft
Crankshaft Balancer Bolt (Installation Pass-to Ensure the Balancer is
Completely Installed 330 N•m 240 lb ft
Crankshaft Balancer Bolt (First Pass-Install a NEW Bolt After the
Installation Pass and Tighten as Described in the First and Final
Passes) 50 N•m 37 lb ft
Crankshaft Balancer Bolt (Final Pass) 140 degrees
Crankshaft Bearing Cap Bolts (Inner Bolts-First Pass in Sequence) 20 N•m 15 lb ft
Crankshaft Bearing Cap Bolts (Inner Bolts-Final Pass in Sequence) 80 degrees
Crankshaft Bearing Cap Side Bolts 25 N•m 18 lb ft
Crankshaft Bearing Cap Bolts (Outer Studs-First Pass in Sequence) 20 N•m 15 lb ft
Crankshaft Bearing Cap Bolts (Outer Studs-Final Pass in Sequence) 51 degrees
Crankshaft Oil Deflector Nuts 25 N•m 18 lb ft
Crankshaft Position Sensor Bolt 25 N•m 18 lb ft
Cylinder Head Bolts (First Pass-all M11 Bolts in Sequence) 30 N•m 22 lb ft
Cylinder Head Bolts (Second Pass-all M11 Bolts in Sequence) 90 degrees
Cylinder Head Bolts (Final Pass-all M11 Bolts in Sequence-Excluding
the Medium Length Bolts at the Front and Rear of Each Cylinder Head) 90 degrees
Cylinder Head Bolts (Final Pass-all M11 Medium Length Bolts at the
Front and Rear of Each Cylinder Head in Sequence) 50 degrees
Cylinder Head Bolts (M8 Inner Bolts in Sequence) 30 N•m 22 lb ft
Cylinder Head Coolant Plug 20 N•m 15 lb ft
Engine Block Coolant Drain Plugs 60 N•m 44 lb ft
Engine Block Heater 40 N•m 30 lb ft
Engine Block Oil Gallery Plugs 60 N•m 44 lb ft
Engine Coolant Air Bleed Pipe Bolts 12 N•m 106 lb in
Engine Flywheel Bolts (First Pass) 20 N•m 15 lb ft
Engine Flywheel Bolts (Second Pass) 50 N•m 37 lb ft
Engine Flywheel Bolts (Final Pass) 100 N•m 74 lb ft
Engine Front Cover Bolts 25 N•m 18 lb ft
Engine Rear Cover Bolts 25 N•m 18 lb ft
6-8 Engine Mechanical - 6.0L Engine
2002
Fastener Tightening Specifications (cont’d)
Specification
Application Metric English
Engine Service Lift Bracket M10 Bolts 50 N•m 37 lb ft
Engine Service Lift Bracket M8 Bolt 25 N•m 18 lb ft
Engine Sight Shield Bolts 10 N•m 89 lb in
Engine Sight Shield Bracket Bolts 5 N•m 45 lb in
Engine Valley Cover Bolts 25 N•m 18 lb ft
Exhaust Manifold Bolts (First Pass) 15 N•m 11 lb ft
Exhaust Manifold Bolts (Final Pass) 25 N•m 18 lb ft
Exhaust Manifold Heat Shield Bolts 9 N•m 80 lb in
Fuel Rail Bolts 10 N•m 89 lb in
Fuel Rail Crossover Tube Bolts 3.8 N•m 34 lb in
Fuel Rail Stop Bracket Bolt 50 N•m 37 lb ft
Ignition Coil-to-Bracket Bolts 8 N•m 71 lb in
Ignition Coil Bracket-to-Valve Rocker Arm Cover Studs 12 N•m 106 lb in
Intake Manifold Bolts (First Pass in Sequence) 5 N•m 44 lb in
Intake Manifold Bolts (Final Pass in Sequence) 10 N•m 89 lb in
Intake Manifold Wiring Harness Stud 10 N•m 89 lb in
Knock Sensors 20 N•m 15 lb ft
Oil Filter 30 N•m 22 lb ft
Oil Filter Fitting 55 N•m 40 lb ft
Oil Level Indicator Tube Bolt 25 N•m 18 lb ft
Oil Level Sensor 13 N•m 115 lb in
Oil Pan Baffle Bolts 12 N•m 106 lb in
Oil Pan Closeout Cover Bolt (Left Side) 9 N•m 80 lb in
Oil Pan Closeout Cover Bolt (Right Side) 9 N•m 80 lb in
Oil Pan Cover Bolts 12 N•m 106 lb in
Oil Pan Drain Plug 25 N•m 18 lb ft
Oil Pan M8 Bolts (Oil Pan-to-Engine Block and Oil Pan-to-Front Cover) 25 N•m 18 lb ft
Oil Pan M6 Bolts (Oil Pan-to-Rear Cover) 12 N•m 106 lb in
Oil Pressure Sensor 20 N•m 15 lb ft
Oil Pump-to-Engine Block Bolts 25 N•m 18 lb ft
Oil Pump Cover Bolts 12 N•m 106 lb in
Oil Pump Relief Valve Plug 12 N•m 106 lb in
Oil Pump Screen Nuts 25 N•m 18 lb ft
Oil Pump Screen-to-Oil Pump Bolt 12 N•m 106 lb in
Spark Plugs-New 20 N•m 15 lb ft
Spark Plugs-All Subsequent Installations 15 N•m 11 lb ft
Throttle Body Nuts 10 N•m 89 lb in
Throttle Body Studs 6 N•m 53 lb in
Valve Lifter Guide Bolts 12 N•m 106 lb in
Valve Rocker Arm Bolts 30 N•m 22 lb ft
Valve Rocker Arm Cover Bolts 12 N•m 106 lb in
Water Inlet Housing Bolts 15 N•m 11 lb ft
Water Pump Bolts (First Pass) 15 N•m 11 lb ft
Engine Engine Mechanical - 6.0L 6-9
2002
Fastener Tightening Specifications (cont’d)
Specification
Application Metric English
Water Pump Bolts (Final Pass) 30 N•m 22 lb ft
Water Pump Cover Bolts 15 N•m 11 lb ft