For 1990-2009 cars only
SMU - LB7, LLY Diesel Engine Revised M12 Cylinder Head Bolt Fastener Tightening Specification
| Subject: | LBZ, LLY Diesel Engine Revised M12 Cylinder Head Bolt Fastener Tightening Specification |
| Models: | 2006 Chevrolet Silverado |
| 2006 GMC Sierra |
| with 6.6L Diesel Engine |
This bulletin is being issued to revise the M12 Cylinder Head Bolt Fastener Tightening Specification in the Engine Mechanical sub-section of the Service Manual. Please replace the current information in the Service Manual with the following information.
The following information has been updated within SI. If you are using a paper version of this Service Manual, please make a reference to this bulletin on the affected page.
Application | Specification | |
|---|---|---|
Metric | English | |
Cylinder Head M12 Bolt - Angular Tightening Method | 1st Step 50 N·m | 1st Step 37 lb ft |
2nd Step 80 N·m | 2nd Step 59 lb ft | |
3rd Step 60 degrees | ||
4th Step 60 degrees | ||
