(October 31, 2019 at 9:04 pm)onlinebiker Wrote:(October 31, 2019 at 6:32 pm)Anomalocaris Wrote: Physics =\= EBayTell the engineers at GM that you know better than them.
Is that little enough typing for you?
They required all dealerships to have a degree torque wrench setup - because it was more accurate and solved the head bolt breakage problem they were having.
Head bolt breakage is either incompetence on the part of the mechanic, the Jack of all trade types? Or a lack of equipment maintenance. Torque wrenches need to be calibrated regularly, failure to do so will result in:
a) The spring loaded toggle will flip to late and the bolt will snap and you have a problem.
b) The toggle will flip to soon and the engine can undergo catastrophic failure depending on where the bolt is. Slack head bolts will blow the head gasket, slack main bearing bolts will destroy the engine.
This why the angle indicator method was adopted, it removes some human error.*
*Angle indicator, there is no such thing as angle torque.
It's amazing 'science' always seems to 'find' whatever it is funded for, and never the oppsite. Drich.