How important are torque settings on bolts?

marlot

Strider590 wrote: »

Your correct, but OP stated "head cover" which really doesn't matter too much because there's almost no pressure behind it, due to the vented filler cap

He then goes on to say "If we take the example of replacing the cylinder head..."

Stigy

Absolutely vital in this case. They need torquing for a reason, and must be tightened in the correct sequence, too. I tend not to use a torque wrench for wheelnuts, although when I was in the motor trade I would do, bearing in mind an airgun can be deceivingly excessive!

pendulum

mikey72 wrote: »

Sump plug is one of the main things I use it for.
The alloy sump on mine is prone to stripping, or seizing up, if you mess it up.

Yes. Reading what I wrote back, I said I don't use a torque wrench for sump bolts, just important stuff. Well, a sump bolt obviously is important as you don't want to dump oil everywhere or strip the thread. That was a bad example!