To do this, you will use a torque-wrench. You don't usually torque a bolt to the present specifications, but you get the proper specification numbers out of a service manual. There is information on-line that will tell you the proper torque specifications of pretty much every bolt and nut in a vehicle. Google is your friend.
maruti 800 2002 tightening torques of cylinder head
Tightening torques are: Stage 1 - 15Nm Stage 2 - 30Nm Stage 3 - 90Degrees
75 lb/ft Long Bolts 65 lb/ft Short Bolts
For undoing and tightening nuts and bolts.
Begin by tightening the head bolts on each corner of the head. Next, tighten the center head bolts. Tighten the bolts on each end of the head and move towards the center.
38ft/lb for the mains
The Honda had bolt tightening sequence begins with the head bolts on each end of the head. Tighten the head bolts moving to the center, alternating from and to end.
The cylinder had bolt tightening sequence should begin by tightening the head bolts on each end of the head. Tighten the center head bolts. Work towards each end of the head, alternating back and forth.
loosening and tightening nuts and bolts
A wrench is a lever for tightening or loosening bolts .
You can use spanners for :- Gas Repair, Plumbing, Tightening bolts.
All bolts in any vehicle have specific torque ratings. -There are usually at least 35-50 specified torques for all the bolts. -You haven't said WHICH bolts you want the torque value for, so we can't answer. -Your best bet is to buy the specific manual for your car where all the torques will be written in one page.