Torque wrench for spark plugs ?

Is a torque wrench necessary for replacing spark plugs ?

A mechanic can put alot together without a torque wrench, it comes with experience. Mechanics sees plenty of screwed up spark plugs and threads by amateurs, and if you don’t have more than five years experience, I suggest to use the torque wrench and do the job.

The plug needs to be tightened to the correct specification. If [..]

Tips for Using, Maintaining Torque Wrenches

User practices

1. Safety glasses or goggles should be worn at all times when using any hand tool.
2. Always follow the manufacturer’s directions regarding torque direction, proper force, torque pattern/sequence, use or non-use of lubrication on fasteners and torque “tighten/release” cycles.
3. Use a torque wrench to apply a specific torque value during the final assembly process. Do not use a torque [..]

Dial Torque Wrench

What unit of measurements is read on a dial torque wrench ?
The unit of measurements on a dial torque wrench is either foot pounds (usual on large wrenches), inch pounds (usual on smaller 3/8″ drive wrenches) or Newton/Meters (metric, either size). Some will have readouts for both ASE and Metric [..] .

Torque socket wrench

What is the Difference between a torque wrench and a socket wrench ?

A socket wrench is like a small steel tube – one end has ridges that fit precisely around a bolt. The other end often has an opening of 1/4″, 3/8″, or 1/2″ square. This end receives the protruded part of a ratchet with the same dimension.

Most torque wrenches look like a larger version of a ratchet[..]