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[jacko]

What is the manufacturers torque settings
For spark plugs for 2.2 year 2002
Sorry to be asking all these questions but I’m learning.

[johnnydog]

After the thread starts, turn them by hand (using fingers with a piece of hose if deep in the head which also reduces any chance of cross threading) until the sealing washer contacts, then a further 1/4 turn with the spark plug spanner or socket. They don't need to to be particularly tight, especially in an alloy head.

[Andy B]

What Johnny says .... I was always taught that flat seated plugs that used a crush washer was a quarter turn after you'd tightened by hand & taper seated plugs was about an eighth of  turn.

[Nick W]

What Johnny says .... I was always taught that flat seated plugs that used a crush washer was a quarter turn after you'd tightened by hand & taper seated plugs was about an eighth of  turn.

NGK put that on their boxes...

[Andy B]

What Johnny says .... I was always taught that flat seated plugs that used a crush washer was a quarter turn after you'd tightened by hand & taper seated plugs was about an eighth of  turn.

NGK put that on their boxes...

Do they ..... I don't read instructions 

[iansoutham]

Was always taught to do spark plugs up to 25nm so that is what I do. Small bit of conductive grease  on the end threads only to help prevent them seizing and leave them until service time

[johnnydog]

Dispite the given tightening torque, or 1/4 or 1/8th turns, most competant (home) mechanics are able to assess when they are correctly tightened just by feel. This applies to a lot of fastenings on any car, although certain engine components should and have to be be tightened using a torque wrench to the book figures.