How long will it take to notice IF there was a problem changing my spark plugs?

For those of you who answered my last question thanks, this is a different one though. if one overtightened spark plugs, or undertightend the spark plugs....how long or how many miles estimated would u have to drive until something goes wrong? like if one overtightened the spark plug, would it drive 100 miles then something fails? what would happen?How long will it take to notice IF there was a problem changing my spark plugs?It could blow out in 5 seconds or 5 years.



If a spark plug blew out of the head, your car would sound like a jack hammer, but would not do any serious damage. Just embarrass you.How long will it take to notice IF there was a problem changing my spark plugs?should not be a problem either way but over time if you undertightened them , they could blow out of the head. overtightened and they might be hard to remove next time or damage the threads on the plugs and/or the cylinder head ( especially is you have an aluminum head) but again either way you shouldnt have any kind of major failure because of itHow long will it take to notice IF there was a problem changing my spark plugs?You'll get misfires...if you miffed the gaps then definitely. Usually you can tell right away because the idle will be really rough.



What do you mean undertightened? If you hand tightened them even without the additional .5-.75 of a complete circle they shouldn't misfire or dislodge.



But really...if you're not comfortable working on a car you should probably pay a professional or buy a car that you don't mind destroying (a BEATER) to work on until you learn the ropes.