I just bought NGK Copper V Power Spark Plug for 2000 Tiburon. If I remember correctly, it comes with pre gap of .044. Should I regap this or just leave it like that?

 

ALWAYS check the gap. They claim they are pre-gapped, but I always find 1 or 2 are off...

 

A newbie question

If I happen to get spark plug that has wrong pre gap, and put them on my car, would it severely hurt the engine?

And how do I regap the plug?

 

It won't really hurt the engine, just don't do it. smile.gif All you have to do to gap a plug is go to the friendly neighborhood parts store (or Wal Mart) and get a spark plug feeler gauge. There is like 4 different types of these damn things.. You can get a ramp gauge that is no more than 1.5" across that fits on your key ring. (I have one smile.gif smile.gif) The ramp gauges cost about a buck, and the feeler gauges cost anywhere from a buck to 5 bucks.. Have fun

 

It will hurt top performance and possibly gas mileage. Do NOT use the "Ramp" style gappers. It puts the gap and an "" angle. Stick with the feeler type.

 

Just to throw in my usual stupid question...

Are spark plugs "standarized" by any means? I mean, are the threads on all plugs identical, therefore making any plug interchangable with any other plug?

 

Threads are different as are plug sizes. There are some commonly accepted "standard" sizes and thread pitchs, but no, not all plugs are the same.