Was wondering how to properly read a spark plug gapping tool, which of the 3 points is the proper way to read gap ?



and a little side note, these plugs are NGK BKR7E's and when I put them in my boosted GSR i noticed the car did not feel quite like the stock plugs, the car was definatly running slower. so i throw in the stock plugs and the difference was very noticable, on the butt-dyno at least im thinking it has to do with maybe improper spark plug gap ? anyone else have issues with these plugs ?

 

I *think* it is 3, but I could easily be wrong

 

3.

 

i'd like to know that too..

 

Looks like .035" gap to me

 

sorry to jack your thread,

I was just wondering if gapping your plugs with Feeler guages would be the same as using a gapping tool.

Put the feeler guage in, press the end down, and move the feeler gauge around for slight drag.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by earl &raquo;</TD></TR><TR><TD CLASS="quote">Looks like .035" gap to me</TD></TR></TABLE>

I know most people recommend 30-32 gap but the question is on which point of the tip of the plug do you read from ? point 1,2,3 in the pic i provided ?

 

point 3 is correct

 

is it a joke or what !!!! if you dont know this you should not play with turbo....

 

I use #2, center one. I gapped mine to .032.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by yellowturbo &raquo;</TD></TR><TR><TD CLASS="quote">is it a joke or what !!!! if you dont know this you should not play with turbo....</TD></TR></TABLE>




Got to learn sometime man.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by yellowturbo &raquo;</TD></TR><TR><TD CLASS="quote">is it a joke or what !!!! if you dont know this you should not play with turbo....</TD></TR></TABLE>
Wow, look at the helpful noob.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by yellowturbo &raquo;</TD></TR><TR><TD CLASS="quote">is it a joke or what !!!! if you dont know this you should not play with turbo....</TD></TR></TABLE>

no this is not a joke.. what it the point of your post? ttt.. i'd like to know if its #2 or #3

 

Well if you think about the geometry of it all... The 3rd point will hit the high spot on the gapper first (the highest value) so I would have to agree and say number 3 is the right one...

 

I use 2, but 3 would work as well

 

I used feeler gauge...that's just how **** I can be on certain things

stan

 

i've always thought that it was #2, but then again im always willing to learn something new.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B18EG6 &raquo;</TD></TR><TR><TD CLASS="quote">Well if you think about the geometry of it all... The 3rd point will hit the high spot on the gapper first (the highest value) so I would have to agree and say number 3 is the right one...</TD></TR></TABLE>

that one makes sence

 

hehe i never knew either. so when they said to gap the plus to .030-.032 i just did # 1 mark @ .030 and # 3 mark @ .032. worked good for me

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Flamenco-T &raquo;</TD></TR><TR><TD CLASS="quote">I used feeler gauge...that's just how **** I can be on certain things

stan</TD></TR></TABLE>
As do I.

 

I kind of misread your question. For high performance apps you should really use a feeler gauge. I suppose #3 would be correct.

 

feeler gauge.

 

#3 is the way to go. #2 will not give you an accurate reading.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by yellowturbo &raquo;</TD></TR><TR><TD CLASS="quote">is it a joke or what !!!! if you dont know this you should not play with turbo....</TD></TR></TABLE>

damn canadians

 

feeler gauge would yield the same as 3 which would be the thickest point. the number closest to the edge of the strap is the gap...looks like .036 or .037 based on the pics.