jdubs12 Posted January 21, 2013 Share Posted January 21, 2013 So I recently put in spark plugs in an attempt to restore some power and it didnt work (o2 sensor was a bust too) and my friend said I should have gaped them... Now I know someone wants to explain this to me haha Link to comment Share on other sites More sharing options...
Balln Posted January 21, 2013 Share Posted January 21, 2013 Every plug should be gapped before installing. The little hook on the end needs to have a certain gap between it and the electrode nipple thing under it. I did have a Nissan truck where it did help once I gapped the plugs. I know my NGK plugs that I get from the store are way off. You have prob seen the tool to gap it with at the parts store and never realized it. There really cheap and it doesn't take any time to do it before installing. Link to comment Share on other sites More sharing options...
jdubs12 Posted January 21, 2013 Author Share Posted January 21, 2013 does any1 know how I much i gap it Link to comment Share on other sites More sharing options...
MY1PATH Posted January 21, 2013 Share Posted January 21, 2013 I don't remember the factory spec but if you go 0.039" you will be fine. Link to comment Share on other sites More sharing options...
Balln Posted January 21, 2013 Share Posted January 21, 2013 I wanna say its 34 Link to comment Share on other sites More sharing options...
Towncivilian Posted January 21, 2013 Share Posted January 21, 2013 The specified gap is 0.031 - 0.035 in (0.8 - 0.9 mm). Link to comment Share on other sites More sharing options...
BikerJared Posted January 21, 2013 Share Posted January 21, 2013 Also, you can usually get a cheap measurement tool at a parts store. Unless the gap is way off though, I don't think you'll notice a big difference in power. It seems like you may be shooting in the dark here - have you done any diagnostic work to get to the root of the problem? Link to comment Share on other sites More sharing options...
jdubs12 Posted January 21, 2013 Author Share Posted January 21, 2013 no haha, I am going to crappy tire this afternoon to have them check the codes.and depending on that I will probably do a compression test next. Link to comment Share on other sites More sharing options...
Precise1 Posted January 22, 2013 Share Posted January 22, 2013 Every plug should be gapped before installing. The little hook on the end needs to have a certain gap between it and the electrode nipple thing under it. I did have a Nissan truck where it did help once I gapped the plugs. I know my NGK plugs that I get from the store are way off. You have prob seen the tool to gap it with at the parts store and never realized it. There really cheap and it doesn't take any time to do it before installing. No. Some platinum and all iridium plugs have a delicate electrode with a critical coating that you don't want to damage so unless you can check it visually (microscope), leave it alone. Shoving gauges in and out isn't an option, but I have never seen high end plugs be out of range. I highly recommend NGK plugs, they work well and aren't expensive. All of their plugs for the 1995 Pathfinder list a .032" gap and the 1995 FSM says .031-.035". B Link to comment Share on other sites More sharing options...
Balln Posted January 22, 2013 Share Posted January 22, 2013 I just replaced my plugs with ngk and all of them needed to be gapped bigger. I am really carful to not pry on the elctrode. Link to comment Share on other sites More sharing options...
nunya Posted January 22, 2013 Share Posted January 22, 2013 I have mine gapped at .040 but I have I have a TBI motor and that's in the range where mine are supposed to be (at the low end at that) Link to comment Share on other sites More sharing options...
jdubs12 Posted January 22, 2013 Author Share Posted January 22, 2013 roger leaving the plugs alone. I had them run the codes and my EGR valve had failed... Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now