2000-2005 Discuss your 2000-2005 Bonneville SE, SLE, and SSEi Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

how do you gap your spark plugs?

Old 12-23-2006, 01:15 AM
  #1  
Member
Posts like a V-Tak
Thread Starter
 
kristie_jeff's Avatar
 
Join Date: Jun 2006
Posts: 97
Likes: 0
Received 0 Likes on 0 Posts
kristie_jeff is on a distinguished road
Default how do you gap your spark plugs?

At 33k miles, I got bored and wanted to check the gap on my plugs. They are the original (I assume) ones that came in the car. AC Delco ITR4A. From what I've read on here that is what our cars were born with.

Anyway, while checking the gap, I broke one of the little pins, you know, the one that comes up from the center of the plug. I mashed the L shaped thing down a little and made sure it was .60 from the remainder of the pin to the tip, but I want to replace that soon.

I am guessing that if I buy the NGK ITR4A-15, these are the same? How should I go about checking the gap? I have one of those little disk things from Autozone. Starts out small and gets thicker as you go around. Is that what you use? At $9 per, I would rather not break another.

By the way, it'* an 05 SE, no mods. Getting 20mpg around the city(part of the reason I wanted to check the gapping) and around 25-27mpg on the highway. That'* pretty low from reading other posts.

Merry Christmas to you guys and gals too.

Jeff
Old 12-23-2006, 01:39 AM
  #2  
Senior Member
True Car Nut
 
Hans's Avatar
 
Join Date: Jul 2004
Location: Twin Falls, Idaho
Posts: 7,545
Likes: 0
Received 1 Like on 1 Post
Hans is on a distinguished road
Default

you dont have to run platinums or iridiums....I'd match up the plugs though if you are going to replace it. I dont know if the NGK is identical or not.
Old 12-23-2006, 03:50 AM
  #3  
Senior Member
True Car Nut
 
markwb's Avatar
 
Join Date: Oct 2002
Location: Groton, CT _NEBF 05, 06, 07_
Posts: 2,703
Likes: 0
Received 0 Likes on 0 Posts
markwb is on a distinguished road
Default Re: how do you gap your spark plugs?

Originally Posted by kristie_jeff
By the way, it'* an 05 SE, no mods. Getting 20mpg around the city(part of the reason I wanted to check the gapping) and around 25-27mpg on the highway. That'* pretty low from reading other posts.
Jeff
The mpg figures you're getting look good. At 33k the oem spark plugs are still fairly new.
Old 12-23-2006, 09:36 AM
  #4  
Senior Member
Certified Car Nut
 
1993 SLE's Avatar
 
Join Date: Oct 2003
Posts: 19,756
Likes: 0
Received 0 Likes on 0 Posts
1993 SLE is on a distinguished road
Default

if you are replacing anyway, go with the NGK TR55'*...they are about $2 per plug
Old 12-23-2006, 10:18 AM
  #5  
Senior Member
Certified GM nut
 
Technical Ted's Avatar
 
Join Date: Oct 2005
Location: Western New York
Posts: 1,942
Likes: 0
Received 0 Likes on 0 Posts
Technical Ted is on a distinguished road
Default

I never liked that style gauge that you're using. I prefer the one that has a wire that matches the gap.
Change that broken plug soon. Here'* a pic of the style gauge I like to use.



Old 12-23-2006, 01:25 PM
  #6  
Senior Member
Posts like a Camaro
 
daman's Avatar
 
Join Date: Sep 2003
Location: Bad Axe,MI.
Posts: 1,025
Likes: 0
Received 2 Likes on 2 Posts
daman is on a distinguished road
Default

Use feeler gauges,,can't get more accurate then that...
Old 12-23-2006, 01:35 PM
  #7  
RIP
True Car Nut
 
Archon's Avatar
 
Join Date: Jul 2004
Location: Grand Rapids, Mi
Posts: 5,656
Likes: 0
Received 1 Like on 1 Post
Archon is on a distinguished road
Default

All of them will work. Like TT, I don't like the ramp ones as well as I like to work with an even surface to be certain as to the gap. They do work, however. As do the wire ones, and the feeler gauges. The feeler gauges will work better if you want a gap between the settings of the wire gauge. The wire gauge will give you a more accurate reading than a flat gauge as the plugs wear and the side electode starts to get a small valley in it.
Old 12-23-2006, 01:45 PM
  #8  
Senior Member
Posts like a Camaro
 
daman's Avatar
 
Join Date: Sep 2003
Location: Bad Axe,MI.
Posts: 1,025
Likes: 0
Received 2 Likes on 2 Posts
daman is on a distinguished road
Default

Originally Posted by Archon
The wire gauge will give you a more accurate reading than a flat gauge as the plugs wear and the side electode starts to get a small valley in it.
why gap a old plug???

55'* are cheap as he11, throw a new set in, done...
Old 12-23-2006, 02:52 PM
  #9  
RIP
True Car Nut
 
Archon's Avatar
 
Join Date: Jul 2004
Location: Grand Rapids, Mi
Posts: 5,656
Likes: 0
Received 1 Like on 1 Post
Archon is on a distinguished road
Default

Originally Posted by daman
Originally Posted by Archon
The wire gauge will give you a more accurate reading than a flat gauge as the plugs wear and the side electode starts to get a small valley in it.
why gap a old plug???

55'* are cheap as he11, throw a new set in, done...
Because some people do. I provide options. People then chose what to do.
Old 12-23-2006, 02:54 PM
  #10  
Senior Member
Posts like a Turbo
 
Sinister's Avatar
 
Join Date: Dec 2006
Location: Pittsburgh PA
Posts: 430
Likes: 0
Received 0 Likes on 0 Posts
Sinister is on a distinguished road
Default

I go a little crazy with spark plugs, I used to replace mine every 20k miles no matter what...

the lesabre only has its second set EVER and I'm going nuts since I need to replace them lol

Thread Tools
Search this Thread
Quick Reply: how do you gap your spark plugs?



All times are GMT -4. The time now is 08:52 PM.