Spark Plug Gapping Tool
- Thread starter motorcity
- Start date
- Status
Got one of these at autozone at the checkout counter....works fine....sure is handy!
http://i534.photobucket.com/albums/ee346/3dman7/mpg100119.jpg
http://i534.photobucket.com/albums/ee346/3dman7/mpg100119.jpg
Plugs nowadays are pregapped by the smorgasboard of manufacurers and to gently check them for consistancy is all that is nessesary. I feel an argument comming on
I always use wire type.
Originally Posted By: willix
Plugs nowadays are pregapped by the smorgasboard of manufacurers and to gently check them for consistancy is all that is nessesary. I feel an argument comming on
LOL! Spark plugs are pregapped but you still have to check them and regap as needed since the plug may fit a variety of cars all with different specs. I always gap plugs before installing. There are plugs (bosch +4 for example and some Iridiums) that you are not supposed to gap, however.
Plugs nowadays are pregapped by the smorgasboard of manufacurers and to gently check them for consistancy is all that is nessesary. I feel an argument comming on
LOL! Spark plugs are pregapped but you still have to check them and regap as needed since the plug may fit a variety of cars all with different specs. I always gap plugs before installing. There are plugs (bosch +4 for example and some Iridiums) that you are not supposed to gap, however.
Whatever gapper you use, never use one that prys against the center electrode to set a gap. The gapper with the "T" slot that grabs the ground electrode by itself is fine. Prying on/side loading the center electrode on the newer platinum/iridium plugs can cause all kinds of microfractures in the porcelain that cause problems after repeated heat/cool cycles.
On the older plugs with larger diameter electrodes, you can get away with a bit more rough treatment.
On the older plugs with larger diameter electrodes, you can get away with a bit more rough treatment.
Last edited:
I still check pre-gapped plugs because they could get dropped during shipping etc...
Any ways I have a very old champ plug gapper from the early 90s I still use today. I use it often in my jeep that I use copper plugs that are not pre-gapped.
Wire type is reccomended in my service manuals however.
Any ways I have a very old champ plug gapper from the early 90s I still use today. I use it often in my jeep that I use copper plugs that are not pre-gapped.
Wire type is reccomended in my service manuals however.
The Champion Silver Dollar is a classic,and is what I always use.
Originally Posted By: Colt45ws
I always use wire type.
Same here, bought it in the '70's.
I always use wire type.
Same here, bought it in the '70's.
I have both, but since have the car tuned up for me now, I use the gapper on the plug for the mower.
- Status