Thread: Question about reading plugs
10-06-2007, 06:56 PM #1
Question about reading plugs
Can someone point me to the post about reading the side (grounding) electrode. I tried plug chops today with brand new plugs but I'm not quite sure what to make out of the results.
Last edited by Tony; 10-06-2007 at 09:20 PM.
10-06-2007, 11:26 PM #2
Hi,purely from my experience,you should use old plugs,plugs that have some color to them.You will be amazed by how quickly they change color accocding to tuning changes made. It's the center electrode/porcelain you need to watch.Not sure of the post,Tan is good,white=lean,black=rich. I hope that helps
10-07-2007, 12:02 AM #3
Stupid spark plugs. Just about the hardest thing to take a pic of. anywho
I believe this is what you are talking about. I can't remember who started it, but I think it was Beer. They had stated that you could get a rough wash reading from your plugs. You still want to go by you plug coloring, but you can actually see a line on the side electrode. If my memory serves me right you want the "wash" line about the middle of the curve.
Hopefully someone else can find the thread that had this info in it. Anyone???
10-07-2007, 01:35 AM #4
casey67 Yeah, I know about checking the center electrode for color. I was useing new plugs so I could check for a burn pattern on the grounding electrode, something thats hard to do on used plugs.
jonjonwells I was thinking it was either beer or pho2craft but I'm not certain if it was either of them. I thought the original poster stated that this was actually a more accurate method of reading plugs. If the very end was "1" and the end closest to the threads was "10" I was getting somewhere between "6" and "7"...about halfway between the curve and the threads. I just don't remember if the original poster said you should be closer to the middle or closer to either end.
10-07-2007, 02:37 AM #5
- Join Date
- Oct 2006
- Cleveland OH
It was Ph20, but I can't find it anywhere using the search.
10-07-2007, 03:04 AM #6
- Join Date
- Sep 2006
i say you need to take the domes off , the spark plugs are nothing to go off of unless your running extremly rich or have no compersion ,
10-07-2007, 04:56 AM #7
10-07-2007, 07:14 AM #8
Last edited by Tony; 10-07-2007 at 07:18 AM.
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