Reply With QuoteUsually #5 and # 6 will show the most heat. Not always but the best ones to check. If you read plugs the way I do.....makes no difference if you idle or cut it clean. You are reading cad burnoff.
Hay buddy,
My question is regarding a plug check. After making a WOT pass, shuting down and coasting to a stop, do you usually check all your plugs or just one or two? If only one or two, are there certain cylinders that give a more accurate reading for one reason or another?
Thanks,
Usually #5 and # 6 will show the most heat. Not always but the best ones to check. If you read plugs the way I do.....makes no difference if you idle or cut it clean. You are reading cad burnoff.
I have been looking at the color. Do you have any good photos that show the cad burn off.
These are alcohol but still looking at the same thing:
Picture #1. Ground strap heat only. Base cad not burned off. No insulator spotting. Dead Fat.
http://www2.***boat.com/image_center...0/3745-med.JPG
Picture #2: About 1/2 the base cad burned off. No spotting. Still fat but better.
http://www2.***boat.com/image_center...0/3743-med.JPG
Picture #3: All the cad burned off. About as far as you need to go.
http://www2.***boat.com/image_center...0/3741-med.JPG
THIS IS ONLY FOR NKG PLUGS. Standard disclaimer applies. :messedup:
Fiat48,
Thank you very much for those photo's, a picture is worth a thousand words.
Can I expect the same results on the plugs when running race gas vs. you running alcohol?
Yes. The plug insulator may be darker and you may have to wipe a light soot from the plug but cad burns all the same. You may have to do a few runs to get cad burn unblown also.
use some brake cleaner to wash the soot off of plugs when running gas---will not remove discoloring on plug or remove any cadium----just cleans it up so you can see how much cadium got burned----NGK plugs
use some brake cleaner to wash the soot off of plugs when running gas---will not remove discoloring on plug or remove any cadium----just cleans it up so you can see how much cadium got burned----NGK plugs
Blown Gas tuneup: NGK 6 or 7 heatrange. Lean it or bump the blower till it saws the ground strap. Fatten it 10 and go to cold plug. :squiggle:
Ever do that?
Thanks for the tips guys.
Lean it or bump the blower till it saws the ground strap. didn't get quite that aggressive, but yeah, that's about what we did :jawdrop:
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