Any spark-plug readers in the house? |
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Any spark-plug readers in the house? |
SirAndy |
Apr 10 2010, 08:47 PM
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#1
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Resident German Group: Admin Posts: 41,688 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
Do these look OK?
I haven't been reading spark-plugs since my dirt bike racing days. On my bike, those would have indicated a slight lean condition. (IMG:style_emoticons/default/idea.gif) What about a 993 3.6L motor? Still too lean? Or OK? (IMG:style_emoticons/default/confused24.gif) Andy Attached image(s) |
charliew |
Apr 11 2010, 11:12 AM
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#2
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Advanced Member Group: Members Posts: 2,363 Joined: 31-July 07 From: Crawford, TX. Member No.: 7,958 |
I agree also the resulting condition is from probably a idle period that doesn't show the rich or lean condition at wot or under a good load condition where det usually occurs and could cover up the small specks from det unless you use a loupe or magnyfing glass under a good light. The additives in unleaded gas in the different parts of the country make plug reading a problem unless it is done on new plugs at wot or under a load and immediately shut off. The air cooled motor is way more critical than a water pumper because the head temps vary so much. The sniffer at various rpms would be the easiest way to get real information or a afr gauge in the car all the time. The four seasons in the country will mean the fuel properties change more than we can keep up with on pump gas.
I think reading plugs is for racers that change plugs regularly and only run race gas. |
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