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) |
ghuff |
Apr 16 2010, 12:56 PM
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#2
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This is certainly not what I expected down here. Group: Members Posts: 849 Joined: 21-May 09 From: Bodymore Murderland Member No.: 10,389 Region Association: MidAtlantic Region |
That is too lean and possibly too hot of a plug for your app...
Better pictures are needed. Can you get some macro shots of the insulators and center electrode? If those came from a turbocharged or supercharged motor, I would be very concerned, or something with a lot of compression and timing....... You can get away with lean in certain instances, I'm also assuming your 993 motronic has multiple piezo's picking up any knock. Does your motronic have misfire detection at all as well? Is the car missing at all? I do not know what air cooled motors like mixture wise, but too lean = higher egt's, more heat, etc.... This all may be worthless, I do not do air cooled stuff, and do not know what they tolerate. But anything I own, that would be cause for concern. |
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