 spark plug gap closed on two plugs, what causes this? |
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| siverson |
 Jun 13 2016, 09:23 PM
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#1
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Advanced Member  Group: Benefactors Posts: 2,451 Joined: 5-May 03 From: San Diego, CA Member No.: 654 Region Association: Southern California 
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hi - quick question from the garage. cdi box died on my six. got replacement and car starts right up (good). but runs like crapola right away. pulled the plugs and on two the electrode (term?) is no touching the plug.
is this why my cdi boxed died? or is this a result of it dying? or? plugs were 1k miles old. cdi box was 46 years old. |
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| nine9three |
Jun 13 2016, 09:42 PM
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#2
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Member Group: Members Posts: 142 Joined: 29-December 11 From: Oregon Member No.: 13,946 Region Association: Pacific Northwest |
The only thing I know that would cause this would be the wrong plug (thread body too long). Your pistons are making contact with the plugs. Bad deal.
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Posts in this topic
siverson spark plug gap closed on two plugs Jun 13 2016, 09:23 PM
siverson 914 Jun 13 2016, 09:24 PM siverson 914 Jun 13 2016, 09:25 PM stugray Cyl touching? (Does it have High CR pistons? does ... Jun 13 2016, 09:40 PM veekry9 (Pelican Pix)
They can look as bad as this before... Jun 13 2016, 10:34 PM
nine9three
Carbon buildup on the pistons are usually the cu... Jun 14 2016, 10:12 AM brant You missed a shift or most likely over revved it o... Jun 13 2016, 11:07 PM r_towle I'm very unclear on how a mis shift or over re... Jun 14 2016, 09:00 AM brant on a -6 with high compression and high lift cams t... Jun 14 2016, 09:24 AM r_towle
on a -6 with high compression and high lift cams ... Jun 14 2016, 01:08 PM Luke M I would check to make sure those are the proper pl... Jun 14 2016, 09:33 AM Frankvw Mmmmm interesting topic.
but to be honest...I am r... Jun 14 2016, 10:36 AM brant
Mmmmm interesting topic.
but to be honest...I am ... Jun 14 2016, 10:40 AM siverson Interesting, thanks for the feedback.
I don't... Jun 14 2016, 12:16 PM brant
Interesting, thanks for the feedback.
I don... Jun 14 2016, 12:24 PM siverson New plugs.
-Steve Jun 14 2016, 12:18 PM siverson In there now.
-Steve Jun 14 2016, 12:19 PM stugray Engine parts DO flex.
The greatest stress in an en... Jun 14 2016, 01:04 PM |
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