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Old 01-16-2013, 07:33 PM
cadillacdave1 cadillacdave1 is offline
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As far as half the porcelain showing, is it possible that the plug is not facing the exhaust valve? When installing the plugs change them around so the strap is open slightly toward the exhaust valve. If it is totally facing the intake you may get the symptom you are describing.
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