- Sep 11, 2005
- 67
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Hey guys i posted on www.tccoa.com, and i want to get your thought/experiances on this.. I got a 95 4.6 V8 thunderbird, and today i pulled all the plugs to see what condition they where in after 5k miles, they are Autolite single platinum AP764 which i gapped to .056 (stock is .052-.056).. I pull each one and to my surprise they where all basically brand new, a slight bownish tint..which is normal. I regapped them at .053 for a stronger spark (this i was told will help my hesitation/pop noise from the exhaust under light throttle over 25mph) and put em back making sure they had dielectric grease/anti sieze etc.
Oh boy, here's the fun part. I connect the battery, start her up.....POP-PADA-POP-PADA-POP-PADA..sounds like a dragster. I shut it after 10 seconds, and look under the hood....................i see a boot and plug ejected from the head. Thanks god the boot is all fine, but the plug had a badly crushed electrode. I go to autozone to replace the one plug, and all is fine now. I'm so happy the threads didn't strip the head, cause that's a majr pain getting on of those heli-coils in there.
I'm still bugged at the fact that i did everything textbook, made sure everything was fine, tight, making sure not to cross thread etc etc....and this plug blew out..? I still cannot fathom how this happened.
PS, how long do you think these plugs should last..? I only replaced the one today cause honestly i'm broke, does changing one, and leaving 7 others in with 5k miles on them hurt any..? This is the last time i change plugs myself...lol...i'm gonna stick to what i know...car audio..
Oh boy, here's the fun part. I connect the battery, start her up.....POP-PADA-POP-PADA-POP-PADA..sounds like a dragster. I shut it after 10 seconds, and look under the hood....................i see a boot and plug ejected from the head. Thanks god the boot is all fine, but the plug had a badly crushed electrode. I go to autozone to replace the one plug, and all is fine now. I'm so happy the threads didn't strip the head, cause that's a majr pain getting on of those heli-coils in there.
I'm still bugged at the fact that i did everything textbook, made sure everything was fine, tight, making sure not to cross thread etc etc....and this plug blew out..? I still cannot fathom how this happened.
PS, how long do you think these plugs should last..? I only replaced the one today cause honestly i'm broke, does changing one, and leaving 7 others in with 5k miles on them hurt any..? This is the last time i change plugs myself...lol...i'm gonna stick to what i know...car audio..
