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12-12-2004, 05:48 PM
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#9 |
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Registered Member
Join Date: Nov 1998
Location: Houston, Tx.
Posts: 3,887
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Re: Seriously rusted plugs
Heat does cause expansion to both the plug and the head spark plug hole. What helps removal is the fact that the encircleing threads in the head expand more than the plug itself. That difference in the rate of expansion is what helps removal.
I would still try the penetrating oil first to try and get the plugs out. Be sure to get any grease off the engine before doing any heating though. You don't want a fire. Rev
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'66 Coupe, 306, 350-375 HP, C-4, 13.07 e.t., 104.8 mph, 1/4 mi. O.B.C. #2 '66 coupe |
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