02-22-2010, 07:20 PM
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Senior Club Cobra Member
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Join Date: Sep 2000
Location: Holderness, NH, US of A,
NH
Cobra Make, Engine: CSX 4772 old iron FE
Posts: 5,499
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Not Ranked
Dan there's a small frost plug I think it's 3/8 that will just tap in from the outside with a little goop on it.
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