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Old 01-01-2023, 05:01 PM   #12
nkaminar
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Join Date: Jan 2012
Location: Western North Carolina
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Default Re: Coolant weep around head nut

If you are rebuilding an engine, use a bottom tap to clean out the threads in the block. Blow out the crap with high-pressure compressed air gun. A dental pick, available at auto parts stores, can also be used to clean out the bottom of the hole.
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