2010 - Volume #34, Issue #3, Page #36
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Thread Cleaners Clear Rust And Dirt Buildup
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"To clean the threads on a bolt, I use a hacksaw to cut all the way through one side of a nut so it will expand to fit onto the bolt. I screw it on using oil or WD-40 to lubricate. Passing the nut over the bolt several times is enough to clean off most bolts.
"To make a thread cleaner out of a bolt, I cut an æX' in the end of the threaded end of a bolt and use a file to taper the threads at that end of the bolt. Helps it slip into a rusted nut or engine fitting.
"I do the same thing to make a spark plug hole thread cleaner. Just cut off the electrode on a spark plug and cut an æX' in the threaded end, file it down a bit, and insert into the hole to clear it out."
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