I've watched a lot of videos during the Pandemic. I've been waiting for an opportunity to try this.

The 409 engine in the Bel-Air I'm working on had some very stuck exhaust flange bolts. I tried a to loosen them with just Liquid Wrench. I tried heating the surrounding cast iron to cherry-red. Nothing. I waited until the wax didn't evaporate on contact. I could watch it pool at the base of the bolt and then disappear. Using a cam-operated stud extractor they came out with far less effort than I imagined.

Officially astounded.

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