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Carburetor Restoration - Frozen Shafts




Hi, I am a semi-retired automotive restorer (grew up fixing, or trying to fix, whatever broke before paying money for a new one) working on a 1950 single barrel carburetor that has two brass shafts inserted into one of two metal housings. One shaft is designed to pivot within a cast iron base and the other pivots within a "base metal", more fragile metal casting.

The entire carburetor had been left outside for some time and neither shaft moves at all. I started out trying PB Blaster penetrating fluid, sand blasted the parts clean, put them in a commercial parts cleaning machine at 175 degrees, submerged them for 10 days in "Sea-Foam" liquid penetrating fluid (a gasoline additive) with no results to date.

My next try is to use a heat gun [on eBay or Amazon] to get the temperature up to the higher 100s or to put them in a freezer (I don't think I want to tell my wife about that just yet).

The carburetor is in great shape other than the shafts are frozen, am I resigned to drilling them out and then making new shafts?

Thank you for your help,

Ted

Ted Lazenby
Hobbist car restorer - re-doing 1950 Chevy car - Sandy, Utah, United States
May 17, 2011




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