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Registered
Join Date: May 2004
Location: Central Coast California
Posts: 1,299
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preheat
After you clean the aluminum for welding, you can put a little carbon soot from your acetylene torch burning with out oxygen, near the area to be welded. Then preheat with the rosebud on the oxy/acetylene. When the black of the soot goes away, you are just below the melting point of the aluminum and it's time to weld.
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'68 911 2.2 "E" PMO Carbs, Electromotive Crankfire Ignition, Adjustable Spring Plates, turbo tie rods, Bilsteins, headers, MB911 muffler...
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