Dime Size Heat Shrinking Metal With Oxy/Acetylene

[rondesign100]

be good to remove the paint first and how the hell can you planish when bonnets closed with out a flipper or dolly after. no mentin of heating the lowest spot to cherry red and no mention of dont let the tip of the flame touch the bonnet or it will harden the metal to much , mind you that flme what was that

[omyajt]

Do you heat the high side or the low side...or does it matter?

[ButlerCollision]

@omyajt heat the most stretched part of the repair area. Heat the high area, which will lower as it shrinks. If it starts to sink in you may need to support backside with dolly to lock metal in place.

[omyajt]

This technique will come in handy to repair maple sugaring pans. Mineral build up at the end of a day of boiling eventually pops off in a little round bullet and the syrup quenches the spot creating an oil can. Good video. Thanks.

[ButlerCollision]

I don't think a heat gun would target a small enough area or get hot enough. If you don't have a torch, you may can do it with a hand held propane torch that you can get from walmart. Also, if you have a stud nail gun, you can use that for heat shrinking. There is a tip used for shrinking that you can out in the stud gun. 

[americanhotgirl]

can you use heat gun to burn it? if i dont have oxy /acetylene?

[lemontier]

You should the proper way to open the oxygen and acetylene regulators so you don't teach others the incorrect way. Turn the regulator screw out first then open the cylinder valve, then screw in the screw to get the pressure you want. many people do it wrong and ruin their regulators.