On Sat, 16 Oct 2004 23:21:46 -0500, Josh Battles <josh@omg-stfu.com> wrote:
>
>> I don't know if this did more harm than good, but it did work. I saw a guy at a transmission shop use a blow-torch to heat the end of the drive shaft. Once the metal was heated (not enough to warp it I don't think), but just enough to get it hot, he just tapped it with a regular nail hammer a couple of times and it came out like it was packed at the factory with butter.
>>
>> I was glad that it wasn't my car, but the guy was working it like it had done it countless times. And, it did work.
>
> The only issue with this is that by heating, you can change various properties of the metal. You can possibly remove any tempering that was done to the material in the past.
>
> We learned about this last month in my metallurgy class. If you're really interested, I can explain what it does on a molecular or crystalline level.
>
can you tell us just how hot you'd have to get it?
My assumption has always been that you're pretty safe from property changes if you keep it cooler than a cherry glow
-- Mike Maskalans <http://mike.tepidcola.com/dodge/> '98 Dakota SLT CC, 318/46RE/231, D44/Sterling 10.25, 4.10s, 35s on Humvee rims '84 RamCharger Royale SE, 360/727/208, stock, 3.21s, 32s
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