[AT] OT: Rosebuds! The oxi-acetylene kind...

[k7jdj at aol.com]

Google found this

"if you fish around on victor's website, you will find thier literature section.
 http://www.thermadyne.com/vec/literature/pdfs/057_65-2007.pdf

 From the chart a #6 MFA is 10/15 Oxy, 8/12 Acetylne in psi".

someone else said 4 Oxy to 1 ratio Acetylene.  For cutting with the larger tips I use about 7 to 10 pounds
acetylene and 30 to 40 pounds oxy.

Gary
Renton, WA

 

-----Original Message-----
From: Dave Johnson <webguydave at yahoo.com>
To: at <at at lists.antique-tractor.com>
Sent: Wed, Nov 13, 2013 9:37 pm
Subject: [AT] OT: Rosebuds! The oxi-acetylene  kind...


I'm pretty ok with cutting & brazing, but have never used a rosebud to heat 
something, and my experience today has me scratching my head.
The project at hand is freeing up a cast iron wheel hub, stuck on a keyed 1" 
shaft. This is on an old Gilson / MW garden tractor transmission.... the idea is 
to liberate a set of 4 of these hubs to make dual adapters for use on another 
tractor with a FEL.

 I have soaked it for quite some time and have a puller tensioned on it, but 
it's not moving... so now it's time for a little heat.

I bought a new victor 8-MFA rosebud and lit it off as I would the torch, but 
when I try to get a blue flame, it flames out with a pop!

What's going on here? Do I not want a hot blue flame, or do I simply need to 
feed a lot more of both gases to the torch? Or??  Any insight into these things 
would be appreciated!

   btw, I'm on digest, so it'll take a day for me to respond (:<((


Dave in Gilroy, CA
webguydave at yahoo.com
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