Chris Green wrote:
I know this is a bit of a 'how long is a piece of string' question but
I need some sort of way of working out what gas brazing torch I need
to do something.

I want to fix a small crack in a transaxle casing from a mower, the
casing is maybe 8" in diameter and made of 1/8" thick (or a little
thicker) aluminium.

I have a "laser 4707" aluminium brazing kit and my trial on a bit of
1/8" thick aluminium angle worked pretty well (I'm used to soldering
and welding so something sort of half-way wasn't too difficult). I
did that with a Bernzomatic TS2000 torch which I bought a long while
ago for odd plumbing jobs.

However the Bernzomatic TS2000 won't get the transaxle casing hot
enough, it's fairly close but not enough to get the material to 'tin'
nicely.

So, would a bigger/better torch which uses the same gas canisters as
the TS2000 be enough. The Bernzomatic site seems to suggest that the
TS4000 (which Screwfix sell -
https://www.screwfix.com/p/bernzomat...ng-torch/71976)
is quite a lot beefier than the TS2000 and it can use the MAPP gas
bottles which are also hotter I believe.

Well, I bought one of these, partly because it was cheap, partly
because it coud be delivered on Sunday (it was) and partly because the
reviews seemed mostly OK.

https://www.amazon.co.uk/Dickie-3617...s%2C166&sr=8-1

.... and it's *excellent*. It's way hotter than my Bernzomatic TS2000
and did the job I needed on my transaxle with no problems. I'd also
recommend the "laser 4707" aluminium brazing kit, I found it really
quite easy to braze neatly over the crack.

--
Chris Green
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