Macbeast
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| posted on 26/7/07 at 12:41 AM |
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Brazing ?
Not wanting to get into welding kit expense, I seem to recall that you can do brazing with the higher temperature gas cannister torches.
Would this be ok for sump shortening and moving oil filler neck on rocker cover ?
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big_wasa
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| posted on 26/7/07 at 05:42 AM |
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If you have an arc welder I have a Brazing atachment that you can have
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designer
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| posted on 26/7/07 at 06:20 AM |
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Brazing is OK for this.
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britishtrident
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| posted on 26/7/07 at 06:29 AM |
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quote:
Originally posted by designer
Brazing is OK for this.
Yep More than OK for this type of job.
Silver solder is also fine.
With both processes everything needs no be prpoperly cleaned before you start, and use the correct type of flux --- usually Borax powder flux or
coated rods.
However brazing or silver soldering a large work piece using a MAP gas blow lamp isn't really on as the they don't give concentrated heat.
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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caber
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| posted on 26/7/07 at 07:09 AM |
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How can anyboby who messes with cars not have a welder these days!Go on get yourself a MIG set or even better a cheap Chinese TIG set, you will be
amazed how much you will use it, and how many new friends you get who just need a quick patch on something or a lwnmower handle fixed!
Caber
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Macbeast
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| posted on 26/7/07 at 07:15 AM |
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TY all.
Caber, I'm coming up to Scotland next month. I'll bring the lawnmower handle, OK ? 
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mookaloid
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| posted on 26/7/07 at 08:00 AM |
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I fixed a mates lawn mower handle with a blob or two from the mig a couple of weeks ago
"That thing you're thinking - it wont be that."
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David Jenkins
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| posted on 26/7/07 at 08:06 AM |
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quote:
Originally posted by britishtrident
Silver solder is also fine.
<snip>
However brazing or silver soldering a large work piece using a MAP gas blow lamp isn't really on as the they don't give concentrated heat.
Silver solder really needs a special flux for best results. It's also finnicky about the cleanliness of the area to be joined - it's got
to be spotless. Finally, it's bl**dy expensive!
A friend brazed the bottom of a sump for me, but oxy-acetylene was required, to get enough heat into the joint area without overheating the whole
sump. The metal has to be heated to bright orange for brazing, and that's not easy with a conventional gas torch!
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Peteff
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| posted on 26/7/07 at 10:01 AM |
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quick patch on something or a lwnmower handle fixed!
Anyone on here not fixed a lawnmower handle in the last month please leave the forum I did one 3 weeks ago. I used my old Portapack to put a patch
on the van the other day as well. I definitely could not cope without a welder of some description. If you want to use Wasa's brazing attachment
there's an old oil cooled arc welder in the shed here.
yours, Pete
I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.
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David Jenkins
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| posted on 26/7/07 at 10:30 AM |
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I replaced the blade on my lawnmower last week, but that involved a spanner, not a welder.
Does that count?
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iank
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| posted on 26/7/07 at 10:30 AM |
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FWIW you can braze with a mig welder - not that that answers the original query 
http://www.mig-welding.co.uk/brazing.htm
p.s. for the pedantic he's really talking about bronze welding not brazing, but the terms tend to get commonly confused. Caged seem to use this
for putting together Caterham chassis.
[Edited on 26/7/07 by iank]
--
Never argue with an idiot. They drag you down to their level, then beat you with experience.
Anonymous
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lsdweb
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| posted on 26/7/07 at 11:43 AM |
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I dropped a valve (actually the seat fell out) on my lawnmower last week - a few days before bending 12 valves on the race car. I have to fix both so
does that count??
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graememk
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| posted on 26/7/07 at 12:04 PM |
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i ran over a garden light with the mower the other sunday.
not that its anything to do with brazing
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awinter
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 posted on 26/7/07 at 12:46 PM |
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Ill get me coat
I don't have a mig or a lawn mower.
Can I stay?
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iank
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| posted on 26/7/07 at 12:55 PM |
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My lawnmower isn't used enough to break a handle.
It's also only got an electric motor <oh the shame> and plastic blades <sob>
--
Never argue with an idiot. They drag you down to their level, then beat you with experience.
Anonymous
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David Jenkins
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| posted on 26/7/07 at 01:23 PM |
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quote:
Originally posted by awinter
I don't have a mig or a lawn mower.
Can I stay?
Sorry, no.
We do have standards to maintain...
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Peteff
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| posted on 26/7/07 at 02:47 PM |
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p.s. for the pedantic he's really talking about bronze welding not brazing,
No I think he means brazing in the true sense of the word, he's joining two bits of plate not building his chassis.
Here is a bit of a guide.
yours, Pete
I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.
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