It is possible that they might have used some low temperature braze rod. Have
to admit that I somehow doubt they used silver solder, because it has a high
pure silver content and a price to match.
MG accountants would never sanction that!
Having said that, brazing these fittings is easy if you have the experience
and skill, and it is a much easier production process to produce many
identical items in sequence on a dedicated jig set up as production line by a
capable brazer, than it is to set up one in a vice (or propped up against the
coffee cup and a wrench) as we amateurs tend to do for a one off job.
Clive
=================================
----- Original Message -----
From: David Lodge
To: Clive Sherriff ; Dave and Liz DuBois
Cc: mg-t@autox.team.net
Sent: Saturday, June 12, 2010 5:17 AM
Subject: Re: [Mg-t] Gas line replacement
Hello Clive and all,
I find this interesting because on the TC it would seem that all brass
to copper joints are brazed, e.g. carb overflow pipes, oil line from block to
head, lines to and from filter, etc. Explanation?
Regards, Lodge, TC 1704, in dreary Vancouver
--- On Sat, 12/6/10, Dave and Liz DuBois <ddubois@sinclair.net>
wrote:
From: Dave and Liz DuBois <ddubois@sinclair.net>
Subject: Re: [Mg-t] Gas line replacement
To: "Clive Sherriff" <clive.sherriff@ntlworld.com>
Cc: mg-t@autox.team.net
Date: Saturday, 12 June, 2010, 4:21
> You can braze, but the silve solder has a lower melt point than
brazing rod and you are less likely to melt the end fittings.
Since brazing requires heating the surrounding metal to a
temperature that will melt a brass brazing rod, the brass nipple will melt at
the same temperature. This is a case where silver solder would be the
material of choice (I have always used straight plumbing grad soft solder and
have never had a problem.
> Dont forget to put the nuts on the tube, and the right way round,
before fitting the nipples!
Now who would ever be dumb enough to forget that :-[
Kind of reminds me of the job I had back in the dark ages right
after I got out of the Navy assembling electronic photo flash units. These
were the big studio units that used Amphenol connectors to attach the lights
to the power supply. Said connectors had a screw on ring to secure the plugs
in the sockets and I was forever getting the connectors completely soldered
and assembled, only to find the securing ring still on the bench. I finally
made a concerted effort to always remember to slide the ring into place BEFORE
soldering the wires in place and assembling the plugs. After much work and
concentration on my part, I got it right every time I assembled the plugs,
only to have the boss come around a bit later and say, "you know, those
securing rings are really not necessary on thee plugs, just leave them off
from now on" :'(
Cheers - Dave
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