I wouldn't trust anything but silver solder - braze it with oxy-acetalyne.
This also demands pretty tight fitting tolerances.  Clean joints and flux,
and you should be good.

Randy Bergum
1990 Carat

> [Original Message]
> From: George Goff <THX0001@AOL.COM>
> To: <vanagon@GERRY.VANAGON.COM>
 > Date: 10/16/2002 4:04:08 AM
> Subject: ??? Solder Joint Design ???
>
> I am fabricating a couple little doodads for my van's cooling system.
Sounds
> like a recipe for disaster, doesn't it?  Since the joints will be
unstressed,
> I intend to use SOFT, silver bearing solder.  Does anybody know what kind
of
> a fit, i.e., amount of gap, is needed in a socket to make a proper solder
> joint?  The material is brass and the tubing OD is about 3/8" (10 mm to
you
> younger guys).
>
> Thanks to one and all,