In a message dated 12/19/2005 11:36:34 AM Eastern Standard Time,
lors01@msn.com writes:
Rusty is the resident expert on failures on these things so a couple of
questions for him.
Were the connections on the end tanks welded on? I'm
wondering if the heat may have weakened the furnace brazed joints there since
the failures were always on the ends (I think). I noticed there is an
aluminum strap welded to the end tanks from top to bottom on some Harris
cores. Did yours have this? I am wondering if they are to resist
the expansion force trying to split the tank segments
apart.
The straps are to control expansion. I weld on the AN (dash 12 male) with
the cooler wrapped in a wet towel. I weld just 3/8" or so and then stop. The end
tank never gets so hot that you cannot hold on to it. I only tried the Harrison
cores.
I never had one leak outside of a stone hit.
Lynn E. Hanover