5 years on a repaired rad isn't bad. As the rad pressure cycles end tanks
and tubes expand and contract. The flexes the brass and causes localized
hardening that results in cracking. The only long term solution is a new or
less used rad.
I have a rad for a power unit ( 1.6L Kent 4 cyl, Brit content) that is
corrosion free but has 12 or more cracks on the top tank, rad shop says not
worth fixing. I might fix it with plumbing solder anyway since the target
application is a back up generator and heat cycles would be limited to a few
per year.
For the short term, JB weld or similar high temp epoxy ( usually gray) is a
good choice. GM recommends epoxy repair for alunimum rads, might be worth a
trip to the parts counter. I suspect the home center store epoxy won't have
the temprature rating needed for a cooling system, check the label.
Harold
In a message dated 02-08-23 02:23:03 EDT, gimmeagig@yahoo.com writes:
<< Hi,
I have a TR4 with the long neck radiator.Around the
neck is a small crack.I had the radiator rebuilt about
five years ago at which time this particular area on
the radiator was really bad.I tried to replace it with
a TR4 A radiator that did not have the filler neck but
it would not fit.Thats why I had the old radiator
rebuilt.It was pretty expensive and lasted only 5
years.
I don't want to have to take the radiator out to have
it rebuilt again and I'm looking for a shortcut.
Is there any kind of putty available that I could just
apply to the area that might seal it and prevent it
from cracking further?Or have aftermarket radiators
become available that would fit my 62 TR4.
Also I am now on my third exhaust manifold they all
develop cracks after a few years.
Are these cracks fixable or preventable or do I need
to keep buying new manifolds every 3 years?
Should I just have a header made or are they prone to
cracks as well?
Thanks
Roxy >>
/// triumphs@autox.team.net mailing list
/// or try http://www.team.net/cgi-bin/majorcool
/// Archives at http://www.team.net/archive
|