On my two earlier cars without petcocks, I would loosen the lower hose
clamp and work a short rod in between the hose and the tube allowing you
to decant the fluid into a container.
While you've got it all empty and working the water pump, you can remove
the radiator and install a drain. The rad in my '67 was toast so I
took the core from the '67 and the frame from the '69, combined them,
drilled a hole in the bottom, and JB Welded a suitable nut to it (a
flanged brass nut with pipe thread is best, but anything will work with
a little teflon), went to NAPA and got a draincock to fit. Works like a
charm. No leaks.
Unless, of course, originality is important.
Glenn
> Subject: [Mgs] Draining Radiator
> To: mg-mgb@yahoogroups.com, MG List <mgs@autox.team.net>
> Message-ID: <161933.65152.qm@web50907.mail.re2.yahoo.com>
> Content-Type: text/plain; charset="us-ascii"
>
> I need to drain the radiator on my '76 B as I have a squealing water pump
>that needs to be replaced. My particular
> radiator doesn't have a petcock (always like to try to work that word into
>conversation ;-) and I was able to use a
> siphon method to get about a quart of fluid out of the upper tank. But I
>don't know what the internals of a radiator
> look like so I'm not sure if I can sneak my tubing down further inside to
>siphon out more, or if I just have to remove
> the lower hose like I usually do and get coolant all over the place.
> --
> Be careful when you deal with old hippies. They can be real touchy.
>
> - Ferris Bueller
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