[DeTomaso] Cleaning rust out of the console heater tubes
Tomas Gunnarsson
guson at home.se
Fri May 8 03:09:50 EDT 2009
I looked into this a couple of years ago and found this:
The tubes are kept in place inside the console by one or more welded
brackets. These brackets allow a small amount of wiggling around but
require cutting up the center console to release the tubes.
At least one of the tubes makes a couple of rather sharp turns inside
the console just in front of the firewall. I think this is to make the
tubes run one above the other instead of side by side as in the rear
exit position. This makes it harder but not impossible to push or pull
something through the tubes. The tube bends also distort the tube
slightly from a round cross section it seems, again making it harder to
push something through.
I was always annoyed by the diameter mismatch at both ends of the tubes
as neither the heater connections nor the engine connections are the
same diameter as the tubes. I pushed an 8 mm ID hose through the tubes,
made step-down adapters for the heater end of the hose and got new
smaller hose nipples for my shut off valves and now have wonderfully
compliant heater hoses, no heater tube rust issues and all the heating
capacity I need. The original size tubing is way oversized capacity
wise.
Tomas
<-----Ursprungligt Meddelande----->
From: Art Stephens [artstephens at verizon.net]
Sent: 8/5/2009 9:08:04 AM
To: Mike Thomas; detomaso at realbig.com
Subject: Re: [DeTomaso] Cleaning rust out of the console heater tubes
Hello Mike,
Here are some thoughts. How about replacing the old lines with some
new stainless ones? How about finding a way to flush the lines with a
garden hose? You could at least keep the initial crap out of the
radiator
that way. What about using a vacuum? I guess with a vacuum, you run some
risk of sucking some of the crap from one line into the system? Another
alternative would be a filter or maybe one on each line near the
radiator
just to make sure you don't get the wrong line.
Art
----- Original Message -----
From: "Mike Thomas" <mbefthomas at comcast.net>
To: <detomaso at realbig.com>
Sent: Thursday, May 07, 2009 9:56 PM
Subject: [DeTomaso] Cleaning rust out of the console heater tubes
> I've finally removed my heater valve to rebuild it, and after not
having
> any
> fluid in the pipes under the console for a long time, there is a fair
> amount
> of rust flake. I want to avoid getting that flake into my cooling
system
> and compromising my new radiator, so the question is how to try to
clean
> up
> the inside of the pipes before I put the valve and new hoses back on
and
> fill the heater system.
>
> I've thought of devising some kind of long wire pipe cleaner that I
can
> run
> the length of the pipes, but access at either end to get it in and
work it
> is a bitch. I'm not sure flushing it with water will do as much as the
> hot
> water coming through the system.
> I wonder if just forcing a length of course hemp rope through and
working
> it
> will do the trick, then running water through.
>
> I'm looking for suggestions. I realize I kind of screwed myself by not
> keeping fluid in the pipes far the last few years. The pipes seem to
be a
> pretty stout steel, so I'm not too worried that they've rusted
through.
> Guess I'll find out though.
>
> Thanks in advance.
>
> Mike Thomas
>
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