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MG TD TF 1500 - Summer Heater!

I have been picking your brains on my heater install for several months now. Just in time for Summer I have it just about done! I added several pictures to my restoration site today for you guys to check out. I appreciate all the help as always.

direct link to my accessories page:

http://home.comcast.net/~rrking13/mgaccessories.html

Link to the main page of website:

www.mgtd.co.nr

you may have to copy and paste into your browser, I am not sure.

Thanks guys,

Rich
Rich King TD 8732

Nice work. You'll have the whole summer to fix leaks and track electrical problems :)
Thanks for the pix... this kind of help is invaluable! I've bookmarked it for when I need to work on my heater - something I've yet to look at!
Geoffrey M Baker

Nice work. You'll have the whole summer to fix leaks and track electrical problems :)
Geoffrey M Baker

Hi Rich, I've been studying your beautiful pictures, how does the original bypass fitting work, the flow and return pipes come from the same area if I understand correctly, although it's way past my bedtime and my mind is probably getting addled!
CJ Harvey

Had one minor leak but it is already fixed. Electrical problems? Never! Lol actually I toasted the rheostat switch already by hooking it up wrong and had to pull the regulator out for repairs because of the way I hooked up the switch. My fault though, live and learn!

CJ the bypass fitting has a plug between the inlet and outlet hose. So basically it is the same as the rubber hose that would have been there but it is much longer with the heater in the middle. Hope that makes sense?

Hope the website helps others, that is why I did it!

www.mgtd.co.nr

Rich
Rich King TD 8732

Rich,
Nice installattion! Did you put a small hole in your new plug? If not, look down the original fitting. It will serve as a mini bypass when the heater is valved off and thermostat is closed.
JIM
JRN JIM

Jim,

This is the first I have heard of this. Is it a must?

Thanks,

Rich
Rich King TD 8732

Rich, I like that bypass fitting, I'm wondering if someone makes them?
CJ Harvey

That bypass fitting has been a standard part of Arnolt heaters for at least 60 years. Bud
Bud Krueger

Rich,
I dug out an old fitting, can't say for sure if it is genuine Arnolt, but there's no hole. I believe there's another buried somewhere. Someday it may surface, but I weem to recall Arnolt bypass fittings with a small hole. Not that important.
The original thermostats with a sleeve, new thermostats without the sleeve, the bypass circuit, a bypass gasket with 1/8" hole, etc. are subjects that fill the archives.
The issue of going without a weep hole is there will be negligible circulation when the thermostat is closed AND the heater circuit is valved off in hot weather. The heater circuit serves as a good bypass to afford circulation of hot coolant within the engine and past the closed thermostat as it heats up.
The hole is not a bad idea, but the engine can live without it.
JIM
JRN JIM

CJ,

I found my bypass fitting some years ago on ebay. Over the last year I was given Ben Cordsen as a contact for restoring these heaters. He has been of great help. I would be willing to bet he sold the bypass fitting to me years ago, but I just didn't know it at the time. I bet he could hook you up.

Cordsen Design Studio 2849 Dunbar Avenue FortCollins, CO 80526-2265 970-229-0891 Ben Cordsen - Arnolt Heater restorations www.CordsenDesign.com

Hope this helps,

Rich
Rich King TD 8732

This thread was discussed between 14/06/2014 and 21/06/2014

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