The Stovebolt Site Forums The Shop Area Interiors 1955.1 3100 heater capillary tube proper location

I am looking for a good picture of the tubes proper location.

Thanks in advance for your help.

Brad Allen has a lot of origional pictures and new instructions here’s a picture from his album.

It’s like a short wood screw which only goes into the cardboard firewall cover. These were all
Installed at dealerships so who knows if they were all put in the same place.
There may be an installation instruction pamphlet in Brad’s album.

I think the accessory installation guide may actually give measurements.

Thanks for all the input, but....the accessory guide is unclear to me at best, I was hoping for a clear head on picture to show me the way. Thanks again for any help you can give.

After a little searching through our Search the Site resource, I think this web page Jim Carter 1953-55.1 recirculating heater article has some pictures that may help answer your question. I found the link in this early thread on the topic.

You may need to grab the pic in a new window and zoom in to get a larger view as the pictures in Jim Carter's page aren't a separate linked page.

Hope this may help.

The Carter pictures are the best ones I have seen. The manual says on page 37 figure 99, "It is important that capillary & clip be located on dash bulge according to dimensions shown. How important is that really?

Thanks to everyone!!!

Just my $.02 worth on the subject, but I think the point of mounting the sensor on the hump and only attaching the clip and screw to the "dash mat" is to allow the sensor to most accurately sense inside cab temps. The dash mat keeps the bulb from getting influenced by exterior air temps from the metal firewall panel. Same thought on the mounting clip and screw. The screw not penetrating to the metal firewall panel, keeps it from being a path to transmit the temp of the firewall. That heat/cold transfer would confuse the bulb into think the interior temp was either too hot or too cold and effect the function of the heater control.

Make sense???

Very much so, thanks

Here you go