"Do It Yourself" Oven Safety Valve System

THANK YOU Stoveman!!! I really do appreciate all your help here.

I was worried, but I'm feeling good again. I'm going to call Patriot Supply and order the thermocouple right now.

I'm getting closer to actually cooking. Wahoo!!!!

-Jenn

OK, I think we have tied down the major parts. Let's go on to plumbing the Safety System. Here is a drawing of the connection for the Pilot tube to the Safety Valve:


http://static.flickr.com/33/88388466_329f8a73e8_o.jpg


Now here is where I think we will deviate from the Original Safety System. Chambers made the pilot tubing connection by adding a Tee between the Gas Manifold and the Pilot Filter. I feel that the original pilot tubing is very delicate after 60 years of use and should not be disturbed any more than neccessary. The connection I use will not disturb the original pilot plumbing. What I have done is add a 3/4" Black Tee between the input end of the Gas Manifold and the pipe or flex tube that connects your stove to your house gas. Here you will need a Black 3/4" Pipe Tee, a Brass adaptor that has 3/4" male threads on one end and a 1/4" compression fitting on the other, and about 5 feet of 1/4 inch pilot tubing. These should be available at your local hardware or plumbing store. I got mine at Ace Hardware.

Today I went to storage and removed the Original Safety Valve mounting bracket from a spare Model C. Here is a diagram of the bracket:


http://static.flickr.com/26/88779350_118ffddeaf_o.jpg


This bracket mounts the safety Valve to the floor of the service cabinet, centered left to right, about 6" from the front.

Sam, I know you're really busy, but I would really appreciate some more information. I got started on this project thinking there would be more instructions about how to finish it, but now that I have the parts in house, there have been no new posts.

I'm completely stuck and could use some pilot plumbing instructions.

I am just not seeing how the pilot I have (1880-100) can work in this application. It is the proper part number, and it looks just like the one in the C service manual, but it is too tall and too wide. It won't fit through the original holes in the oven floor, and it doesn't come apart like the original, so it won't fit where the original sits.

The only way I can see it working is to bring the pilot tubing into the oven, bend it around, and then attach the pilot horizontally, but there really isn't enough room for all that within the confines of the oven burner. Plus, it would be a real mess, and I don't think it would be too smart to run pressurized gas lines in an oven, either.

The other option would be to enlarge the hole in the oven floor, but there's no way to anchor it in place and still have the pilot shutter be able to draw air.

What am I missing?

If Sam isn't around, is there any other board member that's completed this project and can help me? My stove has been sitting in pieces, just waiting for this system for weeks now, and it's quite disheartening. I really don't need a piece of green furniture...

This is a picture of the original pilot installed in the oven, with the new pilot standing next to it. the new one is a lot bigger.

http://www.flickr.com/photos/40661465@N00/94275317/

Here's a picture of the two pilots side by side.

http://www.flickr.com/photos/40661465@N00/94275318/

Thank you for any help.

-Jenn [img]confused.gif[/img]

Sorry that didn't work. I need to practice that. You can get them by the right click/view image option until I figure it out.

Jenn

<font color="#FFFFFF" size="1">[ March 09, 2006 10:58 PM: Message edited by: lowracer ]</font>

I think this will work.

Original pilot installed in oven, compared to new pilot
http://static.flickr.com/13/94275317_338baa6fe3.jpg

Original pilot and new pilot side by side

http://static.flickr.com/34/94275318_811296852c.jpg

Thanks, Lori!!

-jenn

Sorry for the delay. I've been fighting politicians and big money over the Caddo Lake National Refuge. They want to use 2000 acres of the Refuge for an Industrial Park. If you go to the dictionary and look up A Hole, you would see their picture. But, that's another story. I'll try to do some work on this project tomorrow. You've got the right ideas, I've got to clearify the installation. Chambers did enlarge the pilot hole in the bottom of the oven to 1" diameter to accommodate the new pilot/thermocouple. This larger hole is needed to get the tubing in and also provide combustion air for the pilot.

Hi Jenn, You have a reasonable idea on using the old pilot as a heat source for the thermocouple. The problem I have is that we would have to use the old Pilot tubing. I have found that this old tubing is very fragile on lots of the Chambers. I can't beleive that there have not been many posts on this board about folks breaking the old pilot tubes! My experience is not good with the old tubes. I have found that grease drips down the tube from above and collects on the bottom of the tube under the stove. The grease and probably cooking fluids that are sometimes acid eats small holes into the aluminium causing it to be porous and brittle. So, I don't want us to use the old tube. The complication behind the use of the old pilot and tubing is the strange size of tubing that Chambers used. It is 5/32" outside diameter. This size is almost non available. The old pilots are sized to use this strange size tube and fittings. So if we break one, it is a real pain to locate and purchase. I have been looking for a reasonable cost 5/32" tube for a long time with no good source. If we could find a good source of 5/32" tube and fittings, Your solution would be a reasonable alternative and also save a few bucks on the Safety system. Perhaps, one of our internet searchers could find a source. I have struck out on finding any. (I know my friend Jack at TOAC claims to have it, but I would prefer to have his source and he is not revealing it to me).