Pilot light on propane floor furnace

I have a very old floor furnace, and the cone where the pilot light flame exits needs replacing. It is rusted and degenerated so that it barely works well enough to open the thermocouple. How do I replace this. Can I remove the whole pilot tube from the unit where it attaches, and if so does it require some type of o'ring to reattach it? Just how does it attach to the unit from which it originates?

 

You probably did not receive a reply because you offer very little information in your post as far as the type of unit you have. Since you are dealing with propane or natural gas and you are not a service tech, I suggest that you shut off your gas supply and remove the entire burner assembly to properly examine and service it.

Disconnect the pilot tube, main burner tube, thermocouple, from the main gas valve and remove the entire burner assembly. Depending on your unit there may be other screws and stuff holding it in place which you will have to figure out. Bring the entire unit to a reputable supplier and have him suggest and guide you through to determine which parts should be replaced. When you have re-assembled everything all you need to do is re-install it and TEST FOR LEAKS WITH DISHWASHING SOAPY WATER before lighting anything. Even a tiny little bubble indicates a possible leak so please be careful!