WHen you turn on the oven/broiler does the size of the polot ligh increase in size??
the way it is suppose to work is...thier a small free standing polot light and when ya turn on the oven the size of the pilot is suppose to increase and heat a little bulb that is connected to a wire that is mounted to the pilot burner and when that bulb heats up it will allow the main gas to flow into the oven(not pilot burner).
If the size of the pilot does not increase it could be caused by a clogged pilot burner. the way to determine that is TURN OFF GAS SUPPLY...disconnect gas line from pilot burner and turn on gas to unit, light that tube with it disconnected from pilot burner and turn oven on and see if size of flame drastically increases...if it does turn gas off and remove and replace pilot burner
if flame sizedoes not increase the problem is going to be the thermostat
If the pilot does increase and heats the bulb on the pilot burner the problem will be with the gas valve that,that bulb in the pilot burner accathes to is bad .
now chances of the thersostat still being available is very slim if the pilot burner is clogged and needs replaced they are still available their is 2 of them one has the mounting plate on the left and one is on the right.
here is what they look like
Part number for this one is 1898-021 notice how the mounting tab is on the right
this one is pt# 1898-022 the tab is on the left
That when performing a quick search on google is pretty much all that still available teh thermostat (would need model number) is doubtful to find also a good chance the gas valve is also no longer available