1929 Farmall regular oil pan valve

[68mustang]

Oil pan oil level valve frozen , tried to apply heat and the solder around the retainer that the valves thread into started to melt, only the center valve is frozen, was their solder from factory sealing that retainer to the oil pan, any ideas on freeing up that valve ?

 

[Nebraska Kirk]

the valve is screwed into a cast plate that is riveted and soldered to the oil pan. Unscrew the valve from the pan and then you can apply heat to it without melting the solder

 

[miangus]

Oil pan oil level valve frozen , tried to apply heat and the solder around the retainer that the valves thread into started to melt, only the center valve is frozen, was their solder from factory sealing that retainer to the oil pan, any ideas on freeing up that valve ?

Your favorite brand of penetrating oil and tap with a hammer, repeat. Might take a while. Spray with your choice of penetrating oil heat with a heat gun and allow to cool, repeat. I saw a guy on U-tube using the last method on firearms and said that will not work, however I tried it and it worked. Apparently, my method of roasting stubborn bolt with a torch is a bit of overkill.

 

[68mustang]

the valve is screwed into a cast plate that is riveted and soldered to the oil pan. Unscrew the valve from the pan and then you can apply heat to it without melting the solder

The valve is also rusted on to the plate, can’t unthreaded from plate.

 

[Nebraska Kirk]

The valve is also rusted on to the plate, can’t unthreaded from plate.

Light heat and then penetrateing oil. The heat will help draw the oil into the threads.