I am trying to disassemble the cooktop because the ignitors continue to arc after a burner is lit. The problem I have is that I need to remove the brass tubes that attaches from the burner base to the inside. I was able to unscrew three of them, but two bound up and broke something inside, and now just spin. It looks like the aluminum is gumming up onto the brass and causing them not to unscrew. Now I cannot get the top to come off because the tubes hold the top on. I am not sure how to proceed.
Any suggestions?
Thanks,
Roland

Ok tried to replace burner pan. It was in bad shape from previous owner. I wanted my stove to look new. Tried to take apart burners and same problem. Brass Venturi on one burner will not come out..maybe stripped or something? repairman was here 20 min..called GE...deemed it unrepairable and charged me 100.00 and left!!! Ge offered new stove at discount. The brass venturi get hot and expand and over years eventually don't budge and GE knows this and will tell any repairman it is unrepairable. But these stoves are reconditioned all the time and I know there has to be a way to fix it!!! ANYBODY know???? new stove would be 5400.00. I need a car not a stove!