Bypass valve stuck on B-100

[608KEB 795]

The bypass valve on a B-100 I bought a few months ago will not free up. I have been spraying PB blaster on it every other day for the last 2 months. I still have had no luck. Any suggestions? KB

[Kelly 1,029]

I've used heat on a couple, it is best to use a torch with a heating tip so you can put lots of heat fast to one spot, if you use a small say butane torch it takes forever to heat it up and the heat spreads farther the longer you heat.

[608KEB 795]

I was afraid of damaging something on the inside. But I will try that. Can that screw come all the way out?