o.k. guys. we are back to this issue.

over the last few days i have been attempting to get the heat riser valve freed up so it operates as intended. in spite of many suggestions that i just leave it as is or weld it in place (which it already is) or cut it out entirely, i want it to work as designed.

at this moment it is still stuck. solvent, a little heat, gentle tapping...nothing so far.

any suggestions?