Grab your torches and pitchforks!

Thanks Jason, I think this is the second time you have had to educate me.  

So, first was a BBee with a three piece piston, a clean tank, back plate with a narrower slot for the venturi without a screen, then a Thimble Drome stamped tank with either two or three piece piston (used old stock pistons?) and a venturi screen with wider slot, then the clean no stamp fuel tank on the later BBee's followed by thicker cylinders and beefier cases and slotted cylinders, etc. etc. most documented rather well on the engine site.  

Thinking tomorrow I will remove the engine, warm with a heat gun (it's castor locked tight), disassemble and do an anti-freeze boil as I do not have any denatured alcohol.  Might even mount one of my own known good BBee's and run it.  

Bob