Hey exit, just wondering - if the wax isn't melting enough what can you do about it? Can it depend on the quality/type of wax? I think I'm having the same problem as the other fellow.
Yo so is your wax kinda thick? Not like shatter that gets super almost rock hard at room temp, but pretty thick when it's at room temp. That's what the kind I was having problems with was like. I'd take a pic for you but I can't remember where I put my phone down.
( NOTE I'M TALKING ABOUT F'ING UP CARTS HERE! SO DON'T SKIM THRU MY POST AND FOLLOW WHAT THIS PARAGRAPH SAYS! THANKS! ) So with some of the wax I had before that it was thinner and ran down by itself farther when it got heated but this stuff seemed to barely move unless you had the torch flame pretty much right on it. My "old" way of loading carts was put the torch on full and spin the cart while I was holding it with some pliers, from the load tool to halfway down, until I saw some smoke coming out. It worked SOMETIMES but sometimes the oil would taste burnt and sometimes I'd just annihilate the top heater rendering the cart useless.
( THIS IS THE GOOD STUFF! ) I'm sure you remember my most recent ordeal with "forgetting" how to load a cart and killing 5 in the process trying to load them. Well I know I killed two but I wish I hadn't reclaimed from 2 of those because now I know it was just an air bubble I couldn't beat but would have if I had persisted. I got most of that oil back so whatever. Anyway I was careful to hold the carts in my fingers so I didn't overheat them, but it IS okay to blast the cart with heat in certain sections if it's necessary but keep checking the temp of the cart with your fingers to make sure it's not WAY too hot somewhere, and you're just using the flame/heat gun/whatever to heat the metal to the desired temperature.
So my problem was I would get the oil melted thru the fill tool and then it would look stuck at the entry holes into the cart. I had to put the torch flame closer and for longer around there. It got too hot to touch for sure but the wax had to get melted down. I was careful not to overheat where the top heater was.
( THIS ONE'S FOR YOU TSC.V8 PAY CLOSE ATTENTION ) OK this is where the revelation happened and I think what will help you, and might even render your "dead" carts useful. The wax seemed to be flowed down past the top part of the cart and you would assume by that point it was clear. But I kept tasting dry burns. So imagine you are holding the cart from the bottom. That point right above about two fingers high, in the middle of the cart, is probably where your oil is stuck. Take your heat device and heat up that middle part nice and hot (NOT TOO HOT!) for a couple seconds. Then put it up to your ear. If you hear sizzling/the melting of oil, MYSTERY SOLVED. Wait for it to cool down, throw it on a battery, take a QUICK hit because you don't want to dry burn it out if the oil isn't there yet. If you taste a dry burn, REPEAT this step of heating the middle until you hear the oil sizzle, CAREFUL not to get the top or bottom where the two heaters are too hot, until you taste vapor. If this was your problem and you followed my steps correctly you will get a cart that hits BEAUTIFULLY.
I even loaded a second cart like this to make sure it wasn't just luck. Good luck! I hope this solves your mystery!