I picked up a 91% at a B&M today. The top of the chimney does not budge when I try to remove it. I'm wondering if there was a design change.
Sorry... I can offer lots of suggestions, but chances are you don't have the tools that I do - so it wouldn't do you much good.It doesn't budge. I even tried putting a dishrag over the top and taking a pair of needle nose pliers to it.
Sounds like the worst you did was scuff up the ID of the top tube a bit - no issue with that, as it doesn't seal there - and smart of you to think of inserting the NN pliers into the ID.I finally got it apart. I soaked it in hot water, then had to insert the needle nose pliers inside the hole on top. I put a several folds of a paper towel between the pliers and chimney. I was so worried I would scratch it up.