I recently gutted an even bigger can from a Zenith upright chassis without much trouble. The guts came out much cleaner as well but no tar was used in manufacturing. This time I just let it sit on its side in a foil pan on the stove on medium heat, turning it occasionally. It's a real arm/hand saver, worked a treat and there was no smoke; of course I wasn't burning a hidden phenolic wafer this time.
I had acetone for another project and used it to help clean out these cans. My experiments moved some of the mess to the outside of the cans so I may have to wait a while for an opportunity to try the Xylol.