silicone can be cut down each side and it'll pull loose .... for the original goo, carefully dribble some gasoline or lighter fluid along each side to soften it up, might take a bit of fussing but you should be able to wiggle it out - see the shop manual

Bill

Moved over to the Passing Lane

"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir
"When we tug a single thing on an old truck, we find it falls off" ~ me
Some TF series details & TF heater pics