Had the exact same issue with my frame this week.
Tried all the usual solutions including Cillit Bang, but without success.
Cut the stem right above the headset and then stuck the inverted fork inside a vase filled with a mixture of caustic soda and water.
The stem dissolved within 24 hours.
First time I've ever used it and was surprised and impressed with how easy it worked, despite Dale always telling us this is the best method.
I'll never fear a stuck stem or seatpost again.
The frame gets powdercoated tomorrow.
@dmczone started
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Had the exact same issue with my frame this week.
Tried all the usual solutions including Cillit Bang, but without success.
Cut the stem right above the headset and then stuck the inverted fork inside a vase filled with a mixture of caustic soda and water.
The stem dissolved within 24 hours.
First time I've ever used it and was surprised and impressed with how easy it worked, despite Dale always telling us this is the best method.
I'll never fear a stuck stem or seatpost again.
The frame gets powdercoated tomorrow.