i would put the stem bolt back in....then tap it gently with a hammer(the head of the bolt).This will loosen the expander bolt,hopefully,and then use mole grips to pull the stem out.....
@mdizzle started
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i would put the stem bolt back in....then tap it gently with a hammer(the head of the bolt).This will loosen the expander bolt,hopefully,and then use mole grips to pull the stem out.....