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Did you leave the puller on with pressure? 444-544 1962

posted by  neilho on  Fri Dec 25 07:43 CST 2020
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last visit: Mon Jun 9 06:15 CST 2014
[RELATED]

An oxyacetylene torch with a rosebud is my favorite tool for these things.

I'd recommend leaving the puller on while heating. Heat fast, and in the hub area. When the hub starts to glow, use the BFH, 8 lbs or so, on the head of the puller screw. If it doesn't work, stop, wait till everything cools down, try it again. In addition to the delta T, there's something about heat that'll "dry"(?) the rust out, so repeated cycles are beneficial.

Ron's right, the entire drum assembly will expand, all holes will enlarge. Thermal coefficients aren't selective. If they were, they wouldn't be coefficients.

I haven't found any of the penetrating liquids to be helpful in this situation. And when applying heat, serious heat, they just smoke and add more grunge to the joint. You want less grunge, not more.

Good luck!






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