I have done this twice now. Once, just putting the machine in the freezer for about 3 hours caused the pot metal bushing and the rod to shrink at slightly different rates, and I was able to pull the mandrel out. The second time was harder. Penetrating oil sprayed in the oil hole over the bushing and a LIGHT tap with a rubber hammer (to the end of the mandrel) once or twice a day for about 3 days, and it finally came loose. Maybe one of these will work for you!
Matt
Found a nice project machine over Thanksgiving.
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Re: Found a nice project machine over Thanksgiving.
I'm confused. The OP asked for "the best way to get the swollen bearing out without damaging anything else." From that, it sounded like he/she was ready to remove the bearing, as nothing was mentioned about removing the mandrel & mainshaft. If the mandrel & mainshaft are not yet removed, I should delete my previous post - it wouldn't be time for a hacksaw!
We seem to have a failure to communicate.
George P.
We seem to have a failure to communicate.

George P.
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Re: Found a nice project machine over Thanksgiving.
George, I get entirely too much of my exercise jumping to conclusions. We need the OP to tell us exactly where he's at with this machine.
Jim
Jim
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Re: Found a nice project machine over Thanksgiving.
Since George P. is using classic lines from Cool Hand Luke, and after taking a look at all them pictures of the Triumph anything so innocent and built like that just gotta be named Lucille!!! 

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Re: Found a nice project machine over Thanksgiving.
In case anyone was wondering what muriatic acid is, it is another name for hydrochloric acid.gramophoneshane wrote:Last time this question was asked, someone recommended using muriatic acid, which apparently dissolves the pot metal, but I've never tried it myself.