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#1
24-02-17, 20:51
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__________________
SteveJ 1943 Dodge WC52   1986 Armstrong MT 500 CDN Motorcycle 
Last edited by SteveJ; 24-02-17 at 20:53. Reason: trouble posting pictures 
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#2
25-02-17, 00:28
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tire removal
For shear brute force and ignorance a 50 ton press is real handy for pressing original run flats off rims.
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#3
25-02-17, 02:20
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The Hammond Barn had looked at the 20 ton press but it isn't wide enough to fit the wheel/tire assembly far enough in to achieve much. It might be possible to create wider fame members. Do you have a feeling whether the 50 ton the press was working hard or way below capacity in removing the tire? Is that a 20" rim being used as the load spreader or did you have to go to a larger size to clear the (assumed) CMP 16" rim.
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#4
25-02-17, 04:15
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Rim size
Grant
I had a rim from an M135 ( 20 inch tire size) and it has a one inch greater inside diameter than the outside diameter of the 16 inch CMP rim. The greatest pressure I saw was 15 tons and the tires were dated 1941, 1942 run flats. I assumed they had never been replaced. When I was looking for a shop press the bang for buck seems to improve quickly with increased tons, as does the working width. I have made a set of dies and can form 32 inch wide 16 gauge steel. Maybe not as pretty a job for some instances but for an old CMP it is good enough. Gord
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#5
25-02-17, 04:55
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Thank you. Based on your experience I think some investigation will need to be done to see if it is practical/economic to build/modify to get a larger gap for the 20 ton press. With respect to whether your runflats had ever been removed, my only indicator would be that absence of the bead spacer might suggest that at some time in the (distant?) past some work was probably done.
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