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#1
17-02-17, 10:15
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hard work
This is hard work and not the sort of thing to be undertaken by the faint hearted disciples out there. I am in need of a weeks rest before I tackle the next one.
__________________
1940 cab 11 C8 1940 Morris-Commercial PU 1941 Morris-Commercial CS8 1940 Chev. 15cwt GS Van ( Aust.) 1942-45 Jeep salad 
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#2
17-02-17, 11:51
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Removing rusted on tyres
Hi Mike,
Nice work. I must admit I felt a bit squeamish reading about the use of a chain saw to remove tyres here on the forum but after seeing the wall thickness of your RF tyres compared to conventional 9.00 x 16" I can see the advantage over a reciprocating saw. See attached photo for comparison. I could only envision the disaster if chain accidentally meets steel rim, or if it kicks back, hence my concern. I can only vouch for my standard military tyres but my Ryobi reciprocating saw goes through the tyre carcass like a hot knife through butter. I Used a medium pitch wood cutting blade in it. It still does the job on standard tyres and a lot safer and easier to control than an angle grinder or chain saw in my humble opinion. Just drill the four 3/8" or bigger starting holes as I mentioned in a post last year on the subject. I used a hand chisel to cut the bead wires but to do it again I would use an air chisel. It would sure speed up the process, save the knuckles, and they are cheap to buy now. As always, I bought an air chisel after I had removed 10 tyres. Some people learn slowly! Cheers,
__________________
F15-A 1942 Battery Staff Jacques Reed
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#3
24-02-17, 21:51
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__________________
SteveJ 1943 Dodge WC52   1986 Armstrong MT 500 CDN Motorcycle 
Last edited by SteveJ; 24-02-17 at 21:53. Reason: trouble posting pictures
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#4
25-02-17, 01:28
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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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#5
25-02-17, 03:20
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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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#6
25-02-17, 05:15
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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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#7
25-02-17, 05:55
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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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