This tire has had green slime put in it 2 years ago. That is the inner tub= e has the slime. I spun the valve out of the inner tube and could not squeeze any slime into= the tube. I put the valve back in and tried to put air in the tube. Tire did not inf= late. I took the valve back out and stuck a 14G wire into the stem. The wire stop= ped at the depth of the stem and would not go further. I pushed pretty hard. The ste= m was parallel to the ground so I do not think the tire was pushing back. Ever had this happen ? Gus in Denver --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .