Balance came loose need assistance

Hi there, Paul. Great name by the way. Looking at your balance, I believe you need our S400-30 spiral balance. The nylon bearing is not available in a black color tip option. Your tip may have blackened over time with the grease sitting in there from the balance itself. You will need to weigh your sash on a scale and refer to the sash weight chart on the store page to determine which color tip would work best. You may also want to consider purchasing the charging tool for this balance, our 75-005. It'll help when installing the bow tie at the end of the spiral to the sash clip. 

I've done the same myself when dealing with the same kind of window. You put the sash on the sill, disconnect the balances, then gently lower the sash onto it. It may not be 100% accurate, but it'll be close, and should be fine for your purposes.