Thanks everyone for your input. I found a site that has a calculator to determine the required spring. ( I think) The site is Bansbach Easylift. The only problem I had was the dimensions are in mm and the weights are in Newtons. ( Fig Newtons are the only Newtons I was aware of) After converting all of that the calculator said I needed two 31.7 lb springs for the generator door. I found springs at pplmotorhome.com for what seems to be a reasonable price at $15 each. My choices were either 30lb or 40 lb. I elected to go with the 40 lb springs. At least this will be a starting point and I can adjust the spring size according to how they perform without breaking the bank.
Ran D., I did not try the calculator you found although it sure looks easier to use than the one I found. Also, the spring mounts will be to 14ga square tubing. Again, thanks all for the input.
Michael
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