GBI22 weed eater blower

This isn't about a lawn mower but it's a small engine. I recently broke my starter rope, I rewound the spring and replaced the rope no proplem. The problem is when I put the spring housing back on with all the screws installed and pull the rope it doesn't rewind. Now if I just hold it in place without the screws it rewinds fine. Any ideas, I'm stumped.

Thanks

GBI22 weed eater blower