Maritime
Over 10,000 Posts
That all looks ok. Are all the washers inside placed right? Very weird it would stop all of a sudden unless something broke or came loose. Did you check all the washers etc. for cracks? The broken spring to me indicates something started to bind and the spring could no longer return the arm and being old metal te fatigue broke it. Somewhere there has to be a moving part worn or damaged to cause this issue.