I have a Singer 29-4, circa 1902, S/N K3403-02 While working to restore this machine we have met several challenges but thanks to the web we've been able to fix most of the issues.  We have reached one that we can't seem to solve and are desperately hoping that someone here can advise us. The issue is that the needle thread will not capture the bobbin thread.  We aren't sure if the shuttle needs to be realigned or is there something that we missed?  We haven't been able to find any