I have a problem with my very old White brand sewing Machine?

Hello Churyl,
Start with the top first, make sure it is threaded correctly, make sure you have the presser foot up when you thread the machine so the thread goes between the tension discs, top tension between 4 and 6, bottom tension shouls be set so the thread just about pulls through evenly, if it is too tight slacken off the screw on the bobbin case slightly anti clockwise, make sure the needle is in the correct way round.
Ken

drivewithken@blueyonder.co.uk
January 2008