I hope you can help me. I have a 1932 W32-6 500cc side valve BSA which is similar to the BSA M20. There is an Oil Pump Control Spindle on the right crankcase timing cover however I can’t find out which way I should have it turned.
I know that this controls the oil pump which takes oil from the sump an delivers it to the big end. It will turn through 180 degrees. At the moment I have the small handle on the spindle pointing forward because this was the position it was in when I purchased the bike. Could you please tell me what pointing it forward or backward would do.