Re: 1951 250 strange noise from bell housing

Posted by Owen_Dyneto On 2013/9/10 22:09:53

A bit of a long shot, but are you sure the sound you describe is not simple spark knock from too advanced an ignition timing? That sound could come on as you get on the throttle and go away when backing off the throttle - it can sound a bit like marbles ratting around in a tin can and this isn't too far from what you describe. Why not just check the ignition timing first before you get any further into other possibilities.