Greetings friends.....picked up an old Jacobsen Imperial from a scrapper I can't stand seeing die. I added a rebuilt newer carb on the Tecumseh H70....freed up and adjusted the tranny, put a couple of tubes in,( painted and cleaned up rims while I was at it),and generally going through and trying to make up for age and neglect. My question......the blower has only one belt with a tighter for the auger. The blower's belt is currently so tight, the auger clutch doesn't work..it obviously wants a bigger belt. Does any one know the belt size for this machine....model number 52625 ? If not....how much would you add to the belt that is there.....1 inch? more ? Less? I'm not sure of the age of this old girl, but got to be early seventies anyway. A real rugged piece of machinery.....BTW, this is the oldest blower I've seen with electric start.