OutdoorKing Repair Forum Forums Repairs and Maintenance Questions On Chippers, Mulchers, Shredders & Stump Grinders Petrol Chippers, Mulchers & Shredders masport 5hp belt drive chipper shredder rebuild

G'day Mutt. I can't help, but I'm tagging along with a similar problem. I've bought a well used Masport chipper/mulcher, I believe 1994 model, with a 5hp B&S. The blade assembly is in need of repair (see photos), and the crankshaft oil seals need replacing, probably due to the blade condition. I'm wondering whether anyone has one, or is familiar with them. The three blades have been welded to two bosses, which in turn are keyed to the shaft with what I believe are standard B&S keys, half round in shape. These had long since failed, as had most of the welds. It's hard to believe these welds were OE, as they are so poor, yet I can't see any other means of attaching them to the bosses. I'm considering re welding the blade assembly, then using grub screws through the bosses, set into the shaft, perhaps two to each boss, and wondered what anyone's thoughts were. I'd be grateful to hear back.