I am trying to remove the impeller from my MTD chipper shredder model # 244-648B000 with a Tecumsah 8 hp engine. I have everything removed but the impeller. I feel like Egger trying to open the box of diamonds in Men in Black. I'm assuming this is a keyed crankshaft. I've tried everything I can think of. Any help would be appreciated.
Get a propane torch heat up impeller not shaft. Take a candle made of parafin wax and it will get sucked inside the hole when held near shaft.Then use a steel hammer hit in both directions.Have fun watch the fingers!