danca

That should read, the pulley is NOW tapered in the inside.

Does anyone know where I can get a water pump or water pump parts for a Mack ENF 707A? Someone rebuilt mine, but then didn't tighten the pulley nut tight enough. It wobbled on the shaft, causing both the shaft and the pulley to become badly worn. The key way is mushroomed on the shaft and the pulley is no tapered inside. The seals are good, the bearings are good, but the pulley and shaft are bad.