Re: Impeller – key vs pin to shaft

[Leon]

No problem. Just use the pin that’s on the shaft and continue using the waterpump as before. The impeller is going need changing, long before the pin will wear into it, anyhow. The fact that the sleeve on the impeller is brass is what’s important. The plastic sleeve impellers will need the woodruff key though, because the pin will dig in quicker. You can also get the pins, that have the flat sided heads on them, which will make your issue here a little closer to your liking. What kind of motor?