Water Pump Impeller

[RING_DING]

I got hold of a used impeller to replace the one I broke, but I see it has a groove in it. The pic shows the new impeller with the groove on the left and the remains of my broken one on the right which has no groove (just uses the locating pin). I assume the groove is for the woodruff key that was used on some earlier models. I doubt there'd be a problem going with this impeller as the part numbers are the same year to year, but just wanted to put it out to the Forum in case there's a reason I should not fit this one. Any thoughts?

[RING_DING]

I may have found my answer.....I found this from Allan on Kettle Clinick:

"Older impellers used a keyway while later ones used a roll pin, some impellers had both the keyway slot and the roll pin slot for a while but now they only have the roll pin slot unless you find an old one."

The impeller in my picture has the keyway slot and the roll pin slot, so I'm thinking I'm OK.

[oldjapanesebikes]

Should be fine.