Cleaning fly ash?

I replaced my draft inducer last weekend and instead of throwing the old one out I've decided to take it apart, clean it and keep it for parts. What I'm wondering is, what can i use to clean the ash off of the impeller and all of the other various parts? Could I soak it in some CLR then paint it?

I'm also going to see why the motor stopped and try to fix it.

try using a small wire brush(toothbrush size) then spray your preffered rust prohibiter on it before storage

while your taking it apart,see if it's worth while to repair and set on shelf
not much should be wrong with it other than the motor

Dennis, that's the plan. I'm hoping I can repair the motor too. I was going to try soaking the impeller and the housing in CLR. Im just not sure if it'd work to take thr fly ash completely off. I was going to vacuum the loose stuff off.