I changed out my impeller today and cannot seem to find three pieces to the impeller. So with that being said I need some help to try and locate them. I took the thermostat housing off hoping they would be there but no luck. Anybody know where these pieces might collect? According to whats left of the impeller these pieces might be about the size of the vanes. Thanks for any help. I have a Mercruiser 350 5.7 L Bravo 1 (impeller is located on the engine). Thanks for any help.