I have figured out my impellar is not pumping water,which in turn cause my exhaust bellow to smoke.Im a auto mechanic by trade and was wondering if anyone has a pic. to post,with an<br />exploded view?The boat is a 1988 berretta with a 131 volvo and 290 series outdrive?I have also found a small water leak around silver collar for<br />"the plug" any products or suggestions on repair?