by Hans
(Allegany, New York)
Tested out engine prior to going to lake with ear muffs, water discharge from engine was fine. Got to lake no discharge, took it to mechanic he replaced impeller and said old one was good, checked all lines for plugging, screens all clear can't get engine to pump water. He is stumped and so am I. Any help or suggestions as to what may have gone wrong would be appreciated. Might some gasket have blown and needs replacing?