"I am trying to diagnose a wat
"I am trying to diagnose a water pump issue - slight lack of pressure. There appears to be two different wear plates for a 1977 70HP. One photo shows omc 341038, the other a GLB. The GLM has a bigger cut out along with a small hole opposite. Does anyone know the diference? Would the GLM with larger cut out provide better waterflow?
Thanks
OMC 341038"">
GLM wear plate
"I am trying to diagnose a water pump issue - slight lack of pressure. There appears to be two different wear plates for a 1977 70HP. One photo shows omc 341038, the other a GLB. The GLM has a bigger cut out along with a small hole opposite. Does anyone know the diference? Would the GLM with larger cut out provide better waterflow?
Thanks

