We just finished replacing the impeller on our M35B (Late Sherwood). When we were inspecting the pump to ensure nothing was leaking, we noticed a small slow drip coming, not from the water pump, but from what seems to be a weep hole? on the water pump mount. Picture Below.
There seems to be holes located around that mount as pictured (circled red below from the parts manual). If water is leaking from there (approx. 1 drop every 2 minutes while engine is in operation) does that mean that there is an issue with the pump seals (circled in red) or the mount (circled in blue) ?
Any help as appreciated as we are unsure what would be causing it.