Hi, my name is Kerry

Your exhaust rubbers may have burned through from the inside from not enough water getting sprayed into the exhaust.

That could be bad a sea water pump or a resriction in the cooling system.

If the pump is good, the most likely place for it to start plugging up is in the risers.

You need to replace the exhaust boots anyway, you can check and clean the risers while it's apart.

The leak in the exhaust rubbers won't cause an overheat, it's actually the other way around, the overheat causes the leak in the rubbers.

When was the last time you replaced the water pump impeller?

How long have you had the boat?

Usually do the water pump every few years.

You remove the drive, drain the oil, separate the lower from the upper. rebuild the pump and put it all back together.

Two years plus whatever length of time before he sold it, it's probably due for a water pump.

In the drive leg

I do it in about 1 1/2, an outdrive water pump and oil change.

$100 + plus labor

These drive should be serviced regularly. You take it off the boat, check the water pump, change the oil, check and grease the u-joints, change thw zincs and put it together

You're welcome

Every couple years