hot water heater wont get hot

[saltshaker28]

02 28 te with a 315 6lp just did the timing belt added new anti freeze the boat is running great but i cant get hot water through any of my fixtures how do i purge the lines?

[Pitou]

You say that you can't get hot water through the hot water lines. Is the water running cold? If running cold, that would mean the antifreeze coolant loop to and from the hot water tank is closed and not circulating to indirectly heat the water in the hot water tank. There are valves on the engine for the loop and will either be butterflies or ball valves / most likely butterflies. I'm guessing that they were closed when the engine was refilled with antifreeze and never opened back up. Trace the lines and have a look.

[saltshaker28]

it turned out to be air bound I was able to fix it by getting all the air out through the filler cap