Leaking waterpump 60hp

[khnaess]

Hello
I have this 1937 v860 and I noticed that there is som water coming out of the little hole (se arrow on picture) from my left water pump. The car has been sitting for a couple of months. Is this some quick fix or do I have to pull the pump? I can live with some small dripping once in a while but the way it is now is too much because the fan belt throw water all over the engine bay.

thanks
Knut Haakon