I took the hose off and the waterpump flange looked pretty corroded, so I sanded that off as well as I could and put some non-hardening permatex around it. Drove it today and it still leaks after it warms up Is there anything else I can try besides replacing the pump? I'm gonna tighten down the hose clamp a bit more, but its already so tight... anymore might just start cutting into the hose