Coolant leakage on 2001 Kia Sephia

There is a round metal tube that appears to be attached to the back of the thermostat housing and is located above the starter, its been leaking for a while the tube looks pretty well rotted out, and I have been told by my mechanic that it is built into the head and cannot be replaced, I find that hard to believe, the leak has ruined a starter, the car runs great, body is in pretty good shape, I don't want to junk it because I can't get the leak stopped. Can you help me. Its leaking almost a gallon a day, that is the only place it is leaking. The metal tube also has a small hose that appears to go to the heater core. Can you help.

by in Plattsburgh, NY on August 26, 2013
2 answers
ANSWER by on August 26, 2013
SEEK A 2ND OPINION FROM ANOTHER MECH AS TO WHAT YOUR OPTIONS ARE
ANSWER by on August 26, 2013
If you cut the leaking part of this pipe off, is there enough left to put a longer hose on it to fix this problem?