you now guys it was difficult to remove the 4 bolts.All of them broke.The matter is that i trusted someone who made things worse and wounded the area where the gasket steps while trying to drill new holes on the broken bolts.I think of using a strong silicone (sicaflex) and stick the water pocket onto its place without using gasket but i don't know if the exhaust will influence the sicaflex wich is perfect sealer for water but not for very high temperatures.What is your opinion?