The one flange ( cylinder head ) had some leakage.
So I replaced it and replaced another flange and expansion tank ( This tank was VERY dirty....) .

Let's start !!

-	Needed Parts -
-	Hose flange kit, cylinder head : Kit includes flange, seal ring to head, three seal rings for sensor ports, one plug for sensor port and one retaining clips.
-	Hose flange, cylinder head (Side) : This includes seal ring to head and one ring for sensor port.
-	Expansion tank ('90-'92 type )

Hose flange kit


                                    

Replaced ! :)



Hose flange, cylinder head (Side)


                                    

Replaced ! ;-)



Expansion tank


Before


                                    

After ! :D



When you open the hood, if the engine room is very clean, I think you will feel comfortable. ;-) So I recommend that you will also replace the expansion tank if it is very dirty.

Anyway, I finished the replacement ! :D