Just replaced the fan ,rad and apron after installing new speedi sleeve,cover seal and gasket only to find the leak was really coming from a crack in the vicinity of the timing chain tensioner. I remember replaciing a timing cover many years ago because the tensioner had worn thru the cover. guess it happened again. I have a spare cover but I'll have to pull everything apart all over again :-(. I suppose it might be possible to sand down the leaking area and apply epoxy steel compound but it looks like there is a kind of bump where the leak is so there might be another issue with the tensioner or support pin that I should really investigate. Anybody else had this problem in the past?