Originally Posted by Cat 1

On another finding - I have always had "mushier" compression on one of the cylinders of this engine - I think Bert and Dave might have had similar issues.. Dave suggested I check for a stuck ring and I did that but found it OK - ring gap is a little excessive but nothing else is apparently bad there. As I was reassembling I tried to check all leak sources and noted the intake had a draw and pressure as it was turned over with the port plugged with a finger. (both valves closed) Took a while to find it but there is a leak between the valve seat and the head in the area noted in the picture. This engine runs excellent so I don't think its an issue and I don't think to would be a simple fix.