Yep I know its early. But you know whats its like, when you stop doing something and theres a problem thats worrying you at the back of your mind. and it wont go away. Well after tossing and turning at 2am this morning I got up and gave in - went back down the shed, to see what this silicone stuff was and try n find out why its there, as well as to get the bottom engine mount bolt to do up tight.