I have a 1987 C30 with M25 Universal. Now my question is, there's a fiberglass box just to the left aft of the motor with various hoses attached to it. I believe it is some kind of heat dissapator. It is about 12"cubed. Now here is the extention to question, how difficult is it too remove? I have a mild leak coming from this thing that I want to resolve. Thanks for any input.