goo

[luke31186]

Hello everyone thanks for all the help so far. I have a 1997 seadoo challenger with a 787. I have a grey goo on my pistons like water and oil mixed. My question is what all can cause this. The problems i have found so far that i am fixing as we speak is broke rave valve and exhaust leak. Also my exhaust piston melted and my other exhaust piston is like stripped and someone told me i also need a new housing for the rave valve now, is this true or is there a way to check to see if i need a new housing. But can any of these things create the goo on my pistons if not then what all could i start checking. So far i checked my cylinder walls for cracks and my heads. What all else can i check.