I have a question for the evinrude 9.5 hp owners. I have discovered water in my lowercase. The lower screw seal seemed junk, but I am wondering if it could be the propeller shaft seal or the very lower case seal. My question is the seloc manual list you basically having to gut the lower case to get in it. Can I replace the propeller shaft seal without opening that case, or can I just remove the lower cover and change those two mentioned seals without major work. Would I need to remove the lower phillips bolt they tell you not to remove , any help would greatly appreciated