as stated i own a 86 2.3 litre ford in a 86 bluefin sportsman. omc cobra outdrive when running there is a noise coming from the rear sounding like a bad bearing, if i tilt the outdrive just right the noise goes away. what exactly could this be? also im getting gas in the oil. the boat sat for 3 years but started right up. i had this problem when i first bought it but thought i fixed it with a new fuel pump. does it matter if you use a marine feul pump or just go down to an auto parts store and get one for a 2.3 litre ford? Please help me this boat has been a headache since i bought it.