ok i just got my water pump kit from mercury (item # 46-99157t2) and in the kit are 2 small o-rings and 2 small blue fiber washers witch are not in the motor, now ie:last person to instal water pump skip useing them....... I can not find these parts on exploded veiw of motor but by there size I would guess they belong somewhere on the water up tube any ideas.............allso impeller rotates clock wise lookin from above?