Im having trouble with a oil leak into the distributor cap on my ts (94) magna, took it to my mitsu repairer and they changed the external seal (between the motor and the distributor) even though i told them it was the internal seal that was stuffed, they then told me that there is no internal seal even though the gregorys manual states that if there is oil inside the cap its coming up the shaft from the motor and past the internal seal thus a new seal is needed. Is there a seal inside? cause theres still oil getting inside and it aint coming from outside

cheers
steve