ok found this here on iboats Lower drive shaft/Water pump base seals. Two seals ‘back-to-back’. If these leak the most likely place you see the oil is from the water input holes in the gear housing. To replace these seals just split the drive and remove the water pump assembly and its base. The seals are contained in the base, as is the ‘O’ ring around it. Again, replacement of the entire base is preferred. MC-1 and R drive use the same base, and it is a different base to the MR/Alpha One drives. my question now is, are both of the seals supposed to be pressed into the carrier or one in and one out? When i pulled the carrier, one of the seals wasnt pressed into the carrier, is this correct? ..........EDIT:Never mind i just read its better to replace the whole carrier so there it is.
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