Gents,<br /><br />I drained my lower unit oil a couple weeks back, and noticed some 'milkyness' to the oil color, but not too bad. I just drained it again tonight, after putting on about 20 hours, and it's gotten worse. Darn near pure 'eggnog' this time around.<br /><br />I was planning on changing out the water impellor this week just as a preventive measure (I run onto the beach quite a bit.) Since I'll have the l/u (lower unit) off anyhow, I'd like to get some advice on what seals I should be looking at replacing. I've got a factory service manual, which is good for instructions, but shy on troubleshooting.<br /><br />Plus, any words of wisdom on changing out the impellor whould be much appreciated.