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  1. #1
    Member
    Join Date
    Feb 2021
    Location
    Lufkin Texas
    Posts
    84

    4 stroke 250 pro XS lower unit questions

    Buddies rig, just had 100 hr service done about 20 hrs ago. Noticed what looks to be lower unit oil coming out of the side water intakes. Not a lot but noticeable. Local dealer closed this week. Any thoughts? Thanks

  2. Mercury 3L/4 Stroke/Verado Moderator EuropeanAM's Avatar
    Join Date
    Apr 2008
    Location
    Greenville, SC (US)
    Posts
    94,945
    #2
    Possible seal leak- recommend it not be run until the gearcase has been inspected/pressure-tested to check for leakage and/or water intrusion.

    Good idea to have your buddy sign up and provide his engine serial number.


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