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  1. #1
    Member
    Join Date
    May 2013
    Location
    Canada
    Posts
    105

    Lower unit break in

    Just had a TM1 gearcase replaced under warranty and I'm wondering if there's a break in procedure I need to follow.

  2. Banned
    Join Date
    Jun 2006
    Location
    SW Ohio
    Posts
    25,533
    #2
    I've been told by board members to vary RPM's the first 2 hours and change the oil after 10hrs. I had 2 new LU put on, last one in April, all were under warranty and I asked the Mercury mechanic and he told me no, run it like you stole it... I always take it easy the first few hours and then balls to the wall... Dan

  3. Member
    Join Date
    May 2013
    Location
    Canada
    Posts
    105
    #3
    Thanks Dan. I was told to do the same thing when I replaced my vrod case. I'll take it easy for a couple hours before running like a scolded dog.

  4. Member
    Join Date
    Feb 2006
    Location
    Elephant Butte, NM 87935
    Posts
    4,472
    #4
    I have been told to break it in just like a new motor. That's what I have done in the past and has worked out very good.