Logo
Click for Suzuki Manuals, Parts and Model Guides!
Results 1 to 9 of 9
  1. #1

    Default water in oil for 2.5 hp four stroke

    latest problem for my suzuki 2.5 hp four stroke. water is leaking into the oil pan when running. have replaced the upper oil seal but no joy. checked for cracks or leaks from cooling system but can't see anything. any suggestions would be welcome.

  2. #2
    Join Date
    Sep 2006
    Location
    SF BAY AREA, CALI, USA
    Posts
    8,649

    Default

    Did you replace the oil pan gasket and power head gasket
    HUMAN BUILT = HUMAN FIXED

    CERTIFIED MARINE TECHNICIAN

    WWW.JUSTINTIMEMARINE.COM

  3. #3

    Default Re: water in oil for 2.5 hp four stroke

    the problem was the crankshaft seal. i had replaced the drive shaft seal and the crankshaft seal was less than a year old but it was leaking water into the crankcase. now no more water in the oil. but expecting more problems soon.

  4. #4
    Join Date
    Sep 2006
    Location
    SF BAY AREA, CALI, USA
    Posts
    8,649

    Default

    Saltwater motor?
    HUMAN BUILT = HUMAN FIXED

    CERTIFIED MARINE TECHNICIAN

    WWW.JUSTINTIMEMARINE.COM

  5. #5
    Join Date
    Sep 2010
    Location
    ontario
    Posts
    13,669

    Default Re: water in oil for 2.5 hp four stroke

    No need to add lead at all !------If you want the motor to outlast you then add a little extra oil to the fuel ( 40:1 )--------------One of the weak points on those motors is the lower unit.---They can not tolerate water in them.----Use a premium gear oil in the lower unit.-Replace waterpump impeller if you do not know how old it is and every 5/6 years after that.
    Last edited by racerone; 11-23-2012 at 10:56 AM.

  6. Default Re: water in oil for 2.5 hp four stroke

    In an effort to not open a new thread. I searched and came across this thread. I recently aquired a 2011 2.5DF four stroke. The oil is milky, i have flushed and refilled the oil twice. Everytime is is milky again. How do I go about finding where and or why the water is getting in my oil? Thank You In Advance!

  7. #7
    Join Date
    Apr 2016
    Location
    barnegat NJ
    Posts
    2,707

    Default Re: water in oil for 2.5 hp four stroke

    Read above threads

  8. Default Re: water in oil for 2.5 hp four stroke

    Quote Originally Posted by johnnygjr View Post
    Read above threads
    I did, and aside from looking for a leak I don't know where to look. There are no obvious leaks and or cracks.

  9. #9
    Join Date
    Apr 2016
    Location
    barnegat NJ
    Posts
    2,707

    Default Re: water in oil for 2.5 hp four stroke

    The leak is more than likely internal,crankshaft seal, Not familiar with that engine,but the power head might have to be removed to inspect, Wait for others to reply to your thread

Similar Threads

  1. Water Pump -- 4-stroke vs 2-stroke
    By Mercgurr in forum Mercury Mariner Outboard Forum
    Replies: 1
    Last Post: 01-19-2012, 07:59 AM
  2. 01 yamaha 4 stroke.water in oil
    By grub54891 in forum Yamaha Outboard Forum
    Replies: 5
    Last Post: 07-18-2011, 07:40 AM
  3. 2001 4- stroke 115 oil in water
    By santacruzin in forum Yamaha Outboard Forum
    Replies: 4
    Last Post: 05-07-2011, 10:21 PM
  4. 99 130 hp honda 4 stroke should have been water in oil
    By jmsims3 in forum Honda Outboard Archive
    Replies: 0
    Last Post: 05-29-2009, 07:03 PM
  5. Water pump on 200 4 stroke
    By river in forum Yamaha Outboard Archive
    Replies: 1
    Last Post: 03-16-2008, 03:55 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •