Merc 40 efi 4 stroke question

  • suzuki
    Woodbury, Mn
    Posts: 18039
    #2154010

    2006. I pulled my pontoon last weekend then changed the oil today and the oil filter was basically dry inside. It has ran perfect all summer with no issues. I’m going to turn it over tomorrow and see if any oil pumps into the filter. Ring a bell with anyone? Pretty sure there would be some residual oil in there even after sitting and draining for a week? I remember it coming out of there in the past when I pulled the filter.

    MX1825
    Posts: 2981
    #2154012

    My f150 has no oil in the filter when I change it IF it has not been run for 48 hours.

    Iowaboy1
    Posts: 3611
    #2154022

    The oil filters lay horizontal on them and drain over time, no biggie as it is normal, remember, they will drain back to the pan very easily when the oil is warm.
    They drain even quicker if the filter is on end.

    Jeremy
    Richland County, WI
    Posts: 687
    #2154027

    I know my 40hp efi 4 stroke has an oil pressure sensor and the alarm will sound and it will not go much over idle if there isn’t enough oil pressure

    suzuki
    Woodbury, Mn
    Posts: 18039
    #2154052

    Good to hear. Thank you.

    onestout
    Hudson, WI
    Posts: 2684
    #2154094

    They make filters that are anti-drain back, I normally try and use those when I have filters that are mounted horizontally.

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