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  1. #1
    Mercury 3L/4 Stroke/Verado Moderator EuropeanAM's Avatar
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    V6-V8 Fourstroke Exhaust Cooling Strainers- Cleaning

    There are a couple-styles of Upper Exhaust Strainers out there for V6/V8 Fourstroke Product. Most of them are quite simple to remove, clean and reinstall.

    See below pictures for examples:

    Item #19 denotes the two different types of primary strainer:




    Item # 18 above denotes the TUBLULAR type of strainer- simply remove the HOSE (#15)
    and then pull the strainer out of the nipple the hose attached to.

    If there is a bolt in #19 as referenced in the right-side of the above image, the strainer is a basket-style and requires removal of at least one bolt:



    Remove the hose, the ONE bolt (8mm head), and then extract the basket-style strainer for cleaning:








    The YELLOW "Twist-out" strainer is quite simple to clean:




    ALL of these strainers should be cleaned as part of your regular ANNUAL or 100hr Maintenance: MORE OFTEN IF RUNNING IN DEBRIS LADEN WATER AREAS.
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    Last edited by EuropeanAM; 04-08-2024 at 05:31 PM.


    Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
    Still consider myself a "Marine Apprentice" after 47 years (learn something new every day).
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    #2
    needs pinned at the top also
    2022 z519 cup 225 merc 4s ser # 3B210484. 2--hds12 live units. 2 poles, atlas plate, ghost, hamby's, active target, merc digital gauges
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  3. Mercury 3L/4 Stroke/Verado Moderator EuropeanAM's Avatar
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    #3
    It's pinned in the FAQ Section now.


    Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
    Still consider myself a "Marine Apprentice" after 47 years (learn something new every day).
    Mercury Parts, Mercury Outboards, Smartcraft & Accessories, Injector Service, TDR Reeds- BBC Sponsor