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  1. 06-09-2022, 08:57 PM #1
    chillywillie
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    Increase water psi - scoops, plug holes?

    88 Mariner Mag II serial 0b384013 on a 89 Gambler 183 running the larger gear case with 8 pickup holes on each side of the gear case, casting # is 1647 9147. Is the correct part # for the inlet plate kit (“scoops”) 17280A 2?

    Motor currently 4” below pad (high as I can get it where it is currently mounted on jackplate), would like to raise it but water pressure is around 12-15 psi so looking to increase that before I raise the motor. Would blocking off the top 2 or 3 holes as well be beneficial?


    Thanks!
    Willie
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  2. EuropeanAM
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    #2 06-10-2022, 03:20 PM
    Either would probably work for that setup. Recommended method is the high-speed scoops.


    Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
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  3. chillywillie
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    #3 06-10-2022, 03:23 PM
    Thanks as always Don!

    Is 17280A 2 the right part # for the kit to cover the 8 hole pickups? And whatever the right part is, are you still able to get it?
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  4. EuropeanAM
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    #4 06-10-2022, 03:27 PM
    For an 8-hole pickup: Yes.


    Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
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  5. pgs
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    #5 06-11-2022, 01:07 PM
    I just wanna say.
    I was In the same situation with my promax. I got the scoops. Installed myself. Wow they work great. Much better pressure across the whole RPM range.
    can
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