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  1. #1

    Default Help identify distributor (pics) for Mercruiser 5.7L competition ski motor

    Hey all. I recently bought a 1990 Sanger Ski boat with a Mercruiser 5.7L inboard direct drive motor. According to the motor serial (0C771828) the engine's model # is 3579111CS.

    I thought I had the Mallory distributor so I ordered Pertronix electronic ignition kit part # MC-181 to replace the points. However, it does not appear to be the right kit after diving in to do the swap.

    I can't figure out which distributor I have as there does not appear to be any identifying marks on it anywhere other than the SAE decal. Can any of you help identify which distributor this is and perhaps even which Pertronix kit I would need?

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  2. #2
    Join Date
    Sep 2010
    Location
    Jersey Shore
    Posts
    4,565

    Default Re: Help identify distributor (pics) for Mercruiser 5.7L competition ski motor

    It is a Mallory and I would not convert it. Install the Delco EST setup yo will be much happier.
    Chris
    Dockside Marine Services
    Jersey Shore.
    Mercruiser/Mercury Certified
    Let the insanity begin.

  3. #3
    Join Date
    Jun 2006
    Location
    Spotswood, NJ, USA
    Posts
    3,809

    Default Re: Help identify distributor (pics) for Mercruiser 5.7L competition ski motor

    keep the points, they will make spark under the worst of conditions

  4. #4
    Join Date
    Mar 2009
    Location
    Portland, Oregon,
    Posts
    9,090

    Default Re: Help identify distributor (pics) for Mercruiser 5.7L competition ski motor

    That is an old Mallory YL unit! It's painted black like what Merc did years ago.

    I would not convert using the Pertronix junk!!!!

    .
    Rick ... aka Ricardo..... AQ series Volvo Penta repair
    Portland, Oregon
    28' SDN F/B w/ twin Volvo Penta 5.7L DP's

    Please... no PMs! Post your questions on the forum.

  5. #5
    Join Date
    Dec 2015
    Location
    maplevalley WA
    Posts
    3,469

    Default Re: Help identify distributor (pics) for Mercruiser 5.7L competition ski motor

    I agree what is the reason your getting rid of the points? Set the points using a dwell meter and check the progressive spark advance. If it is within spec run with it.
    It takes a nickle to go first class!
    If it aint broke dont fix it!!

  6. #6
    Join Date
    Sep 2003
    Location
    New Tripoli, PA, USA!
    Posts
    15,190

    Default Re: Help identify distributor (pics) for Mercruiser 5.7L competition ski motor

    Most reliable, easy to fix (out THERE) system ever devised.

    Jeff

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