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Thread: chip

  1. #1
    Cadet
    Join Date
    Aug 2012
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    Default chip

    Hi all
    I have a size 50 cents chip on the trailing circular edge of my propeller hub. How will this affect performance/durability ? I haven't yet time to put boat back in water. Engine is a mariner 150. thank you.

    joe

  2. #2
    Chief Petty Officer theBrownskull's Avatar
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    Jun 2012
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    Default Re: chip

    It might cause some performance issues or if severe damage to the unit itself if out of balance. If it is aluminum it should not be that hard to fix it unless there is other damage. Take it to a prop shop and have them check it out that it what I would do. Now stainless props can be a different story.
    Current boat: 2011 Tahoe 216WT 5.0 MPI / Alpha 1.47:1 gear ratio / 17p SS prop. /Monster Tower
    Tow Veh: 2005 GMC Sierra 4x4 crew cab
    Former boats: 1969 Glasspar, 1978 Crestliner and 1997 Starcraft 1810SS

  3. #3
    Cadet
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    Default Re: chip

    Thanks brown
    mine's aluminum

  4. #4
    Supreme Mariner
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    16,757

    Default Re: chip

    As far as performance you may find the prop gets fouled with exhaust in reverse.

  5. #5
    Cadet
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    Aug 2012
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    Default Re: chip

    thanks steel
    on related issue,
    on medium to high revs under load the engine is hunting , revs fluctuating, a sort of punching sound sometimes.
    Could this a prop issue ? or probably something else ?
    pardon any obvious as i newbie to outboards.

    j

  6. #6
    Petty Officer 2nd Class 1FASTLASER's Avatar
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    Dec 2006
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    Southeast Arkansas
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    158

    Default Re: chip

    Like steelspike said and your statements have indicated your motor is experiencing flow problems be it exhaust or water to the blades. NOT a good thing and needs to be addressed before more damage happens.

  7. #7
    Cadet
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    Default Re: chip

    Righto, will remove prop and repair it straightaway
    thanks

  8. #8
    Cadet
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    Aug 2012
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    Default Re: chip

    Hey all
    Just before I started removing the prop, I noticed a oil leak at the prop hub to leg joint. Seal failure I guess. Anyway prop was removed and first oil seal removed. But it is impossible to remove,knock out the inner housing to get to the inner seal. Is there a special tool or puller for doing this ? Any suggestions pls. Ta .

  9. #9
    Ensign etracer68's Avatar
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    Oct 2009
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    SE, Wisconsin
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    904

    Default Re: chip

    Most times, the oil that your seeing is, unburnt fuel/oil, and not the seal. A pressure test should be done before removing any seals. Just my .002
    1987 16Ft F/S Yar-Craft
    1987, 90HP Johnson/ (3) 1971-1972, 7.5HP Merc/ 1991, 4HP Mariner/1985, 2.2HP Merc (new never started)

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