Want to switch to Philips head –gears case screws RDE-17 1955 Johnson 25 hp

Home Forum Ask A Member Want to switch to Philips head –gears case screws RDE-17 1955 Johnson 25 hp

This topic contains 15 replies, has 6 voices, and was last updated by Avatar lloyd 5 months, 1 week ago.

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  • outboardnut
    outboardnut
    US Member - 1 Year
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    #166314

    Well-I messed up the slotted screws(33-76) that fasten the clam shell gear case together. It was mentioned before that OMC later went to Philips head. Hopefully these Philips head are the same size (head and length) as my slotted screws.
    The slotted screw I have are ¼-20
    Does anyone know the part number of said Philips head screw so I can put an ad in the classifieds??????

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    Buccaneer
    Buccaneer
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    #166317

    33-76 is the original part number, but I don’t get any “hits” searching
    for them, even if I add a couple of zero’s as such……. 003376

    The 1957 35 hp shows…… 0330562 , available on MarineEngine.com,
    but they don’t appear to be phillip head either.

    Prepare to be boarded!

    • This reply was modified 5 months, 1 week ago by Buccaneer Buccaneer.
    • This reply was modified 5 months, 1 week ago by Buccaneer Buccaneer.
    outboardnut
    outboardnut
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    #166321

    33-76 (slotted) is what I have
    I am looking for Philips head part number
    Maybe the question should be –
    What year did OMC start using Philips head on their calm shell gear cases?

    frankr
    frankr
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    #166323

    For whatever it is worth, the 1970 33hp catalog lists the number as 304070. Taking that number to ME, it is superseded by 0330562—-a hex head screw. How ’bout that one?

    • This reply was modified 5 months, 1 week ago by frankr frankr.
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    dave-bernard
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    #166325

    Why not got to the hardware store and buy what you need. in SS.

    outboardnut
    outboardnut
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    #166326

    That would be great if I knew I could get a socket on it
    The walls of the recess might get in the way
    I would have to assume it is 1/4 – 20 and 7/8 in length threads.

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    frankr
    frankr
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    #166330

    OK, my 1955 catalog says your motor takes 304070, which ME supersedes to 0330562 hex head. So if we can believe what it says, the 0330562 should work in your motor. It obviously has a small hex, likely 5/16″ (???).

    The picture you posted is what ME shows for 0330562.

    • This reply was modified 5 months, 1 week ago by frankr frankr.
    • This reply was modified 5 months, 1 week ago by frankr frankr.
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    outboardnut
    outboardnut
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    #166335

    The screw needs to have the built in washer

    outboardnut
    outboardnut
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    #166336

    I did a little test
    I believe a 5/16 will clear the wall of the cavity

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    outboardnut
    outboardnut
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    #166340

    Frank I sure would like to see your library
    I don’t know how you translated 33-76 to 304070/ 0330562
    But I believe you
    Now to find nine of them cheaper than 4.75 a piece
    Maybe Ed or Ken will have some

    outboardnut
    outboardnut
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    #166343

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    Tubs
    Tubs
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    #166347

    How about socket heads in stainless steel?

    • This reply was modified 5 months, 1 week ago by Tubs Tubs.
    frankr
    frankr
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    #166356

    I cheated. I used the 1955 Evinrude parts book. Shows 304070. ME updated it from there

    • This reply was modified 5 months, 1 week ago by frankr frankr.
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    outboardnut
    outboardnut
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    #166360

    The circumference of the head of the Allen screw is smaller than original
    .

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    outboardnut
    outboardnut
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    #166364

    Also remember this thread

    Alternative gear case screw??? 1955 RDE-17 25 hp Johnson

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