Oil Drain Plug size
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    Default Oil Drain Plug size

    Hi Folks - does anyone know the correct size cap for the drain plug at the bottom of the pan on a circa 1942 CK lathe?

    OD of the pipe seems to measure 1 3/8...but there is a ton of paint on there...so maybe 1" or 1 1/4" NPT?

    Thanks

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    Thanks............

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    Quote Originally Posted by edl View Post
    Hi Folks - does anyone know the correct size cap for the drain plug at the bottom of the pan on a circa 1942 CK lathe?

    OD of the pipe seems to measure 1 3/8...but there is a ton of paint on there...so maybe 1" or 1 1/4" NPT?

    Thanks
    1" Pipe has an OD of 1.315, I think that's your best bet. So 1" - 11.5 NPT.

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    correct! - bought a 1" NPT cap yesterday at Home Depot - fits perfectly

    thanks again

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    Quote Originally Posted by edl View Post
    correct! - bought a 1" NPT cap yesterday at Home Depot - fits perfectly

    thanks again
    As perfectly as a chinese pipe fitting will fit anyway.......


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