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Thread: MEP-8xx oil draining info

  1. #1
    2 Star Admiral Daybreak's Avatar
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    Default MEP-8xx oil draining info

    Howdy,

    Any skid based MEP-8xx makes it difficult to do a oil drain. You can pick up a pipe to hose connector to temporally use to drain your oil.
    oil drain pipe to hose for skid based.jpg

    For trailer mounted MEP-8xx gensets, part of the BII
    pipe to hose fitting should have been installed.
    oil drain pipe to hose for trailer.jpgoil drain pipe to hose for trailer 1.jpg
    ~~Later Mike

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    4 Star General TNriverjet's Avatar
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    Great info Mike! Thank you. I will be doing this for my next oil change.
    TNriverjet
    -
    2010 MEP-803A (sold)
    -2006 MEP-802A (traded)
    -1996 M-1078 (sold)
    -1997 M-1083 (sold)

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    4 Star General Guyfang's Avatar
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    Works like a charm! No mess, no fuss.

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    I have done the same. Works great!!!
    MEP 803a
    MEP 813a (an oops on my behalf)
    MEP 802a (sold)
    M1078

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    2 Star Admiral Daybreak's Avatar
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    Howdy,
    Any generator on a trailer should have the elbow and hose installed. It makes the oil change clean and painless.
    ~~Later Mike

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    4 Star General Light in the Dark's Avatar
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    What is the size of this elbow, or what thread dimension should I be looking for? Gravity drain without control sucks. Thanks!

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    2 Star Admiral Daybreak's Avatar
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    Howdy,
    I believe its 3/4"

    NSN 4730-00-940-0947 part# MS24519-7 ELBOW,PIPE TO HOSE

    You just need a 3/4" pipe to hose barb elbow. The hose is listed being 18 inches. I just installed a 3 ft piece and then cut it to where I wanted. So, the length would drop right into a 5 gal bucket.
    ~~Later Mike

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  12. #8
    4 Star General Light in the Dark's Avatar
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    Quote Originally Posted by Daybreak View Post
    Howdy,
    I believe its 3/4"

    NSN 4730-00-940-0947 part# MS24519-7 ELBOW,PIPE TO HOSE

    You just need a 3/4" pipe to hose barb elbow. The hose is listed being 18 inches. I just installed a 3 ft piece and then cut it to where I wanted. So, the length would drop right into a 5 gal bucket.
    I looked that up on another site, and came up with this

    Nominal Inside Diameter Hose Accommodated (CWDW):
    0.375 inches 2nd end
    Nominal Pipe Size Accommodated (AAAR):
    0.250 inches 1st end
    Nominal Thread Size (CQJX):
    0.250 inches 1st end

    Which a 3/8 NPT would have an OD of about .675 (3/8 ID). I bought two straight adapters at NAPA on my way home earlier... gonna try out the 3/8 and see if she works (and will report back).
    Last edited by Light in the Dark; 10-07-2016 at 12:01.

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    4 Star General Light in the Dark's Avatar
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    Ok, so it was the 1/2" NPT fitting that works perfectly. NAPA didnt have anything in stock in right angle, but this one works great. Nickel plated and $3. Got a single ft. piece of rubber tube to fit over it and we are golden.

    Draining and hopefully playing with my new 802A today.

    Fitting - https://www.napaonline.com/napa/en/p/NTH90666/NTH90666
    Hose (1ft) - https://www.napaonline.com/napa/en/p...0110/WH_H10110
    and a .99 hose clamp
    Last edited by Light in the Dark; 10-07-2016 at 13:21.

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    4 Star General Light in the Dark's Avatar
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