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Thread: D7 7m engine oil loss

  1. #11
    Join Date
    Jan 2007
    Location
    devon uk
    Posts
    1,412

    Default

    The main flywheel housing is, or should be dry on a D7 of this vintage, take the cover off and look inside.

  2. #12
    Join Date
    Sep 2009
    Location
    Asotin, Wa
    Posts
    1,178

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    Yes the master clutch should be dry, and depending on the SN it might even be open. Mine is. I think I would do the following.

    Remove the plug from the pony clutch, make sure the Diesel oil is at the proper level, start the Diesel then drain the pony oil. They donít hold much, then you could observe the volume of oil entering the pony crankcase. If thereís no oil dripping from the Clutch then youíd know you have a hole in the block of some sort.

    Perhaps itís a block repair from the past thatís failed. Keep us posted whatever you find.

    Good luck

    Bruce P.
    Last edited by Bruce P; 11-11-2017 at 05:27 PM.
    Two Ton, Diesel 35, Diesel 40, No.11 AutoPatrol ,(3) 4G D4's, 5U D2, 17R D6C, 9G D7, 7M D7

  3. #13
    Join Date
    Sep 2011
    Location
    Burnsville NC
    Posts
    16

    Default

    Thank you Old Magnet I will post what I find as soon as I get into it.

  4. #14
    Join Date
    Sep 2011
    Location
    Burnsville NC
    Posts
    16

    Default

    Thanks also Bruce P.

  5. #15
    Join Date
    Nov 2006
    Location
    Corralitos, Ca.
    Posts
    13,169

    Default

    What is your s/n? 7M4325 has enclosed main engine clutch but that still does not explain your oil gain if the pony clutch housing is dry.

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