BMW item identification help

Discussion in 'Airheads' started by tommcbride, Nov 2, 2012.

  1. tommcbride

    tommcbride Long timer

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    Jan 28, 2003
    Oddometer:
    1,091
    Location:
    Long Beach, Ca.
    Hi GANG!

    I have a BMW 247 motor that has a screw in the left side of the case just under the oil level indicator switch

    [​IMG]

    Anyone have any idea what this is for?

    It appears the ONLY way to access this is to remove / loosen the motor from the frame.....:huh

    Thanks in advance.
    #1
  2. dave0

    dave0 Adventurer

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    Sep 23, 2012
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    Most likely an oil galley plug. No reason to eff with it unless you're in the middle of a complete engine teardown.
    #2
  3. bmwrench

    bmwrench Long timer

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    Nov 10, 2006
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    2,516
    It's the driling to the the oil pump. A similar one can be seen at the rear of the crankcase. The rear drilling intersects the side one and delivers oil to the oil filter cannister.

    Since these plugs see full pressure from the pump, they can be difficult to seal. I remove them and spray the threads and passages repeatedly with alcohol-based brake cleaner. When oil stops emerging-and this can take a full day-I apply Loctite 272 (red) to the plugs and screw them back in. Give the Loctite time to cure and/or apply some heat to speed the process. You will need to jack up the back of the motor, but this can be done without removing drive shaft bolts, etc.
    #3
  4. tommcbride

    tommcbride Long timer

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    So, it's just a PLUG, nothing more nothing less? :ear
    #4
  5. tommcbride

    tommcbride Long timer

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    Seems you are spot on dave0 :freaky
    #5
  6. kbasa

    kbasa Roubaix! Super Moderator

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    Moved to airheads
    #6