Author Topic: Help me I.D. this leak.please =)  (Read 4116 times)

Offline shay_mcquaid

  • Curious
  • Posts: 1
Help me I.D. this leak.please =)
« on: April 18, 2014, 05:41:10 PM »
Like the title says, I have a leak.
Oil probably.

Is this a common one?
Any help would be appriciated :2thumbup:

Offline mystic red

  • Retired Professsional Driver
  • ^ Quintessential Motobricker
  • Posts: 2922
Re: Help me I.D. this leak.please =)
« Reply #1 on: April 18, 2014, 08:19:42 PM »
Clean it up thoroughly and watch to see where it is exactly coming from. Hard to tell. Not common IMHO

Offline Elipten

  • ^ SuperNatural Motobricker
  • Posts: 715
Help me I.D. this leak.please =)
« Reply #2 on: April 18, 2014, 09:36:34 PM »
That High up and back. Starter o-rings or alternator area?
  • San Antonio, TX
  • 1990 K75RT

Offline wmax351

  • ^ Quintessential Motobricker
  • Posts: 1237
Re: Help me I.D. this leak.please =)
« Reply #3 on: April 18, 2014, 09:42:18 PM »
Maybe the alternator seal? Oil gets out and is spun off by the alternator drive. Only thing I could think of that would get oil that high up.


Check to see if the stuff on the right is brake fluid.


The other thing could be an overfilled transmission spitting it out the vent.
  • Albuquerque, NM
  • 91 BMW K75 Standard, 98 Moto Guzzi California EV
Bikes:
Current:1991 BMW K75 Standard, 1998 Moto Guzzi California EV11
Past: '83 BMW R65LS, '75 Honda CB550F, '69 Honda CB175, 1999 Royal Enfield Bullet 500, 1973 Triumph Tiger TR7V, 1971 BMW R75/5 in Toaster outfit, 1979 Harley Davidson XLS-1000 Sportster Roadster

Offline pallum

  • ^ Proficient Motobricker
  • Posts: 192
Re: Help me I.D. this leak.please =)
« Reply #4 on: April 20, 2014, 03:58:01 PM »
I actually had the exact same leak pop up last week. I pulled the alternator as it was my first guess, but it wasn't very wet by the drive dog. When I popped the transmission fill plug there was quite a bit of pressure built up inside the transmission so I was thinking it might be a faulty transmission breather valve? I dunno yet, I cleaned the areas up and am waiting until the wetness reappears--- updates to come...
  • Federal Way, WA
1994 K75RT 45,000 miles (Apr 2020)
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Offline Inge K.

  • ^ Quintessential Motobricker
  • Posts: 1451
Re: Help me I.D. this leak.please =)
« Reply #5 on: April 20, 2014, 04:12:56 PM »
There isn't any valve in the gearbox breather, you find it under the starter.
I would guess that a lot of old debris under the starter covers the plastic cap bottom/sides.
  • Norway

Offline ReneZ

  • ^ Motobrick Curious
  • Posts: 54
Re: Help me I.D. this leak.please =)
« Reply #6 on: April 21, 2014, 07:48:02 AM »
Or the drain hose has come of the accumulator tray underneath the fuel tank spigots (the two drain pipes) and what you look at is fuel/drain water. Nothing else really can drain on the top frame bolt like it shows.
Greetings, Rene

BMW K100 - 1984
BMW K1200GT - 2003

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