BMW K bikes (Bricks)


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1Back to top Go down   Oil Leak from front of motor Empty Oil Leak from front of motor Wed May 11, 2011 2:10 am

club_c

club_c
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I have this infuriating little oil leak at the front of the motor that I cannot find. Thought it was the cam timing chain cover and resealed it 3 times, so that's not it, then thought Hall Sensor cover but that's not it, so now I'm thinking water/oil pump cover. The question is, if I pull off the cover, what happens? Does oil and coolant gush out, or just weep a bit? Or does it not leak oil ever so look somewhere else?

    

2Back to top Go down   Oil Leak from front of motor Empty Re: Oil Leak from front of motor Wed May 11, 2011 4:15 am

Jhepburn

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The Haynes manual says to drain everything. I'm guessing you'll get a gusher if you don't.

I was advised by my mechanic that an oil seep I have (doesn't make it to a drip, just coagulates slightly) was a sign I would have to consider that repair down the track.

So yes, examine that option, and drain your fluids first. Always good to refresh them, anyway.

    

3Back to top Go down   Oil Leak from front of motor Empty Re: Oil Leak from front of motor Wed May 11, 2011 4:23 am

Crazy Frog

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I have seen an oil leak on the oil pressure sensor. (on the side of the pump)
It was difficult to locate because the electrical connection is covered by a rubber cap. The leak was the sensor itself and not the thread.


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Oil Leak from front of motor Frog15Oil Leak from front of motor Logo2101986 k75, 1985 K100rt, 1985 K100rt/EML GT2 sidecar, 1999 K1200lt/Hannigan Astro Sport sidecar.
    

4Back to top Go down   Oil Leak from front of motor Empty Re: Oil Leak from front of motor Wed May 11, 2011 8:26 am

blaKey

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club_c, if the oil is not really leaking much, wait until the next time you change your oil.

If it's just the oil pressure sensor and you need to change it urgently, just tilt the bike back and that should be enough to stop the oil pouring out of the hole when the sensor is removed.

I have the same leak as you...I'll wait until you fixed yours before I fix mine! Very Happy


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Neil
K100RS 1986 RED!

Dress for the ride and the potential slide.
    

5Back to top Go down   Oil Leak from front of motor Empty Re: Oil Leak from front of motor Wed May 11, 2011 11:14 am

charlie99

charlie99
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hey club c ......there is a small hole at the bottom of the oil pump which is the breather for both the water pump and oil pump .
from reading through here, the bmw folks designed it to be an indicator for the state of the bushings/seals on the pump drive shaft.

the actual hole location is slightly behind and more towards the back near the "sump"

i wonder if this is what you are seeing ???


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cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O
'86 k100 rs.. #######..  "Fred " (f(rame) red ) ( Fredrick leichtundschnell ) - -
bits and pieces from many kind friends across the k100 world ...with many thanks ..
1987 k100rs ########   "Red"  - (red sports rs TWB style )
1989 K100rt #009637   "Black Betty"  (naked rt ala Nigel , now sporting an rs main fairing )
    

6Back to top Go down   Oil Leak from front of motor Empty Re: Oil Leak from front of motor Wed May 11, 2011 5:44 pm

reg_K100RS

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the hole charlie mentions is front bottom of the motor
and you'll get coolant if the water pump seal fails and oil if the oil pump seal fails
It may be your pressure sender of course, but any leaks on the top of the
water/oil pump gasket make their way out here too so its not always apparent.

If you take the front cover off, coolant will gush out so drain coolant into a cleanbucket first
you wont lose any oil though, unless you go further.
Its a face to face seal so no new gasket required to have a look around.and clean all the
accumulated crap out of the nooks and crannies

    

7Back to top Go down   Oil Leak from front of motor Empty Re: Oil Leak from front of motor Thu May 12, 2011 5:23 am

club_c

club_c
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So a closer look would indicate it's above the oil/water pump. I'm back to thinking it's the cam chain cover Sad I think I'll spray some deodorant powder or foot powder in the area and track it's progress...

    

8Back to top Go down   Oil Leak from front of motor Empty Re: Oil Leak from front of motor Thu May 12, 2011 5:56 am

ReneZ

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We'll wait for a picture or further infio meantime Oil Leak from front of motor 340248


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Greetings from Florida Australia! Having a 'new' K     Surprised-o: 

Rene


BMW K100 - 1985 (0030029) Scotland Oil Leak from front of motor Rain
BMW K1200GT - 2003 (ZK01223) Florida
BMW K1200GT - 2004 (ZK27240) Australia
    

9Back to top Go down   Oil Leak from front of motor Empty Re: Oil Leak from front of motor Thu May 12, 2011 5:59 am

charlie99

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ReneZ wrote:We'll wait for a picture or further infio meantime Oil Leak from front of motor 340248

aye !!!...rene ....

    

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