BMW K bikes (Bricks)

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1Back to top Go down    Fuel tank leaking on Tue Sep 12, 2017 6:05 am

DaleRT

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Hi, Fuel tank leaking fuel. Been parked for a couple of weeks. 
   Around/ under the rear of the tank is wet with fuel [not pooling]. 
   Removed tank and fuel [6lt] no signs of corrosion inside or outside of the tank. 
   Removed fuel sender unit to replace 'O' ring seal and noticed this on the electrical imput - 


   Could fuel leak out of here, those pin holes and can it be fixed ?   Cheers Dale

    

2Back to top Go down    Re: Fuel tank leaking on Tue Sep 12, 2017 7:41 am

Inge K.

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@DaleRT wrote:and noticed this on the electrical imput - 
   Could fuel leak out of here,

No, it's just a cover over the solder connections.


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Inge K.
K100RS -86. (first owner), K1100LTSE -94.
    

3Back to top Go down    Re: Fuel tank leaking on Tue Sep 12, 2017 7:46 am

critter

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@DaleRT wrote:Hi, Fuel tank leaking fuel. Been parked for a couple of weeks. 
   Around/ under the rear of the tank is wet with fuel [not pooling]. 
   Removed tank and fuel [6lt] no signs of corrosion inside or outside of the tank. 
   Removed fuel sender unit to replace 'O' ring seal and noticed this on the electrical imput - 


   Could fuel leak out of here, those pin holes and can it be fixed ?   Cheers Dale
anything is possable leaking and fixing might be just as easy to replace if have any douts

    

4Back to top Go down    Re: Fuel tank leaking on Tue Sep 12, 2017 8:43 am

RicK G

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Put a new O-ring in it and see what happens, it will probably be OK as most O-rings have a 10 year life span and I will bet it hasn't had a new one since it left the factory.


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"Every normal man must be tempted, at times, to spit upon his hands, hoist the black flag, and begin slitting throats."  from Mencken's 1919 Prejudices

Bikes 1993 K1100 LT, 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki X 2 for now
    

5Back to top Go down    Re: Fuel tank leaking on Tue Sep 12, 2017 8:45 pm

DaleRT

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Thanks for you’re responses.
   Will be doing a new ‘O’ ring. The old one is hard & cracks when it’s flexed.

      Thanks again   Dale

    

6Back to top Go down    Re: Fuel tank leaking on Tue Sep 12, 2017 9:11 pm

Stan

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If you have a hydraulics supplier near by, take the old o ring to them and explain what you need... will be cheaper.


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1983 K100 basic vin 0003960 colour red
1987 K100RT vin 0094685 colour, orange peel, sorry, pearl
    

7Back to top Go down    Re: Fuel tank leaking on Sun Sep 24, 2017 6:50 am

DaleRT

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Replaced the rubber 'O' ring. 
   The tank has been of the bike with fuel in it for this week and no leaking, all is dry. 
      Thanks again.   Cheers   Dale

    

8Back to top Go down    Re: Fuel tank leaking on Sun Sep 24, 2017 7:16 am

indian036

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1985 K100RT  VIN 0028991  My original Very Happy   (Historic rego)
1985 K100RT  VIN 0029036  BOB the Blue Old Bike  (Historic rego)
1990 K100LT  VIN 0190452  Work in progress
1984 K100RT  VIN 0023022  Work needing lots of progress

1986 K100RT  VIN 0090542  Work needing lots and lots of progress
1993 K1100LT  VIN 0183046  Work in progress
1993 K75S  VIN 0213045  Newest toy, slightly non-original
    

9Back to top Go down    Re: Fuel tank leaking on Mon Sep 25, 2017 2:37 am

club_c

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It's a global epidemic, mine was also puking last month.  Also had to replace the burst fuel supply line the following week.  The burst fuel line is not a recommended roadside fix.  Replace these hoses while you have the tank off and in your shop rather than calling the mrs. to pick you up roadside and drive you to an auto supply place.  Cheap insurance!


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"There's never enough time to do it right, but there's always time to do it over."

1988 K100RS SE VIN 01477554
    

10Back to top Go down    Re: Fuel tank leaking on Mon Sep 25, 2017 4:02 am

charlie99

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good to hear dale

cheers


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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
    

11Back to top Go down    Re: Fuel tank leaking on Mon Sep 25, 2017 12:58 pm

92KK 84WW Olaf

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@club_c wrote:It's a global epidemic, mine was also puking last month.  Also had to replace the burst fuel supply line the following week.  The burst fuel line is not a recommended roadside fix.  Replace these hoses while you have the tank off and in your shop rather than calling the mrs. to pick you up roadside and drive you to an auto supply place.  Cheap insurance!

Make them about 1 1/2" longer and you can do servicing like access coolant filler cap and access the relay box without removing the tank. . . but very wise advice if you buy a K of unknown history replace those hoses because the will leak darn quick.


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1992 K100LT 0193214 Alaska Blue 101,000 miles
1984 K100RT 0022575 Baja Red bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Mystic Red 58,645 now 74,700 miles
    

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