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K100-forum.com » Technical, repair and troubleshooting » Engine and transmission » Fuel tank leaking

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

DaleRT

DaleRT
Silver member
Silver member
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 - 
Fuel tank leaking Img_2010
Fuel tank leaking Img_2011
   Could fuel leak out of here, those pin holes and can it be fixed ?   Cheers Dale

    

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

Inge K.

Inge K.
VIP
VIP
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.


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

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

critter

critter
active member
active member
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 - 
Fuel tank leaking Img_2010
Fuel tank leaking Img_2011
   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   Fuel tank leaking Empty Re: Fuel tank leaking Tue Sep 12, 2017 8:43 am

Rick G

Rick G
admin
admin
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.


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1999 K1100 LT with a Big Block 1200
    

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

DaleRT

DaleRT
Silver member
Silver member
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   Fuel tank leaking Empty Re: Fuel tank leaking Tue Sep 12, 2017 9:11 pm

Stan

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


__________________________________________________
1983 K100 basic vin 0003960 colour red  GONE
1987 K100RT vin 0094685 colour, orange peel, sorry, pearl..GONE
F800R black
    

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

DaleRT

DaleRT
Silver member
Silver member
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   Fuel tank leaking Empty Re: Fuel tank leaking Sun Sep 24, 2017 7:16 am

indian036

indian036
Life time member
Life time member
Fuel tank leaking 112350


__________________________________________________
1985 K100RT  VIN 0028991  My original Very Happy ROB the Red Old Bike   (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  Tom the Triple (now on Historic rego too.)
    

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

club_c

club_c
Life time member
Life time member
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!


__________________________________________________
"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   Fuel tank leaking Empty Re: Fuel tank leaking Mon Sep 25, 2017 4:02 am

charlie99

charlie99
VIP
VIP
good to hear dale

cheers


__________________________________________________
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 )
    

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

92KK 84WW Olaf

avatar
Life time member
Life time member
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.


__________________________________________________
1992 K100LT 0193214 Bertha Blue 101,000 miles
1984 K100RT 0022575 Brutus Baja Red 578 bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Wotan Mystic Red 689 58,645 now 106,950 miles Deceased.
1983 K100RS 0011157 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 58,200 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 51,800 miles.
1983 K100RS 0004449 Odette R100 colours 58,000 miles. Sprint fairing now 63,390 miles

Past:
1968 Yamaha 80 YG1
1971 Yamaha 125 YAS-1
1968 Honda 125 SS
1970 Honda CD 175
1973 Honda CB500-4
Honda CX 500
    

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