BMW K bikes (Bricks)

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1Back to top Go down   Fuel tank leak Empty Fuel tank leak Wed Aug 21, 2019 3:02 am

Porto

Porto
active member
active member
My tank has deteriated underneath where sender is mounted on the inside. It’s a large hole with a few pin holes around. I’m certain how to proceed and am worried that other tanks will have same problem. Can any one advise or help?Fuel tank leak B8592d10
Fuel tank leak 6eb3a110 Fuel tank leak B8592d10
Fuel tank leak 6eb3a110

https://gpleather.com
    

2Back to top Go down   Fuel tank leak Empty Re: Fuel tank leak Wed Aug 21, 2019 3:34 am

charlie99

charlie99
VIP
VIP
hi porto ,

many have experienced the same

if you can find a fabricator , that will work by welding a fuel tank , many wont look at it hands down , but there are some out there

usually a plate welded to cover the hole will work fine , BUT , be aware that up the side of the tank in the same area is another likely weak point , where oxidisation has thinned out the aluminium skin , as you have seen near the fuel pump . its a low point in the tank where water will sit and oxidise away un-noticed for years

whilst its apart ...probe in that area and get it done at the same time

good luck


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

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%OFuel tank leak Au-log10

'86 k100 rs.. #######..  "Fred " (f(rame) red ) ( Fredrick leichtundschnell ) - -
bits and pieces from many kind friends across the k100 world ...with many thanks ..
    

3Back to top Go down   Fuel tank leak Empty Re: Fuel tank leak Wed Aug 21, 2019 4:13 am

Porto

Porto
active member
active member
Thanks Charlie,
That all makes sense now mate. I will start looking for a welder now. I was worried I would have to try and apoxi it up .

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4Back to top Go down   Fuel tank leak Empty Re: Fuel tank leak Wed Aug 21, 2019 4:19 am

Matthew-Brisbane

Matthew-Brisbane
Life time member
Life time member
There a welder up here in Brisbane  which did mine  but that wont help unless your posting it up    

I had 8  holes in mine and then he pressure tested it  for me


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1986 K100 RS Motorsport
#### K100 RS Project 
2011 R1200 GS
    

5Back to top Go down   Fuel tank leak Empty Re: Fuel tank leak Wed Aug 21, 2019 7:21 am

Gaz

Gaz
Life time member
Life time member
I agree with Charlie - go for a weld repair rather than epoxy.

I've had K bike tank leaks welded up in both Sydney & Maitland. Might be worth seeking out marine fabricators who work with aluminium all the time.

Cheers


__________________________________________________
Gaz
1990 K75 6427509; 1987 R80G/S PD 6292136; 2010 G650GS ZW13381; 95 K1100LT 0232224
    

6Back to top Go down   Fuel tank leak Empty Re: Fuel tank leak Tue Aug 27, 2019 5:04 am

Porto

Porto
active member
active member
Thanks for the advise fellas. I’ve filled it with an epoxy to hopefully keep me going till I find a welder near me. I’m hoping it seals it or at least plugs it so it’s just seaping a little. I can’t cope having it off the road. I’ll start checking marine places for tank welders.

https://gpleather.com
    

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