Fuel drip
- Thread starter Puffin
- Start date
I'd definitely be getting that tank emptied and off and take the fuel pump plate off
What is probably happening is that the fuel filler drain is cracking or porous and letting fuel thru or the pipe clamp is loose
OR the breather thing has fallen off it's mount and is allowing fuel thru it's mechanism
It's not difficult just clean the threads on the pump flange nuts and studs well and get plenty of penetrating oil NOT WD40 on them
Once you lift the flange you will see the breather drain hoses and you need to unclip these before you lift the flange too high
Tips
No more than a gallon of fuel in the tank
Get an old tyre to set the tank "lobe" into and use that to balance and protect the tank in so you are working on a flat surace
Clean the threads and nuts well and use 3 in 1 or similar penetrant and be gentle when you start undoing them if they are tight more wire brushing and penetrant
Don;t just haul the pump flange out! work it gently there is a level float you have to wiggle out too
Check the date on the fuel filter It may well be overdue a change
If you need to re-position the breather thingy you will need to take out the filler cap make sure and order a new O ring for there they ALWAYS swell once the air is at them Or if you are handy with a good clean stanley and superglue you can take a wee length out and glue it back together agaiin
What is probably happening is that the fuel filler drain is cracking or porous and letting fuel thru or the pipe clamp is loose
OR the breather thing has fallen off it's mount and is allowing fuel thru it's mechanism
It's not difficult just clean the threads on the pump flange nuts and studs well and get plenty of penetrating oil NOT WD40 on them
Once you lift the flange you will see the breather drain hoses and you need to unclip these before you lift the flange too high
Tips
No more than a gallon of fuel in the tank
Get an old tyre to set the tank "lobe" into and use that to balance and protect the tank in so you are working on a flat surace
Clean the threads and nuts well and use 3 in 1 or similar penetrant and be gentle when you start undoing them if they are tight more wire brushing and penetrant
Don;t just haul the pump flange out! work it gently there is a level float you have to wiggle out too
Check the date on the fuel filter It may well be overdue a change
If you need to re-position the breather thingy you will need to take out the filler cap make sure and order a new O ring for there they ALWAYS swell once the air is at them Or if you are handy with a good clean stanley and superglue you can take a wee length out and glue it back together agaiin
Stewart H
Registered user
If you sit the big O ring on top of a hot kettle for an hour it will shrink back 
If you sit the big O ring on top of a hot kettle for an hour it will shrink back
Yup
Or a bit of lubrication and manipulation (ooh 'er missus) will usually get them to squidge back into their groove.
Fanum
Toubab
Thanks for the advice guys, looks like a little surgery thenAt least the timing is good (for a change) -9 and Snow. So the GS is off the road until spring
Take a kettle out to the garage, and any time you're trying to put a rubber pipe over a spigot, or route a pipe or whatever, dump it in hot water first
I managed to split a pipe several times, gauge my knuckles and shock the neighbours with my language when I was trying to do similar without the hot water
Take a kettle out to the garage, and any time you're trying to put a rubber pipe over a spigot, or route a pipe or whatever, dump it in hot water first
I managed to split a pipe several times, gauge my knuckles and shock the neighbours with my language when I was trying to do similar without the hot water
More good advice
Thanks Fanum
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