My petrol tank is leaking and I want to empty it a bit more quickly
and safely. Can I syphon the petrol out, or is it more complicated
than that?
John Williamson - 21 Feb 2008 19:28 GMT
> My petrol tank is leaking and I want to empty it a bit more quickly
> and safely. Can I syphon the petrol out, or is it more complicated
> than that?
Drain plug on the bottom of the tank, I believe. Probably corroded
solidly into the tank base, though, so it may damage the tank as you
extract it. You'll need something as wide as the tank base to be sure of
catching it all.
If not, then you'll need to remove the filler pipe at the tank end &
syphon it out that way, as most of the ones I've seen have a filter mesh
in the filler pipe which works quite effectively as an anti syphon device.

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John.
Dougal - 21 Feb 2008 19:41 GMT
>> My petrol tank is leaking and I want to empty it a bit more quickly
>> and safely. Can I syphon the petrol out, or is it more complicated
[quoted text clipped - 4 lines]
> extract it. You'll need something as wide as the tank base to be sure of
> catching it all.
Brass plug usually - it'll come out.
You don't have to dump the entire contents in one go but a wide topped
container is helpful: wind is not.
> If not, then you'll need to remove the filler pipe at the tank end &
> syphon it out that way, as most of the ones I've seen have a filter mesh
> in the filler pipe which works quite effectively as an anti syphon device.
Dougal - 21 Feb 2008 19:34 GMT
> My petrol tank is leaking and I want to empty it a bit more quickly
> and safely. Can I syphon the petrol out, or is it more complicated
> than that?
Just drive it round the block a few times!
Syphoning works but there may be an anti-syphon grid - although I can't
see it in the parts book.
I think that you'll also have a drain plug - just make sure that you
have lots of ventilation, don't do the task over a pit, no naked flames,
no making/breaking of electrical connections etc..
Oily - 21 Feb 2008 21:23 GMT
> > My petrol tank is leaking and I want to empty it a bit more quickly
> > and safely. Can I syphon the petrol out, or is it more complicated
[quoted text clipped - 8 lines]
> have lots of ventilation, don't do the task over a pit, no naked flames,
> no making/breaking of electrical connections etc..
And if it's one of those pattern tanks it won't have a drain plug, you'll
have to remove the tank to drain it properly which is usually a PITA to
remove the front bolts. Alternatively you can remove the dip pipe and tank
unit which will allow you to look inside and see how bad it is as well as
being easy to siphon from there.
Martin
ChelseaTractor - 21 Feb 2008 22:36 GMT
Thank you all, I'll have another look for a drain plug. All warnings
about petrol and flames/sparks duly noted.
GbH - 22 Feb 2008 10:10 GMT
> Thank you all, I'll have another look for a drain plug. All warnings
> about petrol and flames/sparks duly noted.
Remember switches can arc/spark, so don't go turning on/off lights while
there's petrol vapour about!

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Tom Woods - 22 Feb 2008 00:43 GMT
> My petrol tank is leaking and I want to empty it a bit more quickly
> and safely. Can I syphon the petrol out, or is it more complicated
> than that?
assuming you are dropping it anyhow to replace or seal - just lower the
tank and pour it out of the filler!. worked on my 101!
lowered on a couple of jacks under a half pallet, then poured into a
bucket which was then slowly tipped into a jerry can through a funnel
(and a coffee filter to remove the lumpy bits!)