Peter Jeffers wrote:
>
> Hi,
> I think many of us have seen this issue of fuel venting on warm to hot days
> due to air/fuel vapour expansion.
> The cure (and it works fine) is to route the vent pipe from the tank, to the
> filler neck instead of the roof vent tube. Thus as fuel tries to vent
> overboard, as in the past, it now vents back into the tank. Saves the mess
> on the paintwork and also saves precious fuel!!!
> You will however still need to vent the tank, so a further connection into
> the filler neck now needs to be connected to the roof vent tube.
> A further refinement used by some is to move the roof vent tube to the
> bottom of the fuselage instead of the top. This later part of the mod
> ensures that if for any reason the aircraft ends up inverted, fuel does not
> run freely from the vent tube as it would if it remained on top of the
> fuselage.
> I think you will find this fix simple and very effective.
>
> Pete Jeffers
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