On Wednesday, 18 April 2018 18:19:29 UTC+1, Rob Morley wrote:
On 15 Apr 2018 10:12:52 GMT
Bob Eager wrote:

I thought the Triumph one was divided vertically, which was why I
mentioned it.

AFAIR just two (concentric?) pipes in the tank, one reaching the bottom
and the other not quite, you twisted something on top of the tank to go
from regular to reserve. I'm guessing that also had the advantage of
the higher pipe not picking up crud and water from the bottom of the
tank in normal use, while you could squeeze out the last gallon when
needed.

It's a complex/expensive way to let you know the tank is near empty. I guess it dates from the days before dashboard fuel gauges were widespread.


NT