22-04-2021, 02:27 PM
(This post was last modified: 22-04-2021, 02:29 PM by Tony Griffiths.)
(22-04-2021, 02:18 PM)bob46320 Wrote: Dave - That wouldn't work (Would it?). The main tap shuts off ALL fuel (Reserve and main). Under normal tank conditions, fuel can flow through just the main (Main being the one with the tube). If the reserve tap is shut, then when the top of the tube is in free air, fuel delivery stops. If you swapped the tube about, the tube would then be on the port for the reserve and you wouldn't get fuel unless both the main and reserve taps were open. You wouldn't know that you were running low until you had run out (I think).
What Dave has done - and I know it works because he drives the car rather a lot - is to have the main tap under the bonnet instead of the reserve. Hence, when he runs out in the overtaking lane on the M6, he just reaches under the dash and pulls on the reserve. The main, still being open, allows the flow to continue.