Starting carb wells fuel level on all three?

[KrisGrim]

Hi,

I have a standard set up 340 with AED all plugged in as designed. I can find most answers to things from the workshop manual or on line but I can’t find this anywhere so I’m stumped.

My question is should all three wells on the AED fill to the float level of fuel? I’m assuming in operation the fuel in the well is an initial dump of fuel to get it started and then subsequently air is pulled in by all three wells until the AED switches off via the otter switch at 35 degrees.

Currently only my middle well has fuel in, the other two are bone dry. In fact they had a lot of dry guff in them which I blew out with a compressor. I can find a hole in the middle well easily where I’m assuming the fuel enters, but for the life of me I cannot find a hole on the two outer wells to see if the hole is blocked to clean it out. Are the outer wells just for air or decoration?

The picture (hopefully) attached tends to suggest that all three wells should be at the level of the float in the carb and there should be a hole right at the bottom of the well.

My other question simply for curiosity is the triangular bit of metal that covers the wells is triangular and only fully covers the central well and only partly covers the two outer wells, why is that? Anybody know? Why not cover all three to stop dirt ingress which mine clearly had.

Thanks all

[PPV]

Hi, I have not dismantled my intake to get a good look but have used a mirror and torch and mine seem to be superfluous as only the centre one seems to get fuel in and it all works ok. Also the triangular bit of metal only covers the centre hole to stop any major debris entering this area as it is the air suction passage for the carb. The fuel level being determined by the level in the main carb float chamber to which it is linked.
Sorry not much help.
Regards,