"john smith" wrote in message
...
The C172S has three fuel sumps in the nose.
The C182S has two (according to the PIM, beneath the fuel selector and
on the lower right side of the cowl)... but I am wondering what the thin
stainless steel tube on the front of the firewall is for?
It looks like a fuel drain, but I cannot find any reference to it.
Does anyone know if this tube is another fuel drain?


Not exactly a fuel drain, I believe you are referring to the overflow tube
for the fuel injection system. It is supposed to keep fuel from building up
inside the cowling and dripping on the nosewheel pant.