Quote Originally Posted by Bitsyncmaster View Post
Maybe your right.
I made a mistake once ... I thought I was wrong ...but I wasn't Just kidding!

If you take a look at the GM units they are rather interesting. On one I have, there are two tubes coming off the pump top, the larger feeds the engine. The smaller returns to the sump (But I'm not sure of the flow direction (to or from the pump)). That unit also has a float controlling another valve (rubber diaphragm). It is this unit that picks up the fuel from inside the sump. Trouble is that I don't know why or what those do or how the unit "works".

If you get a chance to look at one, do so. It is not like the good old days (1981) :-)

Nick
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