On my OEM Qjet, I have found that the float level should be 11/32". I assume this is the measuremnt with the airhorn off. What is the correct measurement doing the external reading?

Thanks

 

Stupid me. I see the Thexton toll I have is already guaged to compensate for the inch or so in the air horn.

As stated above, my spec is 11/32. I measure 13/32, which is the upper end of spec (+/- 1/16"). I am experenceing SEVERE fuel starvation at moderate to WOT. Suggestions?

 

It should never starve at any fuel bowl level. The Q-Jet is capable of running at max HP continuously (as in a boat for example); it should never be able to empty the bowl, in such a way that you could compensate by over-filling it.

You have a fuel delivery problem. Start with a new fuel filter. Do not cut your steel line; the fuel filter is in the big nut the fuel line screws into. Get a 5/8' wrench for the fuel line nut, and a 1" wrench for the inlet nut; hold the inlet nut still while you disconnect the fuel line; then take the big nut out. Be careful how you put it back: the threads are fine and prone to stripping from carelessness.

if it's not that, then it's either your fuel pump, or something in your gas tank; the sock full of trash, the line encrusted with ancient varnish deposits, etc.

 

Thanks, I've actually done all the above, but the trash in tank thing. It does get MUCH worse below 1/4 tank. I was just hopeing I would have to pull the tank. Oh well...

 

There is a chance that your car has both the mechanical pump on the engine, and an in-tank electrical. If the in-tank is bad, the mechanical may be able to handle it when the tank is full, but can't pull through the electric as fuel level drops.

Worth a check.