Don't go wandering off into the ignition or other areas.
The absence of fuel in the front half of the carburetor indicates that your
problem is right there. The fuel level in the carburetor should always be
exactly what the specification calls for. The correct setting for the float
valve WILL completely block off fuel inlet at that level, but will again
allow fuel to enter when the level drops away from that point. I suspect
your float valve is sticking in the shut position, due to a bad valve or
incorrect assembly.
To track this down, run the car until it dies again, and then blow INTO The
carburetor fuel inlet before you disturb the carburetor or the inlet line in
any way (you'll have to set up to do this in advance so you don't jiggle and
unstick the offending valve - perhaps you can temporarily splice in a rubber
hose length so that you can disconnect it and blow toward the carburetor
without disturbing anything). If you can't blow air into the carb inlet,
you know the valve is stuck! It should be wide open when the fuel level is
below the correct level.
Dick Benjamin
----- Original Message -----
From: <Greg_Graham@xxxxxxxx>
To: <mailing-list@xxxxxxxxxxxxxxxx>
Sent: Monday, August 19, 2002 6:38 AM
Subject: IML: 67 w/ Holly, still stalls out
>
> Last week I posted that the '67 would run fine for 2 minutes and then
stall
> out, as if it were experiencing fuel starvation. The car has a new tank,
> new metal lines, a new pump, a new filter, and new lines from the pump to
> the carb. I pulled the Holley carb and found that the previous owner had
> rebuilt the carb quite recently, most of the gaskets, etc looked brand
new.
> I haven't put many miles on the car at all. I did find that the primary
> float was out of adjustment and, when in the "full up" position, was
> completely cutting off the fuel to that float bowl. It could have been
> that the float was sticking in that position even when the fuel level went
> down. I adjusted the float and made sure that it still allowed just a bit
> of fuel, even in the "full up" position. I still have exactly the same
> problem. The car runs fine for 2 minutes or so, then I can hear the
engine
> rpm drop ever so slightly, as if it had reached normal operating
> conditions, then the car will stall out and die within 5 seconds. When I
> pulled the carb again, I found that the same primary chamber still had
very
> little fuel in it, although it is now impossible for the flow of fuel to
> that chamber to be cut off completely. I've checked the lines, and a
> mouthful of fuel suggests that
> there are no obstructions. The secondary float bowl is full of gas.
Could
> it be that I have missed something? The interior of the carb is scrubbed
> clean. Could it be electrical.... like the coil gets warmed up after 2
> minutes and then fails? Any suggestions would be appreciated. Thanks,
> Greg
>
>
>
Back to the Home of the Forward Look Network