That usually happens because the gas filter is in upside down. The
filter has two outlets, the center outlet leads to the carb and the
'top' one leads to the return line. If the return line isn't at the
top, gas will syphon back to the tank air locking the line and they are
real buggers to start up.

There also is a valve on the fuel pump likely to stop backflow. You
could first make sure the filter is right, then take the line off the
pump intake to see if the gas all comes out.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
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Ron Croonenberg wrote:
>
> Hi all,
>
> it seems that if my '79 CJ5 is sitting for a while that the gas
> runs through the line back to the tank.
>
> That means that after it has been sitting for a while. I have to crank
> it for a while before it starts. (if it sits for a day or so.. I have
> to crank it quite a bit. If it sits there for an hour or 2 there's no
> problem
>
> I replaced all the hoses.
>
> How does the gascap work ? is it supposed to seal the gastank,
> or doesn't it matter ? The gascap I have is probably the original.
>
> thanks,
>
> Ron