Packard Forum Index » Post-War (1946-54)

I have a 1949 standard 8 packard that is running rich. It idles and runs fine and drives just fine. But it is hard to start cold and stutters a little on acceleration which i think might be the accelerator pump, i rebuilt the carb but the kit i had had the wrong accelerator pump so i used the old one. but i also think it is running rich you can smell the gas in the exhaust and the fumes burn your eyes. any sudjestions?

Does the car start smoking immediately when you start it or does it start smoking after it warms up?
Frank

doesn,t start smoking right away only after it has been idling for awhile.

Mine does the same thing but it did not change after I rebuilt the carb.

You will need to doublecheck the the choke is fully opening as the car warms up (and for the hard starting issue, that it is closing fully when cold).

If the choke does not open fully, make certain that it is drawing in air at the tube fitting that goes down to the manifold. A warped, cracked or loose choke housing is usually the problem.

If the choke is opening and the car is still running rich--I assume you are speaking of black smoke-- then adjust the idle screws leaner. If they seem to have no effect the probable cause is that the float level is too high. If you are running an electric fuel pump, it may overpower the float valve.