Post by gitrdun on Jan 9, 2012 18:16:33 GMT -5
My 1600 motor doesnt want to idle below 1400RPM. At 1400 it idles like a champ and sounds smooth. Throttle response is spot on. I have a pict 34 carb. I set the valves to .006" , they were around .015" when i checked them. The volume screw is set at 2-1/2 turns out and the bypass screw is only 1/2 turn out idling at 1400. I noticed when i shut the motor off that gas begins dripping from the lower throttle plate rod. I checked for vacuum leaks and didnt find any, vacuum needle is pretty steady at idle. It also has an electric fuel pump installed. The previous owner said this motor used to be fuel injected, there isnt even a block off plate where the mechanical fuel pump would normally be. No hole in the casting at all.
So im wondering if my electric pump is forcing gas into the carb bowl and overfilling it.
Another funny thing. Before i set the valve lash to correct settings the car would fire up imediately even after running for awhile or sitting for a few days. After resetting the valves it now is hard to start without the choke set and acts like its flooded all the time when trying to start. I have to hold the throttle wide open to get it to start.
Any ideas?
So im wondering if my electric pump is forcing gas into the carb bowl and overfilling it.
Another funny thing. Before i set the valve lash to correct settings the car would fire up imediately even after running for awhile or sitting for a few days. After resetting the valves it now is hard to start without the choke set and acts like its flooded all the time when trying to start. I have to hold the throttle wide open to get it to start.
Any ideas?
