Hi, I have a 71 skylark with a factory 2 barrell on it at the moment, I have a new stage 1 intake from T/A, but have yet to install it with a 4 barrell. Anyhow, my problem is with the current 2 barrell on there. It runs very nicely in the driveway, but when I take it out on the road, I get a random distance and the car seems to bog down quickly. When it starts doing it, I can floor the gas, and it will continue to chug at barely over idle speed. If I do nothing, it dies immediately. The car I would like to start driving daily to iron out some problems with it, but can't for obvious reasons. It sat for something like 7 or 8 years before I got hold of it. Any thoughts on what may be causing the problem? I assume it to be some sort of fuel/carb problem since it runs so strong in the driveway. Any help is greatly appreciated Jeff
Fuel Pump, would be my guess. Could also be time for a carb rebuild. The float could be sticking. Lots of things deteriorate when a car sits for a long time, namely rubber parts. Do a fuel pressure/volume test on the car. Also check for vacuum leaks.
Carb Jeff, If that carb is a rochechester 2gc the best thing You can do is pitch it. My mom had one on an olds that nearly ran me crazy with stalling and pukeing fuel out on top of the engine. Its a wonder the thing didnt catch fire and burn. But back to Your problem , It sounds like you may be running out of fuel. Sometimes when a car has set for a long time the diaphragm in the fuel pump will dry and crack and then when you crank it up the pump will supply enough fuel to start but not enough to run down the road. The fuel leans out when you step down on it,after the shot from the accelerator pump is used up. This is usually indicated by a muffled 'ppllump' sound in the air cleaner when the engine gets a lean mixture backfire thru the carb. Then the eng either dies or barely will keep running. This also could be caused by a stuck carb float. [ again insufficent fuel supply] with the engine ideling, LIGHTLY tap on the carb above the needle/seat assembly. some times you can cause the float to loosen up that way. If this fails then take the top off the carb and unstick the float. while You are under the hood do a quick check on the dist. advance diaphram by sucking the hose to pull a vacume on it and then stick your toung over the hole in the hose to see if the diaphragm holds the vacume. I have found several bad vac advances that way. :Brow: :Brow:
