1950-1966 [Subscribe to Daily Digest] |
I am assuming that this is a FOMOCO single barrel carburetor and that you have cleaned the carb by dismantling it. When standing on the driver's side, if the "deepest brass spout" you are referring to is located at about 11 o'clock below the choke butterfly it is the pump jet, which is supplied with gas from the accelerator pump (pasasenger's side of carb). This squirts gas into the carb only when the trottle linkage is moved and acts as a transition between fuel circuits (idle & main). It sounds like this is working normally on your carb. Also the idle circuit seems to function normally. Have you checked your fuel filter lately? It may be blocked. If you wish to test your fuel pump run an extended length of gas line from the outlet (carb end) of the pump to a small container away from the car. Best to have a fire extinguisher handy for safety sake! Check by turning over the engine with someone holding the line to see if fuel pumps through. If fuel does pump through well, then the pump is ok and it is a carb problem. However, if fuel does not pump through well replace the line to the carb and remove the line from the gas tank side of the fuel pump. If gas flows freely from the tank then the problem is the fuel pump. I used a Carter mechanical fuel pump M60136 listed for a Mercury Capri 2.6 V6 (the inlet and outlet tubes are larger than those on the stock pump but it works well with the 1/4 fuel line) when my OEM fuel pump's diaphragm developed a leak. If gas does not flow freely from the tank when the line from the gas tank side of the fuel pump is removed run an extended length of gas line from the inlet (gas tank end) of the pump out the wheel well venting to a small container of gas away from the car. If the engine runs good then it is the tank or the line from the tank that is blocked. On my Sonett, to correct this problem I positioned the car with the passenger side in an uphill position after I suctioned out the old gas. Then I slid the passenger seat forward disconnected the seatbelt warning wire and removed the seat. I lifted the covering material, disconnected the line at the tank while reaching in and using a flashlight. I then used a small piece of wire to unplug the sediment that had collected there and was preventing the gas from flowing to the fuel pump. Sorry but I do not know how to do this on a 95. If you did not find a problem when you checked the fuel filter, fuel pump and tank then it is the main circuit of the carb that is not getting enough fuel. This may be a sticky needle and seat or some other problem. I have used Niehoff CK489A carburetor kits made for 1971-73 Ford Capri and Pinto FOMOCO carbs with the 1600cc engines. They come with instructions. Note: the base gaskets are too big for the Saab's FOMOCO carb so you will need to reuse your old base gasket(s). As mentioned before watch out for air leaks between the carb/gasket/mainfold. when Good luck!
posted by 24.71.1...
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