| 46fordnut | -- 05-24-2011 @ 1:03 PM |
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just got my last shock stud out ! and now all four new shocks are done...THANK GOD. it rides much better. she needs nothing and rides so nice. 100 horse running wild This message was edited by 46fordnut on 5-24-11 @ 6:17 PM
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| thirtysixford | -- 05-24-2011 @ 8:49 PM |
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It's nice when things work out
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| 46fordnut | -- 05-25-2011 @ 12:19 PM |
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just one quick question.. if my car sits for more then a day i have to prime carb with fuel about 6 times then it will stay running...fuel pump issues??? have 1/2 tank fuel. once it stays running it will start again . sometimes needs to sit for 1/2 hour to restart. not every time. 100 horse running wild
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| TomO | -- 05-26-2011 @ 6:32 PM |
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It could be fuel pump, gas line or carburetor. I would test the fuel pump first, the input valve may be leaking down too fast. You could also have a plugged gas line, a leaking connection in the gas line or a bad flex line. Use your vacuum gauge to check the valves. Failure to prime: There have been many complaints about gas evaporating from the carburetor when the vehicle sits for more than a week. This means that the fuel pump must prime itself and pump some gas into the carburetor before the engine will start. The Ford V-8 fuel pump must be able to generate and hold vacuum in order to draw the gas from the tank and lift it as much as 18 inches to the sediment bowl. Once the pump is primed, the pump must deliver gas to the carburetor. The source of the vacuum is the diaphragm and the input valve acts to hold the vacuum. A good pump will prime itself in about 30 seconds and start the car in about 60 seconds. Add about 30 seconds of time to fill the glass sediment bowl. Do not crank your car continuously for this length of time or you will burn out the starter. If you are having a problem with priming the fuel pump, hook a vacuum gauge to the input of the fuel pump and crank the engine. The vacuum gauge reading should rise to 10 inches in 18 seconds. Stop cranking the engine and watch the needle on the gauge. It should take at least one minute to reach 0. In order of probability causes of failure in this area are top cover or sediment bowl gasket leaks, input valve not working or defective diaphragm. The valves in the new after market pumps made by Air-Tek will not hold vacuum above 5 inches. This may lead to priming failures. The valves in the pre 1941 fuel pumps are more likely to fail than the later type. If the above test showed that the fuel pump was OK, move the gauge to the next connection in the input side of the fuel pump and retest. This will check out the flex line and the connections to the tank. If these tests results show good connections, the problem could be plugged lines or tank pickup. A bad connection may not leak fuel, but it will leak vacuum. The flex lines can leak at the crimp for the connection or from pinholes caused by not being alcohol resistant. Another cause of failure to prime is rust clogging the line or the pickup in the tank. To check the line, disconnect it at both ends and blow through it from the fuel pump end with compressed air. The tank end should be directed into a container to catch whatever comes out of the line. Tom
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