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| | | Supreme Being
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| As mentioned earlier in this forum my car is doing the same thing. But, it was doing it when I have my teapot carb on it . I switched to a 390 Holley and it did the same thing and now with 3x2s its still doing it. FAP headers petronix ignition,Taylor plug wires. Only thing not changed is the fuel pump. any ideas on this?
55Birdman |
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| One other thing you can check is the vent on your gas tank. The vent exits just to the side of your filler cap, it is that 5/16 steel line with a rubber grommet.
I have seen this type of problem when the tank vent line was plugged and the owner had replaced the original cap with one of the new emissions type pressure-vacuum cap's used on the later cars. The vacuum feature would allow enough air into the tank for the car to run OK when being operated, but when shutdown would cause a pressure in the tank and force fuel through the carb causing a flooding condition. The reverse would happen when the temperature dropped and the car cooled down over night it then would draw the fuel back from the line causing hard starting in the AM.
To check if your vent is clear take off your gas cap and give a shot of compressed air in the vent line to check if clear. I would only do this if the tank is below half full so it doesn't force gas out the fill spout towards you or place a rag over the fill spout to catch any splash. Make sure cap is off so you don't damage your tank if given to much air pressure. Check to see if your cap has pressure-vacuum written on it also
marv |
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| | | Supreme Being
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| My gas cap barely stays on. Not sure if its the right one. Could this be a/the problem? will check vent line that makes sense.
55Birdman |
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| | John, Thanks for the advice. I looked on the carb and it only has the thin gasket between it and the manifold. Do you know where I can get a spacer and longer studs? I also looked for the clip on the accelerator rod but all I saw was the screw that attaches the linkage... It may have been taken off before I got it. Also the heat riser has been pinched off on the manifold and a plug is in the carb where I assume the riser should go. Here is a pic of what I see... Please let me know if you see any glaring issues or if the heat riser being missing could cause more problems. Thanks! 
Andrew  56-Vicky
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| | | Supreme Being
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| | Andrew: The insulator blocks are no longer available from Ford, they show up on ebay occasionally. I have heard of people fabricating them from a piece of fine grained hardwood. Longer studs should be available at your local parts store. The clip was not present on all T-pots, or as you said, maybe someone took it off. I can't tell in the pic if the hole is there or not. The heat riser I was referring to is the flapper valve that is sandwiched between the exhaust manifold and the exhaust pipe. The tubes you are talking about are the choke heat and fresh air tubes. John
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| | | Supreme Being
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| | Andrew,I have the same carb setup as you.I just bought an original style carb to manifold gasket on Ebay.It has a steel shim between asbestos like material instead of the cardboard you get with the carb kits.The seller has one more if you are interested.item#180246031166.He's calling it a spacer but it is a special gasket.I have not put mine on yet but it might help your problem.Regards Mark |
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| | Mark, I grabbed that spacer from ebay, thanks for the tip John, The heat riser from the exhaust was long gone by the time I put a new system on it. I figured since it's usually pretty warm here I didnt bother replacing it. Could the other tubes that are pinched on the manifold be causing me any issues? It does have a small hole in the accelerator pump rod just above the screw that attaches it to the linkage. Is that the hole? Since this site only allows 400x400 pics (even in PM or email) I uploaded the original pics to a share that can be seen more clearly. http://cid-1d36ad7734b36d71.skydrive.live.com/browse.aspx/Public Thanks again to everyone for all the input, I sure love this site and have dug some real jewels from old posts
Andrew 56-Vicky
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| | | Supreme Being
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| | Andrew: The small hole is the one closed by a clip for winter operation. You are in good shape there, leave it open. The pinched off tube is associated with the automatic choke, it supplies heated air to open the choke. Do you still have the automatic choke? Does it have a heated air supply? Does it open fully when the engine is warmed up? If it doesn't open, it will cause hot starting problems as well as poor gas mileage. John in Selma, IN
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