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Just picked up at 1973 F100 custom with a 302 today. Truck had been sitting for a while and someone halfway seemed to be working on it. I threw a new radiator and battery in and got it to crank over. I could get it to fire just fine on starting fluid and bypassing the gas tank with just a hose in a gas can. Any time I gave it gas at all it would immediately die so i took a closer look at the carb. First off the choke is wide open and although im new to the older Ford that seems wrong to me. Then I noticed all the vacuum lines were cut and plugged with anything from a broken pen to a socket. Also the vacuum nipple that comes off the manifold and I THINK goes to the choke diaphragm is pinched closed and bent over. I could only find one vacuum line at all going to the carb. Im looking to see if anyone can show a picture of how its supposed to look because i dont even know where to begin with running new lines or if there is any kind of a vacuum diagram to the carb. Is there any reason someone would do this and also should the choke be open when the truck is off? Also there was a vacuum line in place to the distributor diaphragm and one small one on the passenger side of the carb.
At least one of those plugs is leaking. Go to the auto supply and get an assortment of vacuum plugs and plug them reliably, then start from there. One of those might be the vac advance line not hooked up.
10-21-2018, 02:30 AM
