RobertKB Posted April 22, 2011 Report Posted April 22, 2011 I had this problem with my '53 Plymouth once. It was the rubber hose between the steel line and the fuel pump. I replaced it and the car ran fine. When under load, the rubber line must have been collapsing even though it looked fine. Car ran fine at idle and even on the highway but going up a hill, it would hesitate and almost stall. Quote
greg g Posted April 22, 2011 Report Posted April 22, 2011 Where is your electric pump located? They are better at pushing than pulling so it should be as close as practical to the tank. Quote
flattiefreak Posted April 22, 2011 Author Report Posted April 22, 2011 I have the electric fuel pump at the tank. What size fuel line should I buy? Quote
oldodge41 Posted April 22, 2011 Report Posted April 22, 2011 My car had sat for 26 years before I drug it out of the barn. When we first started running it, it would occasionally do this. End result was a big bunch of crap broke loose from the gas tank and would get sucked up against the fuel pickup and starve the carb. Finally pulled and cleaned the tank and that fixed it. It didn't plug my filter because the piece was too large to exit the tank........Tim Quote
flattiefreak Posted April 22, 2011 Author Report Posted April 22, 2011 I am actually using a 30 gallong tank from a truck. It has a high pressure electric pump inside the tank. I bypassed that pump by cutting the rubber hose in the tank and running a longer piece of hose to the bottom of the tank..I have ran this tank for about 2 years with no problems. I will figure it out soon. Ill blow out the hose, see if that helps, If not, Ill replace the hose with a hard line. If that doesnt work, Ill replace the condensor and the wire that goes inside the distributor.thank you guys for all the help. Quote
flattiefreak Posted April 23, 2011 Author Report Posted April 23, 2011 I did not do the fuel flow test yet.. I took it for another test drive and noticed that it does worse on hills than on flat surfaces..It would start cutting out and I would slow down and take my foot off the gas and wait a few seconds. It would get a little bit of power after waiting but only a little.. I am pretty set on the idea it is a collapsing fuel line under load. I will do a fuel flow test tomorrow and report back the results. thanks Quote
Greenbomb Posted April 23, 2011 Report Posted April 23, 2011 Could the carb be icing up? Had that happen on a VW baja bug. What with the shrouding all removed the carb was pretty much exposed all by itself. The only way i found it was that it finally stayed frosted up long enough to see it once. No hood to open, etc. allowed me to see it. it would idle great and restart immediately. Does your heat riser work properly? Quote
PatS.... Posted April 23, 2011 Report Posted April 23, 2011 Keep us updated on your progress. We like pics, to Quote
flattiefreak Posted April 23, 2011 Author Report Posted April 23, 2011 I will not be getting the condensor until Monday. The carb is not icing over. I checked the fuel hose again for kinks and it looks fine. The hose is about a year old. I will update this monday and determine if the condensor and points wire are at fault... Quote
flattiefreak Posted April 24, 2011 Author Report Posted April 24, 2011 Got a cll from the parts store today saying my condensor had arrived. Picked it up, installed it and new dist wire...ten minutes later I was taking it for a test drive. The problem is still there...So Im now convinved it is fuel related..I am just so aggravated because she runs sooo good in neutral, I can step on the gas and there no no hesitation, but as soon as Im moving faster than 20 or so miles per hour, the carb is popping and the car just shakes and bucks with no power....Next thing I should do is replace the fuel line..I hope this will solve my issue. Happy Easter Quote
flattiefreak Posted April 24, 2011 Author Report Posted April 24, 2011 I was about to post the same thing. Before I replace the fuel hose, could it possibly be a low float level? What are the symptoms of a low float level? Quote
flattiefreak Posted April 24, 2011 Author Report Posted April 24, 2011 Replaced the front fuel filter and the car runs great again! Now, I have a new problem. Well, I dont know if its a problem or not.. I tooke a one mile test drive and when I cut the car off I popped the hood and I heard a boiling sound from the carb..Ive never heard this noise before until now.Why is it doing this and is it normal? Quote
flattiefreak Posted April 25, 2011 Author Report Posted April 25, 2011 Took the carb apart, readjusted the float. It ran great, but stalled out on me as I was pulling back in the drive way.. The carb is still leaking gas. Is there anywhere I can just buy a new carb, or get this one professionally rebuilt?? Quote
greg g Posted April 25, 2011 Report Posted April 25, 2011 Is your float leaking??? Take it out and shake it to see if it sloshes. Where is the carb leaking? Some pics might be apropriate. What pressure is your pump running at. Quote
flattiefreak Posted April 25, 2011 Author Report Posted April 25, 2011 I did hear a small amount of sloshing, but i really dont know if the amount I heard would make a difference. The electric pump is running at 5 psi. I think Im going to disconnect the pump and only run it after the car has sat for a while. As of right now, the engine is flooded. I will let it sit overnight and give it a try tomorrow without the electric pump.The carb seems to be leaking from the inside. I looked down the throat of the carb and saw it puddled up on the throttle plate. It was even bubbling...I do not have my camera at the moment because I let my mother use it on a business trip...All of this leaking gas, boiling gas, and hard starting started immediately after I removed the dirty fuel filter. Quote
TodFitch Posted April 25, 2011 Report Posted April 25, 2011 ...snip... The electric pump is running at 5 psi. ...snip... That sounds pretty high to me. Float valve in the carburetor may not be able to close against that. Quote
flattiefreak Posted April 25, 2011 Author Report Posted April 25, 2011 Thank you. Ill remove the electric pump and see how she starts tomorrow. Quote
P-12 Tommy Posted April 25, 2011 Report Posted April 25, 2011 Fuel pressure is 3 to 4 and a half pounds. That's what my manuel says. Tom Quote
flattiefreak Posted April 25, 2011 Author Report Posted April 25, 2011 Problem solved! Disconnected the electric fuel poump, mashed the pedal to the floor and she started right up..runs great. The fix was replacing the fuel filter and disconnecting the backup fuel pump. thank you guys for all the help. Quote
flattiefreak Posted April 25, 2011 Author Report Posted April 25, 2011 Im not outa the woods yet.. VERY hard to restart even with pedal 1/3 to all the way down. Itll start after around 30 seconds of cranking..and yes there is STILL gas going passed the needle and making a boiling noise..Maybe I just need a new carb or get the old one professionally rebuilt?? Any ideas? Sorry for all the problems., Quote
Young Ed Posted April 25, 2011 Report Posted April 25, 2011 Didnt you say you could hear fuel sloshing in the float? If so you need to repair it or get a new one. Quote
flattiefreak Posted April 25, 2011 Author Report Posted April 25, 2011 If I am going to be replacing anything, I figure I should just replace the entire carb.. Is there any alternatives to the Carter carbs? Ive heard of weber carbs, but dont know how good they are. What is out there that would be worth using? thanks Quote
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