1965 Autolite carburetor rebuild won't start | Ford Thunderbird forum club group 1955-2005 models
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1965 Autolite carburetor rebuild won't start

  • Thread starter Thread starter seeker2736
  • Start date Start date
seeker2736

seeker2736

Reaction score
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Thunderbird Year
1965
I have just finished rebuilding the 4100 Autolite carb on the 1965 with a kit. Now I can't get the car to start
I have checked the spark and she is getting a spark. I also converted to and electric chock. Car turns over but doesn't
want to start there are no leaks it acts like it isn't getting a spark. Any Ideas to troubleshoot the issue

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Do you have a spark. Do you have fuel? Did a large vacuum line get accidentally left off?
 
Last edited by a moderator:
Sounds like the fuel pump to me. Pull the fuel line off at the carb and get someone to crank it over, if no fuel you've found the culprit! I had the same problem last summer. Fuel pumps are readily available.
 
If the carb is getting gas you should be able to just look down the throttle ventury and pump the throttle It should squirt.
 
Have a fire extinguisher handy just in case of a backfire.. put some gas down the carb and then try and start it. With a few tablespoons of gas it should start and run at least briefly if you are getting a good spark. If it's stone cold the choke plate should be pretty much completely closed. A choke on a stone cold engine that's not completely closed is little better than one that's not on at all. If not hold it closed while cranking to start and as soon as it fires let go of it. If things are working right the choke pull-off will open the choke about 1/8 to 1/4 inch as soon as the engine starts and has vacuum. As the electric choke element heats up it will progressively open the choke more and more.
 
First I would suggest testing the pump as described above. If it works ok, then it's a carb problem. Check all the wires - maybe between removing and installing the carb you may have knocked a vital wire off.
 
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