64 Comet Hot Start problem....

144-250 cid Inline Six Performance

64 Comet Hot Start problem....

Postby comet1268 » Thu Sep 13, 2018 9:26 am

I did a quick search on the site and didn't see any info on hot start problems. I have 64 Comet. I had my carb totally overhauled here a year ago by KP carbs on recommendation and I highly do the same. Fantastic. Here is the link to his site. http://www.kpcarbs.net/home.html. Also, I installed Pertronix electronic ignition.

Anyway, car is running good. Cold start, No problem at all, fires right up. After tooling around town a little bit (it's been in the 90's down here in Georgia), it gives me a hard time getting started if I don't get it on the first turn over. Any ideas? I'm pretty sure it is flooded. FYI, I replaced the sending unit to get the old fuel gauge functional within the week. I have fuel filter inline. I don't think it is contaminate. I have done minimal adjustment on the carb since it came all preset from KP carbs but, advice on adjustments would be greatly appreciated.

Thanks ya'll. I just thought I'd go to the best resource.


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Re: 64 Comet Hot Start problem....

Postby 62Cometman » Fri Sep 14, 2018 7:34 am

Float level set too high is my guess, i had pretty much that exact issue and i could hold the pedal to the floor let the carb air out and after about 5-7 seconds of cranking i could finally get it to start. I pulled my carb off lowered the float level a little say about 1/16-1/8 inch and solved my problem. Basically what was happening was all the fuel in the carb bowl would hot soak and expand so much that a bunch of fuel would dump down into the intake, if i let it sit for long enough it would still start no problem but if i wanted to start it up right away it was a hassle. After lowering it starts up every time and never had a hot soak issue since.
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Re: 64 Comet Hot Start problem....

Postby 65_Rat_Merc » Tue Sep 18, 2018 11:18 am

I have the exact same problem. I've just lowered my float a fuzz and will post later this evening if it solves my problem!!!
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Re: 64 Comet Hot Start problem....

Postby Groover » Wed Sep 19, 2018 6:22 am

I have the same problem on extremely hot days. if you don't already have one, consider a carb spacer.
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1964 Comet Caliente Convertible
30,000 miles on our rebuild

All Comets start out as dreams...
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Re: 64 Comet Hot Start problem....

Postby comet1268 » Mon Sep 24, 2018 10:38 am

Thanks for the input. I adjusted the float and I'll report back my findings as I drive it more. I just ordered some new tires too as one of the oldies finally threw a radial on my test drive!! It's always something and they were on borrowed time anyway. I've had to make some mixture adjustments to keep this girl idling as well so we will see.

How did it work out for you 65_Rat_Merc????

Thanks!
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