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DANIEL TINDER
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KULTULZ (9/1/2025)
You post 'anther carburetor'. Do you mean you have a later style carb that you want to install (update) rather than repairing the present
New 465 HOLLEY. Manual says elect. choke needs 12V though. I have a small transformer that might work in case. Also have to likely rig the linkage.
6 VOLTS/POS. GRD. NW INDIANA
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DANIEL TINDER
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Robs36Ford (9/1/2025)
The cover has several of the air bleeds that control the fuel timing at different RPM. Running without, for other than idle and just off idle, would not work well at all. But as a test after the engine is hot, pull it off to see if it is flooding or boiling fuel. Ensure your Fire Extinguisher is handy and charged ! Bubbling sounds are usually the gas boiling due to heat soak or lots of air getting in. Do you have a phenolic carb spacer ? It's 1/2" and black colour under the carb to stop the heat from the intake. Without the spacer the carb WILL get too HOT ! Is your exhaust heat crossover leaking ? that could cause extra flow of hot exhaust into carb area making the fuel boil. I believe the 55 has an intake mounted choke. Was that changed to the later Carb mounted style ? If the fuel filter has clogged and broken that could let dirt into the needle and seat of the carb making it flood the engine. but that would continue even when the engine cools down. Just a few thoughts.... :-) Car ran great, even with the power valve continuously open (just poor mileage). Believe I’ll warm the motor with only a couple float cover bolts barely snugged, and then pull the cover quickly to check the level. I’ll run only the aux. elect. pump first with the cover off, to check it before starting. If the crossover IS leaking, then the teapot issue is indeed null. Carb body doesn’t feel hot though. Mystery is why after the bubbling dies down, opening the throttle starts it again (?).
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Robs36Ford
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Another thing that can make bubbling noise is low coolant
1936 Ford 3W Coupe : 56 T-Bird 312, 47 Packard 3 speed, 40 juice brakes.
1968 Merc Cyclone FB GT 390, Getting a better front clip!
1977 Ford F-250 Supercab RWD Explorer Long box.
1976 Chev Camaro RS LT
Future rebuild : 1949 Ford F-1
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KULTULZ
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"Car ran great, even with the power valve continuously open (just poor mileage)." This just rang out on me ... In addition to the mileage, the rich mixture will thin the motor oil. They didn't call them 'TOWERING INFERNOS' for no reason .. You need to find a capable re-builder.
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paul2748
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Running great? This isn't what you said in your opening post.. Seems like you are expecting to much with a carb that seems to have multiple problems. I have a teapot on my 56, had it rebuild by professional who specializes in teapots and it runs very well.
As it was mentioned, running very rich can thin out the oil
54 Victoria 312; 48 Ford Conv 302, 56 Bird 312
Forever Ford
Midland Park, NJ
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cos
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Hello Seem like Ford cook book said to cut part of top cover off (leaving essential part) so you can see inside of bowl for fuel level. I did it.
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DANIEL TINDER
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paul2748 (9/4/2025)
Running great? This isn't what you said in your opening post.. Seems like you are expecting to much with a carb that seems to have multiple problems. I have a teapot on my 56, had it rebuild by professional who specializes in teapots and it runs very well. As it was mentioned, running very rich can thin out the oil Opening post was only due to a sudden problem, which would seem obvious. Diluted oil an unlikely cause though. Why don’t you try to explain why it still runs great initially when cold, with a carb that has multiple problems?
6 VOLTS/POS. GRD. NW INDIANA
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DANIEL TINDER
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6 VOLTS/POS. GRD. NW INDIANA
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DANIEL TINDER
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Site won’t post my quote text.
6 VOLTS/POS. GRD. NW INDIANA
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KULTULZ
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'Diluted oil an unlikely cause though.' It is not a cause but a result. 'Why don’t you try to explain why it still runs great initially when cold, with a carb that has multiple problems?' If it runs good at cold start up and then worsens as the car warms, it is indicating a rich condition with the choke on and as the choke opens it goes lean, possibly a vacuum leak. https://www.mustangtek.com/Library5/PDF/Holley4000.pdfhttps://duckduckgo.com/?q=HOLLEY+H4000+4V+REBUILD&t=newext&atb=v420-1&ia=videos&iax=videos&iai=https%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DqtCR6uwcnGg
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