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Dellorto Cough  Rate Topic 
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 Posted: 02-15-2022 06:40 pm
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Paulreese1
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Installed fuel regulator set to 2.5 psi. Float weights are 10 gram set at 16.75mm. Measured fuel levels. Front carb, front jet well came in at 25.3mm, rear carb, front jet well was 25.4mm. No smoke or gas out of exhaust during hard rev. Running out of carb things to check so thinking looking at timing. Have a new 43D distributor.

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 Posted: 02-16-2022 04:08 pm
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discogodfather
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When I measure fuel pressure I have two small gauges sitting at the carbs they measure 2.5psi. A few feet away at my fuel pressure regulator they single line measures at 4 psi (I have a cockpit mounted electric gauge to see that pressure).

I think that depending on the regulator, measuring at the carbs is the correct way to measure fuel pressure, and that there is a significant drop across the regulator. Not sure what you setup is like.

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 Posted: 02-16-2022 05:24 pm
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Jh092
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Paul,
The carbs are the last things to adjust. Yes, you have to make sure they are set up properly and don’t leak fuel and have the right jets, and the floats are set, etc., but if there is an ignition problem, you’ll never dial in the carbs and make the car run correctly. All ignition components should be good and without problems. The points and timing should have been set correctly when the new distributor was installed. What about plug wires, plugs, cap, rotor, coil?

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 Posted: 02-26-2022 10:53 pm
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Paulreese1
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Thanks all for inputs. New distributor (it came with electronic ignition), plugs, wires, coil and timing light not coming on. Light works fine on another car. Getting 9.9V with resister wire. Coil measures 1.4ohms. Thinking about bypassing resister wire and tryimg 3 ohm coil when I can get back to the car in a couple days.

Last edited on 02-26-2022 11:16 pm by Paulreese1

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 Posted: 04-13-2022 11:29 pm
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Paulreese1
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Finally! Venturi were upside down. Will definitely give you a flat spot. Thanks for all the inputs.

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