Another Weber conversion question? (the manifold issue) - Page 2 - Alfa Romeo Bulletin Board & Forums
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post #16 of 21 (permalink) Old 03-23-2019, 11:47 AM
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If I went to Webers I'd get a 2-4 psi fuel pump. I will be new and you won't have to worry about it. Carter makes a good one for very reasonable cost. I'm not going to get into the fuel regulator debate here. I don't use one and don't need one.
The throttle shafts on the firewall for Webers are getting kind of scarce and the motor almost needs to be out to put one in. That being said I had the Spica conversion and would never go back to one, ever.
Do you have a model number on the Carter fuel pump? I'm in need of a replacement.
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post #17 of 21 (permalink) Old 03-23-2019, 12:06 PM
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Nevermind, looks like it's the Carter P74028. Just ordered it.
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post #18 of 21 (permalink) Old 03-24-2019, 07:12 PM
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Cool Beans, mine is still going great. I do kinda miss not hearing it run when it's on though.

The passenger seat is 15 miles an hour faster than the drivers seat.

currently
2017 Giulia Q4
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71 Berlina in 2L restored driver
the ones that got away:
1959 750 series Giulietta Spider Veloce
1962 Giulietta Spider normale
1965 Giulia Sprint normale
1972 GTV
1974 GTV
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post #19 of 21 (permalink) Old 03-24-2019, 09:54 PM
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Webers with plastic floats and/or smaller needle valves can handle higher pressures than brass floats and/or smaller needle valves.

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A little government and a little luck are necessary in life, but only a fool trusts either of them. - P.J. O'Rourke
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post #20 of 21 (permalink) Old 03-25-2019, 12:59 PM
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Nevermind, looks like it's the Carter P74028. Just ordered it.
@6alfas : If you are planning on using this with carbs, don't! This is a high pressure pump - 45 psi. You need a 2-4 Psi pump! A Carter P74021 is rated at 3.5 -5.5 psi. I'd probably mate that with a pressure regulator.

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post #21 of 21 (permalink) Old 03-25-2019, 02:54 PM
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@6alfas : If you are planning on using this with carbs, don't! This is a high pressure pump - 45 psi. You need a 2-4 Psi pump! A Carter P74021 is rated at 3.5 -5.5 psi. I'd probably mate that with a pressure regulator.
Thanks Rich. Arrived today but haven't had time to install it. The good news is the P74021 is less than half the price so even with returning the other one I'll still be ahead.
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