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Author Topic: Float level  (Read 910 times)
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Richard Fridd
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« on: 17 November, 2020, 10:59:10 AM »

Having read the Solex 40+ page pdf, I can't see any info regarding setting the float. I have a Solex C40PAAI. One thing I have read elsewhere is to install a sight glass or a level indicator to check the fuel without removing the top. Advice re fuel level welcome. Richard
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Richard Nevison Fridd
lancialulu
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« Reply #1 on: 17 November, 2020, 12:22:03 PM »

Fulvia solex carbs are 19mm+-1mm measured from the top of the float chamber bowl casting edge. The most accurate way to do this is to access the emulsion tube and remove it and measure with a thin glass tube inserted (or a tie wrap) and measure the fuel level from that datum. Not sure if the same mechanism can be used for the 40
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Its not the winning but taking part! or is it taking apart?
1955 Aurelia B12
1967 Flavia Vignale iniezione
1967 Fulvia 1.3HFR
1972 Fulvia 1600HF
1972 Fulvia 1600HF
1972 1600 Fulvia Sport
1979 2500 Gamma Coupe
1988 Delta 1.6GTi
1998 Zeta
Richard Fridd
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« Reply #2 on: 17 November, 2020, 12:49:36 PM »

Thanks Tim, two emulsion tubes accessible with air filter housing unclipped. Richard
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Richard Nevison Fridd
lancialulu
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« Reply #3 on: 17 November, 2020, 05:10:20 PM »

Thanks Tim, two emulsion tubes accessible with air filter housing unclipped. Richard
dont take top of float chamber off as you will get a false reading
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Its not the winning but taking part! or is it taking apart?
1955 Aurelia B12
1967 Flavia Vignale iniezione
1967 Fulvia 1.3HFR
1972 Fulvia 1600HF
1972 Fulvia 1600HF
1972 1600 Fulvia Sport
1979 2500 Gamma Coupe
1988 Delta 1.6GTi
1998 Zeta
Richard Fridd
Permanent resident
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Posts: 2976



« Reply #4 on: 17 November, 2020, 05:55:51 PM »

Thanks, another job is to remove and clean emulsion tubes incase the air holes are blocked. Is there a preferred method anyone? Richard
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Richard Nevison Fridd
neil-yaj396
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« Reply #5 on: 18 November, 2020, 04:13:24 PM »

Thanks, another job is to remove and clean emulsion tubes incase the air holes are blocked. Is there a preferred method anyone? Richard


A week in paint thinners did wonders with mine.
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1979 1300 Beta Coupe, 2014 Ypsilon 1.2 S Series Momo
Richard Fridd
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« Reply #6 on: 18 November, 2020, 04:17:58 PM »

Thanks, I was wondering about accessing the e tubes? Richard
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Richard Nevison Fridd
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« Reply #7 on: 02 February, 2021, 06:41:34 PM »

Hi, does anyone know the float level for the Solex 40 PAAI twin carb please.
Also any tips for best way to check would be appreciated.
Thanks
Chris
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Richard Fridd
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« Reply #8 on: 02 February, 2021, 07:47:39 PM »

As Tim says. A 'dipstick' in the emulsion tube casting. Emulsion tube can be removed very gently with a stud extractor or similar, having first removed the air correction jet. My fuel level is approx half way up the float bowl. The Solex pdf is worth reading also. Richard
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Richard Nevison Fridd
FERGTS246
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« Reply #9 on: 03 February, 2021, 12:24:48 AM »

Hi all, thanks for your feedback. What's this Solex 40+ pdf and where can I get it?
Thanks
Chris

Having read the Solex 40+ page pdf, I can't see any info regarding setting the float. I have a Solex C40PAAI. One thing I have read elsewhere is to install a sight glass or a level indicator to check the fuel without removing the top. Advice re fuel level welcome. Richard
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Richard Fridd
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« Reply #10 on: 03 February, 2021, 07:28:33 AM »

A 'solex pdf' Google search should have at the top of the list ' Solex, selection and tuning the carburetor, Arnolt Corporation, Indiana'. 48 pages to view or print. Also the float bowl may have a 'tidemark' to indicate existing fuel level. Richard
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Richard Nevison Fridd
FERGTS246
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« Reply #11 on: 03 February, 2021, 11:26:47 AM »

Ah, that PDF. Yes got one thanks but haven't read it thoroughly as I couldn't find reference to C40 PAAI. Will look again.

I've got a lot more soot in one tail pipe that the other. My first task will be to check the air correction jet and air slow-run jet on that side of the carb - any other suggestions on what might be causing it ?
Thanks

Best Chris

A 'solex pdf' Google search should have at the top of the list ' Solex, selection and tuning the carburetor, Arnolt Corporation, Indiana'. 48 pages to view or print. Also the float bowl may have a 'tidemark' to indicate existing fuel level. Richard
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Richard Fridd
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« Reply #12 on: 03 February, 2021, 02:18:31 PM »

Looking forward to hearing the answer. Sooting in my case a while ago was cold start device stuck on, all cylinders affected though.Richard
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Richard Nevison Fridd
FERGTS246
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« Reply #13 on: 04 February, 2021, 10:54:26 AM »

Hi, I've been reliably informed that the float level for the Solex C40 PAAI is 16-18mm. This info came from a Lancia data sheet for this carb.
Chris

Looking forward to hearing the answer. Sooting in my case a while ago was cold start device stuck on, all cylinders affected though.Richard
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Richard Fridd
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« Reply #14 on: 04 February, 2021, 11:34:15 AM »

Excellent Chris, any chance of posting info from this data sheet. I for one have spent time trying to get things working properly. I have checked jet/ emulsion tube/ choke sizes etc. against info in my LMC workshop manual reprint. With my existing Solex, there is no positive 'stop' for the cold start device, although I think I have it correct with no whistling/frosting at the orifice. Richard
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Richard Nevison Fridd
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