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Upgraded SU float valve
https://www.ausmini.com/forums/viewtopic.php?f=2&t=84796
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Author:  Hanra [ Mon Mar 03, 2014 9:14 pm ]
Post subject:  Upgraded SU float valve

Having an issue with float bowl overflowing and leaking at the lid to bowl gasket. My floats both float and are entirely plastic no metal arm to adjust the float level. I've set the float level via thin shims under the seat. The needle and seats are brand new. I've got an electric fuel pump also rotary vane type, had me thinking maybe it's making to much pressure?

Saw these upgraded float valves was thinking of giving them a go. Anyone tried them?

http://www.ebay.com.au/itm/330833391842

Author:  drmini in aust [ Tue Mar 04, 2014 6:16 am ]
Post subject:  Re: Upgraded SU float valve

IMO these all plastic floats are rubbish, I'd refit old floats if you still have them.

SU = a well designed carb, but let down by detail errors....

Author:  Hanra [ Tue Mar 04, 2014 6:34 am ]
Post subject:  Re: Upgraded SU float valve

If I could get my hands on some old style floats I'd gladly fit them. I can't see any for sale anywhere. I think I binned all my SU parts many years ago.

Author:  justminis [ Tue Mar 04, 2014 7:14 pm ]
Post subject:  Re: Upgraded SU float valve

I have found some old style floats for you Brad, Cooper S tax might apply tho . .

Author:  Hanra [ Tue Mar 04, 2014 10:13 pm ]
Post subject:  Re: Upgraded SU float valve

Excellent!! Hope Cooper S tax isn't as high as SLR 5000 tax! :-D

Author:  Hanra [ Sat Mar 22, 2014 4:32 pm ]
Post subject:  Re: Upgraded SU float valve

Think I need to look at getting a pressure regulator or a new fuel pump..... 5psi may be a bit excessive???

Image

Author:  Hanra [ Tue Apr 01, 2014 7:54 am ]
Post subject:  Re: Upgraded SU float valve

Got a hold of some Minispares CA90 valves and fitted the old style float assy, also fitted an adjustable fuel regulator set at 2.5psi. Havnt started the car yet, but with the fuel pump on, no leaks. So its a good sign so far.

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