[Fot] SU HS6 problems during hard braking

[Tony Drews]

We experienced this, but getting the pivots in the orientation you have 
them was the fix for us (in a TR-4).  You can try a different top 
orientation though, assuming you have the float bowls with the 3 
screws.  The front carb is likely the problem - under braking the fuel 
goes to the front so the float drops.  As soon as you stop braking the 
float bowl is overfull.

Regards, Tony

On 7/13/2019 8:37 PM, Jason Sukey via Fot wrote:
> The floats pivot so the swing front to back.   On the rear carb the 
> pivot pin is nearest the firewall, on the front carb the pivot pin is 
> nearest the radiator.
>
> Thanks,
> Jason
>
> On Sat, Jul 13, 2019, 9:29 PM Greg Blake <gblake58tr3 at icloud.com 
> <mailto:gblake58tr3 at icloud.com>> wrote:
>
>     What is the orientation of the pivot on the floats?
>
>     Sent from my iPhone
>
>     On Jul 13, 2019, at 8:17 PM, Jason Sukey via Fot
>     <fot at autox.team.net <mailto:fot at autox.team.net>> wrote:
>
>>     Phil, I'm running 2 psi.  My fuel pressure gauge stays consistent
>>     during the entire run.
>>
>>     Thanks,
>>     Jason
>>
>>     On Sat, Jul 13, 2019, 9:15 PM Phil Gott <vfracing at aol.com
>>     <mailto:vfracing at aol.com>> wrote:
>>
>>         Jason;
>>         What sort of Fuel pressure are you running? Should be 1 1/2
>>         to 3 psi, although a Spitfire driver and I run 6 with no
>>         apparent ill effect. More than that could be causing you some
>>         of this problem.
>>         Phil Gott
>>
>>         Sent from my iPhone
>>
>>         > On Jul 13, 2019, at 8:57 PM, Jason Sukey via Fot
>>         <fot at autox.team.net <mailto:fot at autox.team.net>> wrote:
>>         >
>>         > Hello FOT,
>>         >      Running my GT6 at the PVGP historics this weekend. 
>>         I've sorted the braking system and installed new tires since
>>         the last time out.  Now that I'm actually able to brake hard,
>>         I'm suffering from what seems to be fuel flooding, possible
>>         sloshing in the float bowls and dumping out the jet into the
>>         intake...
>>         >
>>         > During and immediately after a hard braking zone, the
>>         engine goes completely "off" and I can smell raw fuel.  After
>>         a few seconds it clears out and runs strong in all other
>>         conditions, no indication of over rich or starving for fuel.
>>         Starts normally, no issues idling.
>>         >
>>         > Original fuel level in the floats was about 1/8" below the
>>         top of the jet.  By reducing the fuel level in the bowls from
>>         there, the problem has somewhat improved, but it's still
>>         significant. Every session I adjust them a little further,
>>         but I'm not sure this is the right fix...maybe a band aid.
>>         >
>>         > Has anyone experienced this with the HS carbs?
>>         >
>>         > Jason Sukey
>>         >
>>         >
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