What fuel pump are you running? It sounds like a stuck float valve in the
rear carb or high fuel pressure. High fuel pressure will push the float
valve open, overfilling the carb.
I run an electric pump with a fuel pressure regulator set to 2.5 lbs on my
SU setup on my TR6. Also, the fuel line is on top of the intake manifold,
away from the exhaust. I also run a heat shield (provided by Joe Alexander)
to help keep things cool.
As a test, you could wrap the fuel line in some reflective heat insulation
and see if that helps.
Terry Geiger
'74 Triumph TR6 | '63 Triumph Herald | '70 MGBGT | '84 Mercedes 300D Diesel
http://www.shoalsbritishcars.org/
> From: John Krause [mailto:jktr250@gmail.com]
> Sent: Monday, August 06, 2007 5:52 PM
> To: Scott Suhring
> Subject: TR6
>
>
>
> I have installed the Moss HS6 SU conversion in my 1970 TR6. I can start
> the
> car, but when it gets hot, the car stalls and cannot be started until it
> cools. When the car begins to stall, the rear SU blows fuel out of the
> vent
> tube. I have all metal plumbing from the fuel pump to the front of the
> carbs ... the fuel line splits below the front carb and then feeds both
> float bowls. The problem appears to be vapor lock, but does anyone have
> any
> thoughts as to why this is happening? Could the metal fuel lines have
> anything to do with it? Would a heat shield cure this problem?
> _______________________________________________
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