Hi Mark,
I had (have) the same problem. (HS4s flooding float chambers)
I replaced all the (usual) suspect parts to no avail. A fuel pressure
regulator (purolator) dialed in to the lowest setting did not solve the
problem either. I believe the problem is (at least in part) radiant
heat from the exhaust system. There's a little more to it that I won't
go into now, but to help determine if you have the same problem as I,
a couple of questions:
Does it only happen on warm days, after the engine has warmed up?
What type of exhaust manifold are you using? A header?
Does the car run fine when the engine is not hot (but warm enough for
the choke to be fully in)?
You don't have the infamous Wax-stat (Cap-stat) jets on these carbs
do you?
Sorry, more questions than answers at this point, but I fought this
problem for about a year. There are more variables than it appears.
FWIW the fuel pressure regulator is necessary, but not sufficient
to correct this problem.
> was wondering if someone could tell me the correct fuel flow pressure for
> an '80 Spit, running dual SU HS4's? I have a flooding problem that new
> floats and grosse jest have not solved. The car is still running like a
> broke dick dog. It gets progressively worse the longer you drive the car,
> then improves after sitting.
--
Bob Sykes
"You can't beat your brains for entertainment."
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