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fuel pressure

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I got a fuel pressure regulator, a holley 4-7psi unit, and then I tuned it to midway and it worked pretty well now(this is going into two MG B carbs on my midget thow) but you can tune it to what works. /ubbthreads/images/graemlins/smile.gif
 
This problem is kind of unusual. Are you sure the pressure gage is correct? The fuel pressure is set by the armature return spring tension. I can't imagine the spring increasing it's tension. Only other thing I can think of is that the diaphram itself has lost elasticity & is contributing to the overall spring force.
D
 
Hello Gb,

why did you measure the pressure in the first place, are you having flooding problems, which is what excessive pressure usually causes?

Alec
 
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