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Original Message
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| RE: need advice on fuel pressure |
| By Gerry Proctor - 03/15/2002 11:37:42 AM; IP 207.133.188.254 |
I don't see this being related to fuel pressure, Steve. You would experience fuel pouring out of the vent tubes and boosters with the engine idling if the pump was blowing the needles off the seats. But for most Holleys, fuel pressure should be around five psi. You would probably be O.K, with up to seven psi, but you need a needle and seat assembly in good condition. Anything above seven psi and you're asking for it. Another thing to consider is fuel percolation in the fuel line leading to the carb. It looks like you're done quite a bit to try and insulate the carb itself, but try pouring cold water on the pump and hard line to see if this makes the problem go away.
Some other things to consider with fuel leaking out of a Holley are the gaskets. It's fairly common when using rebuild kits for non-specific applications (and by that I mean for your specific list number. A model number kit like a 4150 or 4160 is too generic) that the metering block or plate gaskets not correct. The wrong gasket can cause fuel to leak out of the bowl and through the metering system into the throttle plate. |
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