Quote:
Originally Posted by Mike51Merc
You probably have a liquid filled pressure gauge. They often give false readings when warm/hot because the liquid inside expands and counteracts the fuel pressure sending the needle to zero. If your inlet needle valves were stuck closed, your inline pressure would be maxed, not zero.
You may be able to fix the gauge if it has a rubber plug on it. You can burp the pressure out, or empty some of the gauge fluid.
At least that will put you partly on the road to diagnosis.
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Yes the gauge is liquid filled but there is a small vent hole in rubber plug to vent it. I had also removed the plug while this was happening.
I was thinking the needle and seat may have stuck open thus flooding the engine. (too much gas)