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OT: Fuel Pump Pressure Question
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Posted by Dave in GA on December 14, 2006 at 07:39:42 from (163.246.18.120):
I have a 1966 IH truck with the 392-V8. I don't drive it much but start it up once a month or so. When I started it the last few times, I ended up with the Holley 4-barrel carb leaking fuel all over the engine while the engine was running fine. The first time, it sprung a leak where the fuel line attaches to the carb. It had never leaked there before, but now was gushing out. I had to put a new washer on the fitting, which solved the problem. Then last week when I started it, and while the engine was running fine, gas began gushing out where the front reservoir-to-rear reservoir fuel tube comes out of the front reservoir. There's little o-ring in there that seals it. So I took the carb apart and found that the o-ring had blown. As soon as the rebuild kit arrives, I plan to replace all of the carb o-rings and gaskets. But I've been wondering if my 5-year-old fuel pump is building up too much pressure that's blowing the gaskets and o-rings? Is this possible? The last thing I need is an engine fire. By the way, while the engine runs, the carb doesn't flood the engine. The needle/seat valves seem to be holding the pressure just fine.
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