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FUEL SYSTEM ANALYZER
With Great Sadness, we NO LONGER HAVE THE "Fuel System Analyzer" for Sale. The Tool that allowed Technicians to "SEE FUEL FLOW Under PRESSURE" is no longer available. |
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Most adapters are still available for order: email marylola@emi-tech.com with Need F.S.A. Parts in the subject line. |
However we DO NOT have replacement Flow Tubes and we cannot acquire the proper Flow Tubes for replacement. We have exhausted every search possible to acquire a proper and workable tube to no avail. We are at a complete loss for a tube that is NOT soluble with fuels in the USA (ethanol). We are sincerely sorry.
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Detect These Problems
The FSA Measures
Fuel Pressure...0-116 psi / 0-800 kPa
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The (Emi-Tech's) Fuel System Analyzer (F.S.A.) kit consists of a main gauge, a vacuum/pressure gauge, and various fittings. The vacuum/pressure gauge is used to measure intake manifold vacuum of exhaust backpressure, and is likely to be a duplicate of any pressure/vacuum gauges that you already own. The main gauge, however, is worth the price of the entire kit. Unlike other fuel pressure gauges, the F.S.A. is designed to measure the fuel flow at the same time it's measuring fuel pressure. It does this by means of a metal ball (of just the right specific gravity) that is suspended inside a graduated glass tube.
The gauge has two hose connections: one "In" and one "Out". All the fuel flowing to the carburetor or injector(s) passes through the tube. The flow rate is shown by the height at which the ball floats in the tube when the engine is running. The pressure is shown on the analog pressure gauge at the top of the unit. An added advantage of the glass tube is the ability to directly see the fuel, just before it enters the induction system-fuel aeration or turbidity can be seen easily. Having the ability to measure fuel flow in a working system is an as essential to fuel system troubleshooting as having an amp gauge is to electrical troubleshooting. Measure "open system" fuel by running the disconnected end of a fuel line into a can isn't the same as knowing what the flow is when a fuel system glitch occurs. I learned that the hard way. A Subaru was recently towed into the shop about four months ago after we had performed a 60,000 mile service on it. Our customer said it felt like it had run out of gas. The Analyzer showed that fuel pressure going into the fuel filter was fine, but the flow rate was near zero. A second pressure gauge, on the other side of the fuel filter, showed less pressure than the Analyzer gauge. Tapping on the fuel filter would make the flow come and go. A new fuel filter fixed the problem. The old fuel filter had less than 4,000 miles on it, and it wasn't plugged. When it was out of the system, you could blow through it in both directions! It only stopped working when the fuel system was pressurized, and then, only intermittently. (This story has a happy ending. After consultation with the representative of the filter manufacturer, the filter was sent off for analysis. A month later I received a check from them for just about what it cost to buy the F.S.A.). |
