How to Choose a Fuel Pressure Gauge
Installing a fuel pressure gauge on your engine prevents it from wasting excessive fuel. If a broken gauge is not replaced on time, the engine may receive more fuel than required. This may eventually cause your engine to malfunction. Not sure which gauge to buy? Here is a guide to the many different factors to consider when selecting one.
What type of fuel pressure gauge should be used?
Fuel pressure gauge kits: Kits are an advantage for first-time DIY-ers because it has everything needed in one package, plus a set of step-by-step instructions or a manual. Some fuel pressure gauge kits feature two pressure ports for use with a gauge(s) and for fuel to supplement a nitrous system. A kit usually includes an O-ring for positive sealing, a liquid filled fuel pressure gauge of your choice in four styles, a plug for the second fitting, and stainless mounting hardware.
Fuel pressure gauges with inline adapters: For expert DIY-ers who wouldn't need a manual, this would be the better choice. This is ideal for the inline hookup of fuel pressure almost anywhere. It consists of gold anodized aluminum fuel blocks that have 3/8 in. inlets and outlets. Most fuel pressure gauges with inline adapters also come complete with a 1 1/2 in. diameter fuel pressure gauge. The in-line adapter allows the passage of power, an RF signal, or a material substance such as fuel.
What are other things to consider when choosing a fuel pressure gauge?
Fuel pressure gauges usually all look the same except for variations in color and style. The most common bezel colors include black, white, and silver. The same selection of colors is available for the fuel pressure gauge face. As for the gauge pointers, the colors are usually in contrast to the gauge face. For example, a white-faced gauge would have a black pointer and a black-faced gauge would have a white pointer. Some pointers even come in red or orange for quick glance monitoring. As for the style, fuel pressure gauges don't just come in one face. There are some that offer double or even triple faces in one kit.
Aside from the aesthetic qualities of fuel pressure gauges, also check the gauge for precision movement and accuracy. Fuel gauges are designed for different cars, so you should know your car's specific year, model, and make. Prices of fuel pressure gauges range from $50 to $200. Lastly, always make it a point to select only trusted names in the industry.
6 Steps in Replacing a Fuel Pressure Gauge
The fuel pressure gauge is designed to indicate the exact pressure the fuel is exerting on the carburetor needle and seat. In the case of fuel injection, it indicates the pressure on the injectors. If it breaks, there is only one way to fix a fuel pressure gauge that fluctuates wildly with the oil in place, and that is by replacing it. This is so because merely repairing it is a temporary solution to fixing its leak. Here are the steps for replacing the gauge:
Difficulty level: Moderate
Tools that you'll need:
- Hose cutting pliers
- Two hose clamps
Step 1: Park your car in a cool, shady place before you start working and make sure you have enough space to work around your car. Let the engine cool.
Step 2: Put a rag under the rubber hose which joins the fuel filter to the fuel induction system. This is applicable for both carburetor systems and fuel injection systems. By doing this, the rag catches the line when the fuel escapes the hose.
Step 3:Use hose cutting pliers to cut the fuel line between the fuel filter and the fuel induction system. Next, thrust one hose clamp over both ends of the cut fuel line.
Step 4:Set one end of the fuel pressure gauge into one end of the cut fuel line, then slide the hose clamp to the end of the hose where the hose meets the fuel pressure gauge. Fasten the clamp into place by turning the screw on the clamp in a clockwise direction with a screwdriver.
Step 5:Insert the other end of the fuel pressure gauge into the free end of the cut fuel line, then attach and tighten the hose clamp into place by again turning the screw on the clamp in a clockwise direction with a screwdriver.
Step 6: Finally, remove the rag and allow any fuel on top of the engine to air dry. Once it dries, you can start your engine and check if you have done the process successfully.
Make sure your car would always have sufficient fuel pressure under boost by installing a good old fuel pressure gauge. Since proper pressure is necessary for an engine to generate power, a fuel engine gauge plays the chief role in monitoring the fuel pressure and in adjusting the fuel pressure regulator. Fuel pressure gauge installation will take about 30 minutes for an expert DIYer and about an hour for a beginner.