How To Install Fuel Pressure Gauge
How To Install a Fuel Pressure level Gauge
By Rob Robinette
Installing this engine-bay mounted fuel pressure approximate is straightforward. You lot will need a 60 (or 100) psi gauge, a gauge fitting for a iii/8 inch fuel hose, and two iii/8 inch hose clamps. The fuel lines are actually 5/16 inch inside diameter hoses just the 3/viii inch gauge fitting will fit. I ordered the parts from Elevation Racing (800 230-3030) for about $25.
Fuel pressure gauge mounted at the fuel line (yes, I flushed the brake fluid)
The diagram from the Work Shop Manual
The gauge (liquid filled) and fitting from Summit Racing: Approximate - function # SUM-G3126 and Fitting - role # SUM-G1710 (for 3/eight inch hoses). Peak also sells AutoMeter fuel pressure level gauges.
Put about 2 wraps of Teflon tape on the estimate'southward threads and screw it into the gauge fitting. Make sure the record doesn't extend below the threads, you don't want whatever of the tape getting into the fuel lines. Hand tight will not be enough so use a large wrench or vise to agree the fitting and a small wrench to screw in the guess.
Grand&N fuel filter, AN-6 to 1/4 inch NPT adapter, 1/4 inch NPT iii way adapter
Summit Racing sells a iii foot AN-iv stainless steel fuel line to remote mount the gauge for about $thirty. Using this fuel line y'all can record the gauge to your windshield for engine tuning. Y'all'll need to get at to the lowest degree one insulated (rubber-lined) hose clamp to secure the line and estimate in the engine compartment. There are several pre-tapped 10mm bolt holes on the fender to bolt the fuel line down (encounter beneath).
AN-four fuel line and judge
Try to do this with as little fuel in the tank every bit possible to minimize fuel spill. The fuel line yous want to tap in to is the fuel line closest to the oil dip stick (run into diagram in a higher place). It is a safety hose that connects to a metal pipe near the engine. Earlier yous outset cutting the hose you have to release the fuel force per unit area so see the Release Fuel Pressure How-To for instructions. Now you lot can cutting the fuel line but use a rag to keep fuel from spraying on y'all and take two v/16 inch plugs ready to stop the fuel menstruum, ii Bic pen type caps will work fine. The fuel volition dribble out continuously unless you lot plug the hoses. The fuel lines take an insulation tube wrapped around them which makes them look larger than 5/16 inch. I had to remove the insulating tube from the fuel line so I could go the clamps on the hose. The insulation tube will come up right off subsequently you lot cutting the fuel line. Later installing the gauge and tightening the clamps yous need to prime the fuel system. Come across the Release Fuel Pressure How-To for instructions. Make certain there isn't whatever pooled fuel anywhere earlier you get-go the engine. Take a adept await for fuel leaks and enjoy.
Normal idle fuel pressure is 28-32 psi. Pressure with the F/P (fuel pump) and GND (ground) diagnosis terminals jumpered should be 36-38 psi (see the Release Fuel Pressure How-To for info). Y'all can bank check maximum fuel pressure (71-107 psi) by plugging (pinching) the fuel line on the engine side of the fuel approximate.
Warning
DO Not Route A FUEL LINE INTO THE COCKPIT! TO Place A FUEL Guess IN THE COCKPIT Y'all MUST USE AN ISOLATOR OR AN ELECTRICAL GAUGE WITH A Separate Force per unit area SENDER.
If you are installing an electrical pressure approximate you tin install the pressure sender in the same identify in the same mode and then road the output wire through the firewall to the gauge.
Rob Robinette
Source: https://robrobinette.com/fuelp_gauge.htm
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