Installation Instructions
Contents
1. to Tank 6 C00 8 CSAT hON 174113 uses a 8 Fitting 670700 Fuel Return to Tank 6 1728 174041 174042 174043 1729 174021 174022 174023 174113 Edelbrock LLC 2700 California St Torrance CA 90503 Brochure 63 0167 Technical Toll Free Hotline 800 416 8628 2014 Edelbrock LLC Rev 10 7 14 QT2. EDELBROCK EFI FUEL PRESSURE REGULATORS CATALOG 1728 174041 174042 174043 1729 174021 174022 174023 174113 INSTALLATION INSTRUCTIONS PLEASE study these instructions completely and thoroughly before installing your new Edelbrock Fuel Pressure Regulator If you have any questions or problems contact our Technical Hotline at 1 800 416 8628 7 am 5 pm Monday Friday Pacific Standard Time WARNING Prior to starting the installation make sure to eliminate all potential fire hazards as fuel leakage can occur when loosening the fuel system connections and components CAUTION Installation of this product should be performed by those persons knowledgeable in the repair and modification of automotive fuel systems Proper installation is the responsibility of the installer Improper installation will void the manufacturer s warranty and may result in poor performance and engine or vehicle damage Do not loosen the fuel system connections until relieving pressure as recommended in your automotive service manual 1 With the ignition off and engine cool relieve the fuel system pressure 2 Remove the existing regulator vacuum line if so equipped 3 Disconnect the existing regulator fuel lines Plug the open fuel lines to prevent foreign matter from entering the fuel system Remove the existing regulator Determine the new regulator mounting location Replace existing fuel lines as necessary for proper fitment Use exist
3. ing bracket holes if possible Otherwise mark and drill mounting bracket holes using the bracket as a template Install the O rings and fittings Fuel fittings NOT included as shown below Assemble the bracket and regulator Install the regulator and bracket assembly in the desired location Connect and tighten fuel lines to the inlet and outlet as shown below Connect manifold vacuum to the vacuum fitting on the regulator 9 If installing Model 1729 174021 174022 174023 or 174113 install the plug supplied or connect a fuel pressure gauge to the gauge port using a 1 8 27 NPT male thread and thread sealer not supplied 10 Check for leaks Turn ignition to the Run position and check all connections for leaks If any leaks exist immediately turn key off and repair before continuing 11 Start the engine loosen the jam nut on the top of the regulator and turn the adjusting screw until the desired fuel rail pressure is obtained Tighten the jam nut and re check the fuel rail pressure m SS Fittings Shown Fittings Shown 10AN to 10AN with O Ring Adjusting Screw 6AN to 6AN with O Ring Adjusting Screw Part 670710 Qty 2 Part 670840 Qty 3 amp 6AN to 6AN with O Ring Q Q Part 670840 Qty 1 P o Gauge Port or Plug O Vacuum Fitting o Vacuum Fitting lt Fuel in 10 Fuel out 6 Fuel in 6 O lt lt Ai l KO unting hi o ah Cie Bracket P _ Russell fittings itti pol a Fuel Return
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