Edelbrock 641570, 641573 User Manual

©2007 Edelbrock Corporation

Brochure #63-641570Page 1

Catalog #641570, 641573
Rev. 5/07 - RS/mc

FIREWALL FORWARD FUEL LINE KITS

For 1996-2000 Honda Civic Equipped with B-Series Engine

Catalog #641570, 641573

INSTALLATION INSTRUCTIONS

PLEASE study these instructions carefully before beginning this installation. Most installations can be accomplished with common tools and

procedures. However, you should be familiar with and comfortable working on your vehicle. If you do not feel comfortable performing this installation,
it is recommended to have the installation completed by a qualified mechanic. If you have any questions, please call our Technical Hotline at:
1-800-416-8628, 7:00 am - 5:00 pm, Pacific Standard Time, Monday through Friday or e-mail us at [e-mail]

.

IMPORTANT NOTE: Proper installation is the responsibility of the installer. Improper installation

will void your warranty and may result in poor performance and engine or vehicle damage.

DESCRIPTION: This Russell Performance Firewall Forward Fuel Line kit includes all necessary parts to replace your factory rubber fuel lines from the

fuel filter to the fuel rail and from the fuel rail to the factory steel return line with a high performance Edelbrock aluminum fuel rail, Proflex/Twist-Lok,
or Proclassic hoses, and AN fittings. The kit is designed to fit 1996-2000 Honda Civic chassis equipped with a Honda DOHC B-Series engine, and will
provide increased fuel flow for high performance applications. Kit #641570 features Proflex/Twist-Lok hoses and red and blue anodized fittings, while
kit #641573 features Proclassic hose and fittings with a black and clear finish.

KIT CONTENTS:

❑ 1 Fuel Rail. High Flow, Honda B-Series Engines (PN 4796)
❑ 1 Adjustable Fuel Pressure Regulator (PN 1728)
❑ 5ft Proflex Hose (-6AN) (641570 Only)
❑ 3ft Twist-Lok Hose (-4AN) (641570 Only)
❑ 5ft Proclassic Hose (-6AN) (641573 Only)
❑ 3ft Proclassic Hose (-4AN) (641573 Only)
❑ 1 Honda Banjo to -6AN Male Adapter Fitting
❑ 2 Straight Hose End (-6AN)
❑ 1 90° Swivel Hose End (-6AN)
❑ 1 45° Swivel Hose End (-6AN)
❑ 1 Straight Twist-Lock Hose End (-4AN) (641570 Only)

❑ 1 Straight Hose End (-4AN) (641573 Only)
❑ 2 #4 Hose End Cover (Red, 641570 Only)
❑ 1 #4 Hose End Cover (Polished, 641573 Only)
❑ 2 -8AN to -6AN Adapter Fittings (with o-rings)
❑ 2 -6AN Dry-Sump Fittings (with o-rings)
❑ 1 -6AN Block-Off Plug (with o-ring)
❑ 1 -6AN Female to -4AN Male Coupling
❑ 1 -6AN Female Coupling Nut
❑ 1 #4 Hose Clamp
❑ 2 12mm Aluminum Crush Washers
❑ 6 Tie-Wraps

TOOLS REQUIRED:

❑ Hand Tools, Standard and Metric
❑ Standard and Metric Allen Keys
❑ AN Wrenches

❑ AN Fitting Assembly Lubricant
❑ Liquid Teflon Thread Sealant
❑ Fuel Pressure Gauge (For Fuel Pressure Adjustment)

CAUTIONS AND WARNINGS

WARNING: EXPOSED FUEL AND OIL WILL BE PRESENT DURING THIS INSTALLATION. WHEN WORKING AROUND

GASOLINE OR OIL, ALWAYS WORK IN A WELL VENTILATED AREA, AND KEEP ALL OPEN FLAMES, SPARKS, AND OTHER

SOURCES OF IGNITION AWAY FROM THE WORK AREA. FAILURE TO DO SO CAN RESULT IN A FIRE

OR EXPLOSION.

MAKE SURE

TO DISCONNECT YOUR BATTERY TO AVOID THE POTENTIAL FOR SPARKS IN THE WORK AREA!

NOTE: Certain Honda vehicles have security protected audio systems. If your vehicle is equipped with a factory audio system, be

sure to have the security code written down prior to disconnecting the battery. See Honda Service Manual for additional details.

WARNING: SOME PROCEDURES IN THIS INSTALLATION MAY REQUIRE THE VEHICLE TO BE RAISED ON JACKSTANDS OR A LIFT. WHEN
RAISING A VEHICLE, MAKE SURE THE VEHICLE IS ON LEVEL GROUND AND SUPPORTED SECURELY BY JACKSTANDS.
NEVER WORK UNDER A VEHICLE THAT IS SUPPORTED BY A JACK ONLY!

©2007 Edelbrock Corporation

Brochure #63-641570Page 2

Catalog #641570, 641573
Rev. 5/07 - RS/mc

INSTALLATION PROCEDURE

DISASSEMBLY AND FUEL RAIL INSTALLATION

1. Make sure the vehicle is on level ground, and the gear selector is in
“Park” or in 1st gear. Set the parking brake or chock the wheels.

2. Disconnect the battery negative terminal. See note on page 1
regarding Honda/Acura security protected audio systems.

3. Thoroughly clean the area surrounding the fuel injectors and the fuel
rail. This will prevent debris from entering the fuel system or the
intake manifold upon fuel rail removal.

4. Relieve any residual fuel pressure in the fuel system. Remove the
fuel filler cap, then relieve fuel pressure by loosening the banjo bolt
connecting the fuel line to the fuel filter. Place a shop towel or rag
over the wrench while loosening the banjo to soak up any fuel spray

(See Fig. 1)

. When loosening or tightening the banjo bolt on the
fuel filter can, use a 19mm wrench of the hex of the fuel filter can
to counteract the torque of loosening or tightening the banjo bolt.
This will prevent the fuel filter can and bracket from being
improperly loaded during loosening or tightening at the banjo bolt.
If your vehicle has a special banjo bolt at the fuel filter, which has a
service bolt in the top of the banjo bolt, use a 6mm box end wrench
to loosen the service bolt at the fuel filter while holding the banjo
bolt with another wrench. Keep the banjo or service bolt loose until
all pressure is relieved.

5. Remove the banjo bolt from the fuel filter and disconnect the fuel
supply line from the fuel filter. Using a small, fuel safe container,
allow the excess fuel to drain from the fuel line and fuel rail.

6. Disconnect the factory fuel return line from the steel tubing on the
firewall. Use rags or a small, fuel safe container to catch any spills.

7. Disconnect the wiring harness from the fuel injectors and from the
fuel rail. If your vehicle is equipped with a purge valve, disconnect
the wiring from the purge valve.

8. Remove the vacuum line from the factory fuel pressure regulator.
Refer to the instructions supplied with the 4796 fuel rail, and remove
the fuel rail, factory fuel pressure regulator, supply line, and return
line from the vehicle as one assembly. Use care when separating
the fuel rail from the fuel injectors.

9. Install the supplied -8AN to -6AN Adapter Fittings (with o-rings) into
the fuel rail using a bit of o-ring lube on the o-rings. Install the 1/8
NPT pipe plugs (supplied with fuel rail) if the gauge ports are not
being used (see fuel rail instructions). Always use liquid teflon
thread sealant on pipe threads.

10. Inspect the injectors and transfer them to the new fuel rail as
described in the fuel rail instructions.

11. Install the fuel rail / injector assembly on the intake manifold as
shown in the fuel rail instructions.

FUEL PRESSURE REGULATOR MOUNTING:

1. Install the provided fittings into the fuel pressure regulator

(See Fig.

2)

. Install one -6AN Dry Sump Union in the inlet port and one in the
return port (located at the bottom of the regulator). Install the -6AN
block off plug in the fuel outlet port of the regulator. Slip the -6AN
Female coupling nut over the -6AN female to -4AN male coupling.
Install this assembly over the -6AN dry-sump fitting previously
installed in the return port of the regulator. Install the vacuum fitting
supplied with the regulator in the port on the top half of the
regulator. Install the pressure adjusting screw and jam nut at the
top of the regulator. See the instructions provided with the regulator
for more information.

Figure 1 - Relieving Fuel Pressure at Fuel Filter

BEFORE BEGINNING INSTALLATION

BEFORE BEGINNING: Someone who has a basic knowledge of automobile repair and modification and is familiar with and comfortable with working

on their vehicle can accomplish the mechanical installation of this kit using common tools and procedures. However, this kit is designed to allow you
to custom fit the fuel lines to your application, and will require that you cut hoses to fit and drill holes for Fuel Pressure Regulator mounting. If you do
not feel comfortable with any of the steps listed below, please consult a qualified professional installer. Make sure to read the instructions provided
with the supplied fuel rail and fuel pressure regulator. These will be referenced throughout this instruction sheet.

AFTER INSTALLATION, BEFORE STARTING THE VEHICLE: ALWAYS make sure to check for any leaks BEFORE starting the vehicle. Reconnect the
battery and turn the ignition key to the “on” position. This will activate the fuel pump and pressurize the fuel system. If any leaks are present, turn
the ignition “off”, disconnect the battery, and make the necessary corrections before continuing.