Aeromotive 13129 User Manual

13129 Installation Instructions

WARNING!

The fuel system is under pressure. Do not open the fuel system until the
pressure has been relieved. Refer to the appropriate vehicle service manual for
the procedure and precautions for relieving the fuel system pressure.

NOTE: Testing the enclosed regulator by applying air pressure or vacuum to the vacuum port with a
hand-held pump will yield poor results, due to the slight air leakage through the adjustment screw
threads. This minute leakage, which is typical of all adjustable fuel pressure regulators, does not, in any
way, affect the performance of the regulator.

The enclosed fuel pressure regulator may not hold significant fuel pressure after the fuel pump
stops running.

Part # 13129 regulators utilizes two o-ring sealed AN-06 style inlet/outlet ports and one o-ring
sealed AN-6 style bypass port; these regulator ports are NOT PIPE THREAD
THREAD SEALANT. To use the enclosed regulator in your vehicle’s fuel system, you must install
the necessary adapter fittings and o-rings, high pressure fuel lines and/or fuel injector rails to
adapt your system to the configuration and ports of this regulator. Each regulator has one 1/8"
NPT gauge port. This port requires thread sealant to seal. The following instructions assume that
your fuel system has already been configured for use with this regulator.

and utilize NO

CAUTION:

Installation of this product requires detailed knowledge of automotive
systems and repair procedures. We recommend that this installation be carried
out by a qualified automotive technician.

Installation of this product requires handling of gasoline. Ensure you are
working in a well ventilated area with an approved fire extinguisher nearby.
Extinguish all open flames, prohibit smoking and eliminate all sources of ignition
in the area of the vehicle before proceeding with the installation.

When installing this product, wear eye goggles and other safety apparel as
needed to protect yourself from debris and sprayed gasoline.

Aeromotive system components are not legal for sale or use on emission controlled motor vehicles.

The following steps are typical of most installations:

1. Once the engine has been allowed to cool, disconnect the negative battery cable and relieve the fuel

system pressure.

2. Remove any cosmetic covers necessary to allow access to the fuel pressure regulator.

3. Remove the vacuum line from the regulator (some vehicles do not have vacuum operated regulators).

4. Place shop towels around the regulator to catch any gasoline that is spilled during this step of the

installation. Remove any regulator mounting hardware and connecting fuel lines, then carefully
remove the regulator.

5. Find a suitable place in the vehicle’s engine compartment to mount the Aeromotive regulator. Using

the supplied mounting bracket as a template, mark the bracket mounting holes and drill to accept a
#10 screw.

6. With the bracket attached to the regulator, mount the bracket and regulator to the vehicle using two

#10 screws, nuts and lock washers.

7. Attach the fuel line(s) from the fuel rail outlet port(s) to the regulator side ports using AN-06 style

fittings and o-rings (Aeromotive p/n 15606). If only one fuel supply line is used, install an AN-06 style
plug and o-ring (Aeromotive p/n 15626) into the second regulator inlet port.

Inlet Ports, AN-06 Inlet Ports, AN-06

8. Attach the fuel return line to the regulator bottom port using an AN-6 style fitting and o-ring.

Return Line Port
AN-06

9. Tighten all connections.

10. Once the regulator is installed, attach a suitable fuel pressure gauge to the 1/8 NPT port on the fuel

pressure regulator (0-100psi 1.5" fuel pressure gauge, part # 15633). Use thread sealant when
installing fuel pressure gauge.