AEM 25-109BK High Volume Fuel Rail - Manual (Page 4)

c) On models not equipped with a 6mm service bolt:
i) Use a box end wrench on the 12mm banjo bolt on top of the fuel filter.
ii) Place a rag or shop towel over the 12mm banjo bolt.
iii) Slowly loosen the 12mm banjo bolt one complete turn or until all pressure has been relieved.
iv) Torque the 12 mm banjo bolt to 25lb-ft.
3) Removal of stock fuel rail, injectors and fuel pressure regulator
a) Loosen and remove the nut holding the fuel inlet banjo fitting to the fuel rail. Be careful not to
loose either of the two crush washers.
b) Disconnect the wire harness connectors from the fuel injectors.
c) Disconnect the vacuum hose from the fuel pressure regulator.
d) Place a rag or shop towel over the fuel pressure regulator and remove the two 6mm retaining
bolts.
e) Position the fuel pressure regulator out of the way. Be careful not to loose the o-ring that goes
between the fuel rail and the fuel pressure regulator.
f) Loosen and remove the retainer nuts/bolts on the fuel rail, injector harness, and any other
components that may be bolted to the fuel rail.
g) Remove the fuel rail from the intake manifold.
h) Remove the fuel injectors from the intake manifold. Note: Some models have an injector insulator
on the injector tip (the end of the injector that goes into the intake manifold) and some models do
not. Note the arrangement your model has and be sure to reassemble the injector assembly
correctly.
i) Refer to figure 2 as a guide for proper disassembly/reassembly.
Fig. 2
Cushion Ring
(Inspect)
O-Ring
(Replace)
Torque to 9lb-ft.
Injector Insulator
(Some Models: Inspect) Seal Ring
(Inspect)
Regulator
Wire Harness