REMOVAL & INSTALLATION
See Figure 1
To prevent leaks, the pressure regulator diaphragm assembly must be replaced whenever the cover is removed.
- Properly relieve the fuel system pressure.
- Raise the hood, install fender covers and remove the air cleaner assembly.
- Disconnect the negative battery cable.
The pressure regulator contains a large spring under heavy compression. Use care when removing the screws to prevent personal injury.
- While keeping the pressure regulator cover compressed, unfasten the 4 pressure regulator retaining screws.
- Remove the pressure regulator cover assembly, then remove the spring, spring seat and diaphragm assembly. Discard the diaphragm assembly.
- Check the pressure regulator seat in the fuel meter body cavity for pitting, nicks or irregularities. Use a magnifying glass if necessary. If any of the above is present, the whole fuel body casting must be replaced.
- Install the new pressure regulator diaphragm assembly, making sure it is seated in the groove in the fuel meter body.
- Install the regulator spring seat and spring into the cover assembly.
- Install the cover assembly over the diaphragm, while aligning the mounting holes. Be sure to use care while installing the pressure regulator to prevent misalignment of the diaphragm and possible leaks.
- Coat the regulator retaining screws with Loctite 262 or equivalent suitable thread sealer, then install the screws and tighten 22 inch lbs. (3 Nm).
- Tighten the fuel filler cap, then connect the negative battery cable.
- Turn the ignition switch to the ON position for two seconds, then turn to OFF position for five seconds. Turn the switch ON again and check for fuel leaks.
- Install the air cleaner assembly.