Acura NSX 1991 Manual page 251

Main Menu Table of Contents
Fuel Supply System
Fuel Pressure
Relieving
Before disconnecting fuel pipes or hoses, release pres-
sure from the system by loosening the 6 mm service
bolt on top of the fuel filter.
• Do not smoke while working on the fuel system.
Keep open flames or sparks away from your work
area.
• Be sure to relieve fuel pressure while the ignition
switch is off.
1. Disconnect the battery negative cable from the bat-
tery negative terminal.
2. Remove the fuel fill cap.
3. Place a box end wrench on the 6 mm service bolt at
the fuel filter, and hold the special banjo bolt with
another wrench.
4. Place a rag or shop towel over the 6 mm service
bolt.
5. Slowly loosen the 6 mm service bolt one complete
turn.
NOTE:
• A fuel pressure gauge can be attached at the 6 mm
service bolt hole.
• Always replace the washer between the service
bolt and the special banjo bolt whenever the ser-
vice bolt is loosened.
• Replace all washers whenever the bolts are
removed.