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Home >> Nissan-Datsun >> 2004 >> Sentra SE-R >> Repair and Diagnosis >> External Pages >> Different car >> Section 1485 (Brake System) >> Brake Master Cylinder >> Disassembly and Assembly >> Without VDC Models >> Assembly

Without VDC Models: Assembly

WARNING: This page is about a different car, the 2005 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
  • Never use mineral oils such as kerosene, gasoline during the cleaning and assembly process.
  • Make sure there is no foreign matter such as dirt or dust attached to the inner cylinder walls, the piston, or the cap seal, and use care to avoid damaging parts with the assembly tools.
  • Do not drop parts. If a part is dropped, do not use it.
  1. Apply fluid to cylinder inner wall body and contact surface of the piston assembly. Then insert secondary piston assembly and primary piston assembly into cylinder body in this order.
    CAUTION:
    • Do not reuse the primary and secondary piston assemblies.
    • Be sure to replace the assembly without disassembling the new inner kit.
    • Pay attention to the orientation of the piston cup, and insert straight to prevent the cup from being caught by cylinder inner wall.
      Fig 1: Identifying Primary & Secondary Piston
      G02447630Courtesy of NISSAN MOTOR CO., U.S.A.
  2. Perform a visual inspection of the secondary piston slit through the tank boss hole on the secondary side of the cylinder body, and install the piston stopper.
    Fig 2: Installing Piston Stopper
    G02447631Courtesy of NISSAN MOTOR CO., U.S.A.
  3. Holding down the piston with the stopper cap, push the stopper cap tabs so they are firmly into the cylinder grooves, then attach the stopper cap.
    CAUTION: Do not reuse the stopper cap.
  4. Apply brake fluid to the grommet and attach to the cylinder body.
    CAUTION: Do not reuse the grommet.
    Fig 3: Pushing Stopper Cap Tabs
    G02447632Courtesy of NISSAN MOTOR CO., U.S.A.
  5. Fix master cylinder assembly is a vise as described in disassembly step 2.
  6. Using a pin punch [commercial service tool: diameter approx. 4 mm (0.16 in)], attach the reservoir tank mounting pin so that the attachment side and the opposite side are identical.
    CAUTION: Do not reuse reservoir tank grommet and mounting pin.
    Fig 4: Installing Reservoir Tank Mounting Pin
    G02447633Courtesy of NISSAN MOTOR CO., U.S.A.
  7. If necessary, install brake fluid level switch.