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Home >> Nissan-Datsun >> 2004 >> Sentra SE-R >> Repair and Diagnosis >> External Pages >> Different car >> Section 854 (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 2003 Nissan Murano. 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 take care to avoid damaging parts with the assembly tools.
  • Do not drop parts. If a part is dropped, do not use it.
  1. Apply brake 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 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 Secondary Piston And Primary Piston
    G01198802Courtesy of NISSAN MOTOR CO., U.S.A.
  2. Visually check the secondary piston slit through the tank boss hole on the secondary side of the cylinder body, and insert the piston stopper.
    Fig 2: Inserting Piston Stopper
    G01198803Courtesy of NISSAN MOTOR CO., U.S.A.
  3. Holding down the primary piston with the stopper cap, push the stopper cap claws so they are firmly into the cylinder grooves, then install the stopper cap.
    CAUTION: Do not reuse the stopper cap.
  4. Apply brake fluid to the grommet and install to the cylinder body.
    CAUTION: Do not reuse the grommet.
  5. Master cylinder assembly is fixed in the vise as described in "disassembly: step 2".
    Fig 3: Installing Stopper Cap
    G01198804Courtesy of NISSAN MOTOR CO., U.S.A.
  6. Using a pin punch [commercial service tool: diameter approx. 4 mm (0.16 in)], insert the reservoir tank mounting pin into the pin hole so that the attachment side and the opposite side are identical.
CAUTION: Do not reuse reservoir tank grommet and mounting pin.
Fig 4: Inserting Reservoir Tank Mounting Pin Into Pin Hole Using Pin Punch
G01198805Courtesy of NISSAN MOTOR CO., U.S.A.