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Home >> Nissan-Datsun >> 2004 >> Sentra SE-R >> Repair and Diagnosis >> External Pages >> Different car >> Section 1443 (Brake System) >> Brake Master Cylinder >> Disassembly and Assembly >> Models Without VDC >> Disassembly

Models Without VDC: Disassembly

WARNING: This page is about a different car, the 2005 Nissan 350Z. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Only remove the reservoir tank when absolutely necessary.
  1. Using a flat-bladed screwdriver as shown in the figure, lift up the tabs on the stopper cap and remove it from the master cylinder. The piston inside the master cylinder might pop out when this is done, so hold the stopper cap down at the same time.
    Fig 1: Removing Stopper Cap
    G02408805Courtesy of NISSAN MOTOR CO., U.S.A.
  2. Attach the attachment in the inner kit to the reservoir cap as shown in the figure.
    Fig 2: Attachment In Inner Kit
    G02408806Courtesy of NISSAN MOTOR CO., U.S.A.
    CAUTION: When attaching the attachment to the reservoir cap, make sure it is pointing in the right direction.
  3. Place the side of the cylinder body with chamfering around the pin insertion hole facing up, and secure the master cylinder assembly with a vise.
    Fig 3: Placing Side Of Cylinder Body
    G02408807Courtesy of NISSAN MOTOR CO., U.S.A.
    CAUTION:
    • Tighten without letting the pin securing the reservoir tank and cylinder body come in contact with the pin insertion hole of the reservoir tank.
    • When securing the master cylinder assembly with the vise, be sure not to over-tighten.
    • When securing in a vise, use copper plates or cloth to protect the flange.
  4. Using a pin punch [commercial service tool: diameter Approx. 4 mm (0.16 in)], remove mounting pins on the reservoir tank.
  5. Remove master cylinder assembly from the vise.
  6. Remove reservoir tank and grommet from cylinder body.
    Fig 4: Removing Master Cylinder Assembly From Vise
    G02408808Courtesy of NISSAN MOTOR CO., U.S.A.
  7. Using a Phillips flat-bladed screwdriver, push in the piston and remove the piston stopper from the cylinder body.
  8. Carefully pull the primary piston assembly straight out to prevent cylinder inner wall from being damaged.
    Fig 5: Removing Piston Stopper From Cylinder Body
    G02408809Courtesy of NISSAN MOTOR CO., U.S.A.
  9. Tap flange using a soft block such as wood, and carefully pull the secondary piston assembly straight out to prevent cylinder inner wall from being damaged.
    Fig 6: Pulling Secondary Piston Assembly
    G02408810Courtesy of NISSAN MOTOR CO., U.S.A.