Nissan Micra K11 silhouetteK11

MASTER CYLINDER (NABCO)

BR-7008prose procedure
Continued from BR-7007

Disassembly

  1. 1
    Drive out elastic pin from cylinder body.
    Illustration showing technician driving out elastic pin from cylinder body using a punch and hammer.
    SBR231E
  2. 2
    Remove reservoir tank and seals.
  3. 3
    Remove piston retaining pin through secondary port. Apply pressure to plunger and remove pin with long-nose pliers.
    Illustration of master cylinder with arrow indicating piston retaining pin being removed through secondary port using long-nose pliers.
    NBR013
  4. 4
    Remove the circlip while plunger is pushed into the assembly.
  5. 5
    Remove piston assemblies.
    Wear eye protection and protective clothing.
    If it is difficult to remove secondary piston assembly, gradually apply compressed air through fluid outlet.
    Illustration of technician using compressed air gun to apply pressure through fluid outlet to remove secondary piston assembly while wearing protective equipment.
    SBR113B

Inspection

Check for the following items.
Master cylinder
Pin holes or scratches on inner wall.
Piston
Deformation of or scratches on piston cups.
Piston guide assembly
Damage or damage on seal surface.
Rubber seals
Slits, damage on seal surface.
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