Nissan 240sx Power Brake Unit

Nissan 240sx 1989-1994 S13



Removal
Remove master cylinder. Disconnect power unit push rod from brake pedal by removing clevis pin. Disconnect vacuum line from power brake unit. Remove power brake unit-to-firewall nuts. Remove power brake unit.

Installation
To install, reverse removal procedure. Before installing master cylinder, adjust booster output push rod.

POWER BRAKE UNIT CHECK VALVE REMOVAL AND INSTALLATION

1. Check valve is located in vacuum line between intake manifold and power brake unit. To remove, disconnect retaining clip from firewall (if equipped). Remove hose clamps, separate hoses from valve, and remove check valve.
2. Inspect check valve to ensure air flows in direction of intake manifold only. If air flows both ways or does not flow at all, replace check valve. To install, reverse removal procedure.

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Nissan 240sx 1989-1994 S13

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