Nissan Z - ZX 1970-1988 Repair Guide

Proportioning Valve

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See Figures 1 and 2



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Fig. Fig. 1: Example of proportioning valve installed in engine compartment



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Fig. Fig. 2: Brake line routing through proportioning valve

REMOVAL & INSTALLATION



  1. Disconnect and plug the brake lines at the proportioning valve.
  2.  
  3. Remove the mounting bolt and the valve.
  4.  

On 1970-72 models, the "M'' faces the master cylinder and the "R'' is toward the rear brakes. On the 1973-83 models, the "F'' faces the front brakes and the arrow points toward the rear brakes. On the 1984 and later models, the proportioning valve is part of the master cylinder. DO NOT disassemble the valve.

  1. To install, reposition the valve and tighten the mounting bolt.
  2.  
  3. Connect the line and bleed the brake system.
  4.  

 
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