OEM Chevrolet Metro Brake Master Cylinder

Chevrolet Metro Brake Master Cylinder Parts and Q&A

• Master Cylinder
  91171387
  Q: How to replace the brake master cylinder on Chevrolet Metro?

  A:

  First disconnect the negative power cable from the battery and clean the reservoir cap before removing it. Drain fluid from the reservoir and detach the fluid level sensor electric connection. Take away all three brake hoses from the master cylinder when they are not equipped with abs. Uncap these connector nuts with the right tool. When changing the Brake Master Cylinder take the two brake pipes off both the master cylinder and proportioning valve by loosening their nuts on models that have abs. Seal the exposed brake pipes before damage and leakage occur. Disassemble the unit by taking out the two master cylinder nuts and washers alongside the master cylinder and its gasket from the vacuum booster. Bleed the master cylinder properly on a workbench. Then install the new gasket and master cylinder into place using the two mounting nuts and washers before tightening them to 13 nm (115 inch lbs.). Connect brake pipes to the master cylinder and proportioning valve system on abs models, fasten them by hand and tighten master cylinder brake pipe flare nuts to 12 ft. Lbs. Plug the power cables for the fluid level switch and reconnect the car battery. Finally, bleed the brake system.
• Master Cylinder
  91171388
  Q: How to service and repair the Brake Master Cylinder on Chevrolet Metro?

  A:

  The Broken Master Cylinder repair work starts with adding brake fluid after you poured it into the reservoir. Keep the reservoir full while bleeding the system. Place tubing adapters into each valve opening of the master cylinder and link tubes to them before placing the free end of tubes into brake fluid. Insert a wooden or plastic dowel into the master cylinder piston slowly. Push and release the piston several times while checking for fluid bubbles until none exist.