OEM Ford Thunderbird Brake Master Cylinder

Ford Thunderbird Brake Master Cylinder Parts and Q&A

• Master Cylinder
  XW4Z-2140-AA
  Q: How to service and repair the brake master cylinder on Ford Thunderbird?

  A:

  Service and repair of the brake master cylinder requires disconnecting the fluid level sensor connector first. The service begins by extracting Vapor Management Valve (VMV) nuts which allows the technician to disconnect the VMV hose and safely position the valve to one side. Complete the brake tube removal by disconnecting the tubes then remove the brake master cylinder nuts. First detach both the fuel line and vapor management hose from their fastener then put them aside before you take out the brake master cylinder. Installation of the brake master cylinder requires reversing all removal procedures with proper brake system bleeding as the final step. DOT 3 or DOT 4 fluid represents the only brake fluid option because improper fluid types will lead to long-term brake component malfunction which can result in total brake failure. Handle brake fluid properly because exposure to eyes should be minimized along with contact to painted surfaces and plastic materials and hand washing follows exposure. Emergency treatment requires rinsing the eyes with water for fifteen minutes followed by medical help for persistent irritations. Drinking water followed by vomiting induction leads to an immediate need for professional medical help.
• Master Cylinder
  6W4Z-2140-A
  Q: How to Properly Bleed the Brake Master Cylinder on Ford Thunderbird?

  A:

  The safety procedure for brake system bleeding begins with avoiding brake fluid contact because it contains polyglycol ethers and polyglycols and must be followed by handwashing and eye flush with running water for 15 minutes after which medical care should be sought if irritation continues. The brake master cylinder reservoir requires a steady supply of DOT 3 motor vehicle brake fluid during the process because emptying the reservoir allows air to enter the system which causes the Brake Pedal to become spongy. It is important to prime the brake master cylinder system before new installation or after emptying it because this protects against air entry. Install two short brake tubes at the brake master cylinder fittings and let their ends remain in the reservoir where you fill the tank with brake fluid. A helper should activate the brake pedal by pumping it so clear fluid with no bubbles appears from both tubes. Reinstall the brake tube fittings into the brake master cylinder when all short tubes have been taken away. The process to bleed a fitting demands having the assistant pressure the brake pedal firmly before releasing the rear brake tube fitting to drain fluid while tightly securing the fitting. Repeat the bleeding process until the fluid stream runs without bubbles while keeping the reservoir supply sufficient before proceeding with the front tube fitting. The assistant should keep brake pedal pressure until the two brake master cylinder tube fittings achieve a torque of 13 Nm (10 ft. lbs.).