OEM 2004 Toyota Matrix Brake Master Cylinder

2004 Toyota Matrix Parts Questions & Experts Answers

• Q: How to overhaul the brake master cylinder on 2004 Toyota Matrix?

  A: Start the brake master cylinder overhaul procedure by draining the brake fluid before swiftly cleaning brake fluid contact areas on painted surfaces. First detach the air cleaner cap sub-assembly before you disconnect the brake fluid level switch connector at the master cylinder reservoir sub-assembly. The clutch reservoir tube connector No.1 can be detached by moving the clip in manual transmission vehicles. Use Special Service Tool: 09023-00100 to disconnect both brakes tubes from the master cylinder and both or three brake tubes from the No.1 way prior to pulling out the master cylinder and No.1 way with vacuum check valve bracket by removing their two nuts. The first step entails removing the reservoir stopper screw and the master cylinder reservoir sub-assembly and then the two cylinder reservoir grommets. The correct method for removing the brake master cylinder kit involves placing the master cylinder into a vise between two aluminum plates while removing the O-ring followed by pushing in the piston before using snap ring pliers to take out the snap ring. The piston requires pushing while the piston stopper bolt and gasket should be extracted. Then use caution when lifting the No.1 piston sub-assembly out directly to safeguard the cylinder bore. The work table should have a cloth situated 100 mm (3.94 inches) above wooden blocks to drop out the No.2 piston sub-assembly after light tapping. The brake master cylinder installation requires inspecting the cylinder bore for rust and scoring first before you insert the piston sub-assemblies into the master cylinder following grease application with lithium soap base glycol on the No.1 and No.2 parts. Make sure to avoid angled insertion. Install a new gasket together with the piston stopper bolt before torquing to 10 Nm (102 kgf-cm, 7 ft. lbs.), this being followed by installing the snap ring. The O-ring should receive lithium soap base glycol grease before being installed into the master cylinder. Insert grease to the two grommets of the brake master cylinder reservoir sub-assembly before installing it with the screw and tightening it to 1.8 Nm (18.4 kgf-cm, 15.9 inch lbs.). With Special Service Tool: 09737-00012 and its flat-tipped pin set on the master cylinder observe the piston contact point after lowering the pin until slight touch occurs. The tool must be flipped upside down for placement on the brake booster and the measurement should register 0 mm (0 inch). To achieve the proper brake push rod length for clearance correction use Special Service Tool: 09737-00020 by depressing the brake pedal sufficiently. Install all parts using Special Service Tool: 09023-00100 by torquing connections to 15.2 Nm (155 kgf-cm, 11 ft. lbs.). Begin by nutting the master cylinder and No.1 way and vacuum check valve bracket with 12.5 Nm (127 kgf-cm, 9 ft. lbs.). Then push connectors between the two or three brake tubes and two master cylinder tubes to the proper specifications. Users of manual transmission cars should reattach the clutch reservoir tube No.1 to the master cylinder reservoir sub-assembly using a clip and reinstall the brake fluid level switch connector. The last process includes replacing the air cleaner cap sub-assembly followed by brake fluid addition then bleeding the master cylinder using Special Service Tool: 09023-00100 and completing the brake line bleeding before inspecting reservoir fluid levels and checking for leakage.