OEM 2003 Toyota Tacoma Brake Master Cylinder

2003 Toyota Tacoma Brake Master Cylinder Parts Q&A

• Q: How to service and repair the Brake Master Cylinder on 2003 Toyota Tacoma?

  A: The service and repair of Brake Master Cylinder starts with reservoir removal by unscrewing the set screw while ensuring 1.5 Nm torque (15 kgf-cm or 13 inch lbs.) and then removing the cap and strainer. A vise receives the cylinder after you remove its two grommets. Completely extend the pistons using a screwdriver before uninstalling the piston stopper bolt and its gasket under 8.0 Nm torque (80 kgf-cm or 69 inch lbs.). Use snap ring pliers and tape a screwdriver tip for removing snap rings from the pistons and springs where a hand should push the piston into the screwdriver before removal. Start the procedure by hand-removal of the No. 1 piston and spring with a precision method designed to protect the cylinder bore while avoiding plastic damage at the piston lips. The task to extract the No. 2 piston and spring begins after positioning a rag and two wooden blocks on the work table while tapping the cylinder flange onto the block edges until the piston falls out. The rag must be at least 100 mm (3.94 inch) away from the top blocks. Inspection of the cylinder bore requires compressed air cleaning followed by examination for rust and scoring then a check for damage and wear. When necessary replace or clean the cylinder. The reverse procedure of disassembly takes place during reassembly while lithium soap base glycol grease is applied to rubber parts marked by arrows.