Toyota 04311-12110 Cylinder Kit, Clutch Master

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To remove the master cylinder, start by releasing the spring clip on the supply hose at the top of the cylinder and disconnecting the hose. Clamp the fluid supply hose or use a plug to prevent fluid loss. Unscrew the slave cylinder supply pipe union at the side of the master cylinder, using penetrating fluid if necessary. Inside the car, move the driver's seat fully to the rear and remove the pedal return spring with needle-nosed pliers. Remove the spring clip and clevis pin to detach the clutch pedal. Remove the two master cylinder mounting nuts inside the car and withdraw the master cylinder. If the master cylinder is faulty, it will need to be replaced. To refit, tighten the mounting nuts and fluid pipe union to the specified torque. Ensure the fluid hose connection is clean and secure, and bleed the clutch upon completion.

To disconnect and remove the clutch master cylinder, begin by disconnecting the negative cable from the battery. Then, disconnect the hydraulic line at the clutch master cylinder, using a flare-nut wrench if available to prevent rounding off the fitting. Take precautions with rags as some fluid may be lost during the disconnection. Under the dashboard, disconnect the pushrod from the top of the clutch pedal, which is held in place with a clevis pin. Moving to the underside of the dash, remove the nuts securing the master cylinder to the firewall, ensuring not to spill any fluid during the removal. For installation, position the master cylinder on the firewall and install the mounting nuts finger-tight. Connect the hydraulic line to the master cylinder, adjusting the cylinder position as needed to properly thread the fitting into the bore, ensuring it is not cross-threaded. Tighten the mounting nut(s) and the hydraulic line fitting securely. Connect the pushrod to the clutch pedal. Fill the clutch master cylinder reservoir with brake fluid that conforms to DOT specifications and proceed to bleed the clutch system. Finally, check the clutch pedal height and free play, making adjustments if necessary.