OEM Chrysler PT Cruiser Backing Plate

Chrysler PT Cruiser Backing Plate Parts and Q&A

• Splash Guard, Rear Driver Side
  4728111
  Q:

  How to remove the Backing Plate from the brake system on Chrysler PT Cruiser?

  A:

  To remove the backing plate, first ensure safety by depressing the brake pedal past its first inch of travel using a brake pedal holding tool to isolate the master cylinder from the brake hydraulic system, preventing brake fluid from draining. Next, raise and support the vehicle, then remove the three wheel mounting nuts and the tire and wheel assembly. For vehicles with antilock brakes, detach the three screws securing the antilock brake wheel speed sensor to the support plate and remove the sensor head. Disconnect the brake tube at the wheel cylinder, then take out any brake drum retaining clips before removing the drum. Remove the dust cap from the rear hub and bearing, followed by the hub nut securing the rear hub and bearing to the spindle, and slide the hub and bearing off. Compress the cable return spring to detach the parking brake cable from the parking brake lever, then remove the lower return spring. Compress and remove both shoe hold-down spring clips, and take out both shoes and remaining parts as an assembly from the anchor and the wheel cylinder. Use a 1/2 inch box wrench to compress the retainer fingers on the parking brake cable housing, then pull the cable housing out of the support plate. Remove the four brake support plate mounting bolts to separate the brake support plate from the spindle, and finally, remove the brake wheel cylinder attaching bolts to take out the brake wheel cylinder from the brake support plate.
• Splash Guard, Rear Passenger Side
  4728110
  Q:

  How should the wheel cylinder be installed on the Backing Plate on Chrysler PT Cruiser?

  A:

  When installing the wheel cylinder on the brake support plate, ensure it is positioned squarely (horizontal) to the brake support plate. Begin by installing the wheel cylinder onto the brake support plate and tightening the mounting bolts to 13 Nm (115 in. lbs.). Use new mounting bolts or clean and apply Mopar(R) Stud & Bearing Mount Adhesive or equivalent to the original mounting bolt threads before reuse. Next, install the brake support plate and seal on the spindle at the end of the axle, tightening the support plate mounting bolts to 95 Nm (70 ft. lbs.). Insert the parking brake cable into its mounting hole in the brake support plate, pushing the cable housing in until the retainer's fingers lock into place. Hand start the brake tube nut to the wheel cylinder and tighten it to 17 Nm (145 in. lbs.). Lubricate the shoe contact areas on the support plate and anchor using Mopar(R) Brake Lubricant or equivalent, and inspect the brake shoes before installation. Install the pre-assembled brake shoe assembly over the wheel cylinder and the anchor on the brake support plate, then install both shoe hold-down pins from the rear through the support plate and shoes. Compress and install the shoe hold-down spring clips on the pins, followed by the lower return spring. Compress the parking brake cable return spring, install the cable on the parking brake lever, and release the spring, guiding it beneath the retaining tab on the lever. Slide the hub and bearing onto the spindle and install a NEW hub nut on the spindle, tightening it to 217 Nm (160 ft. lbs.). Install the hub and bearing dust cap, and if equipped with ABS, install the wheel speed sensor head into the rear of the support plate, tightening the sensor mounting screw to 12 Nm (105 in. lbs.). Adjust the brake shoes to the drum diameter using a brake shoe gauge, then install the brake drum. Install the tire and wheel assembly, tightening the wheel mounting nuts to 135 Nm (100 ft. lbs.). Slowly rotate the rear wheel to verify that the brake drum lightly drags on the shoes, lower the vehicle, and remove the brake pedal holding tool. Bleed the affected wheel cylinder as necessary and conduct a road test to ensure proper brake operation.