OEM Buick Lucerne Brake Line

Buick Lucerne Brake Line Parts and Q&A

• Flex Hose, Front Passenger Side
  19366678
  Q: How to replace the front brake line on Buick Lucerne?

  A:

  When replacing the front brake hose start by lifting and stabilizing the vehicle followed by taking off the tire and wheel assembly. Take out dust and debris from brake hose and pipe connections. Put a rubber seal over the brake pipe opening to prevent leaking and foreign material entry. Use a flat-bladed tool to take off the brake hose retainer before taking the brake pipe fitting away from the brake hose. Lay aside the brake caliper when you disconnect the brake hose from its bracket and wrench off the two copper gaskets at the hose base and caliper end. Insert a rubber plug into the bolt hole of the caliper brake hose to keep brake fluid inside. Twist out the bracket bolt from the strut then take off the hose. To install the brake caliper bolt you need to take off its rubber plug and apply new copper brake hose gaskets. Use three new gaskets to build up the brake hose bolt before you assemble it to the brake caliper and tighten to 40 n.m (30 lb ft). Make sure the hose stays straight and flows towards its destination. Hold the brake hose to the bracket slot and tighten the retainer before taking off the brake pipe rubber cap. Secure the brake pipe fitting to the brake hose while tightening it to 15 n.m (11 lb ft), then attach and snug the hose bracket and bolt to the strut assembly using 17 n.m (13 lb ft). Afterward tighten the brake caliper at the bleed screw and put wheels onto the vehicle together with tire.
• Flex Hose, Front Driver Side
  19366720
  Q: How to Service and Repair Brake Lines Using the J 45405 Pipe Flaring Tool Kit on Buick Lucerne?

  A:

  When servicing and repairing the brake pipes, use the J 45405 Pipe Flaring Tool Kit (J 45405) and remember to adhere to safety measures for brake fluid irritants and steel double-walled brake pipes to ensure a system avoys failure. Start by examining the part of the brake pipe that needs to be replaced and breaking it off the retainers if required. Measure the dimension of the pipe for replacement, with each bend, and add the needed length for flares, making certain the end to flare is cut in a square of 90 degrees. Cut the brake pipe on the measured length using the pipe cutter that came with the J 45405 and take the sectioned pipe off the vehicle. Choose the correct size of brake pipe and tube members, strip the nylon coating off the brace ends to be flared with the use of the coating stripping tool in the J 45405, and chamfer the inner and outer diameter with the use of the de-burring tool found in the kit. Install tube nuts on the brake pipe and clean the pipe and the J 45405 free from any contaminants; prepare to flare the pipe by partially loosening the die clamping screw into the die cage as you install the die halves into the die cage. Push the prepared end of the pipe into dies, tighten clamping screw, and use a forming mandrel to flare the connector. After flaring, check the shape and diameter of flare, reshape the new pipe, if necessary, then to the vehicle with the appropriate unions. Finally secure the brake pipe to retainers and bleed the brake system for hydraulic brake, see if there is any leakage with engine running on and brakes applied.