OEM 2009 Chevrolet HHR Brake Line

2009 Chevrolet HHR Brake Line Parts and Q&A

• Q: How to properly replace brake lines to ensure system integrity on 2009 Chevrolet HHR?

  A: During the replacement of brake pipes, it is always important to use double-walled steel brake pipe so as to avoid brake system failure, correct routing and retention of the replaced pipes with the right fasteners in their original locations. If cutting the section of brake pipe, you will need to replace that portion with a pipe of same type and outside diameter and connections of the type and size that fit the original concept and creating flares that are in accord with the intent of the original. Start by checking out the brake pipe area to be repaired, release it from retainers if necessary and determine the location for the sectioning with the clearance for the J 45405 (Pipe Flaring Tool Kit). Measure the length of the pipe to be replaced with a certain covering of the necessary length as flares. It is 6.35 mm (0.250 in) for 4.76 mm (3/16 in) diameter pipe, 9.50 mm (0.374 in) diameter for 6.35 mm(one-quarter in) diameter pipe, and 12.67 mm (0.499 in) diameter for 7.94 mm (5/16diameter). Use the pipe cutter from the J45405 to cut the brake pipe to the measured using the pipe cutter, remove the cut piece and choose the right size of brake pipe and a tube nut. Strip off nylon coating from end to flare with the help of the coating stripping tool from the J 45405, do not gouge the metal surface and chamfer inside and out diam. with de-burring tool from the J 45405. Install the tube nuts, clean the brake pipe and the J45405 from contaminants, prepare the dies for flaring. Install the prepared part of the pipe into the die cage, tighten clamping screw and flare it using forming mandrel and then finish it using the finishing cone to get proper shape. Check the flare to ensure it is of correct diameter. Green areas are divided according to the diameter of pipe and the diameter ranges that influence the failure of pipe sections: 6.74-7.10mm (0.265-0.279in) for 4.76mm (3/16in), 8.57-9.27mm (0.344-0.358in) for 6.35mm (1/4in), and 10.42-10.79mm (0.410-0.425in) for 7.94mm (5/16in). Make the new pipe form with a brake pipe bending tool if needed, provide a clearance of 19 mm (3/4 in) from moving components, install the pipe along with enough unions to it and attach it to retainers, bleed hydraulic brake, and lastly inspect for leaks by cranking the engine and pressing the brakes with help.