Oldsmobile 12541500 Pipe,Brake (Bulk Tubing 5/16" 8Mm)

Brake hoses are rubber covered flex hoses designed to transmit brake pressure from the metal tubes running along the frame to the calipers in front and wheel cylinders in the rear. To remove the hose, raise and support the vehicle, remove the through-bolt that fastens the hose to the caliper, remove any clips retaining the connection at the frame, and unscrew the flare fitting located on the pipe running along the frame. To install, replace the old hose with a new one, using new washers, then tighten the connection at the caliper, install any retaining clips or mounting brackets back into position, and lower the vehicle, then bleed the brake system.

Get the recommended tubing and correct fitting nuts. Cut tubing to length, ensuring fittings are pre-installed. Deburr and chamfer the pipe's edges. Clean the pipe and flaring tool. Secure the flaring tool in a vise. Choose the right collet and mandrel. Slide the clamping nut over the brake line into the collet. Tighten the clamping nut, then tighten the forcing screw. Disassemble the clamping nut and collet. Finally, bend the line for at least 0.75 in. (19mm) clearance from moving parts.

About every six months, inspect the flexible hoses that connect the steel brake lines with the front and rear brake assemblies for cracks, chafing, leaks, blisters, and other damage. Use a light and mirror for a thorough check. If any defects are found, replace the hose with a new one. To replace the hose, clean the ends and disconnect the brake line from the hose fitting using a back-up wrench. Remove the U-clip from the female fitting at the bracket and detach the hose from the bracket. Disconnect the hose from the caliper, discard the copper washers, and attach the new hose to the caliper using new copper washers. Pass the female fitting through the frame or frame bracket and install the fitting with the least amount of twist in the hose. Install the U-clip in the female fitting at the frame bracket and attach the brake line to the hose fitting using a back-up wrench. Check that the suspension or steering components do not make contact with the hose. Bleed the brake system. When replacing metal brake lines, use the correct parts and avoid using copper tubing. Purchase steel brake lines from a dealer parts department or auto parts store. Prefabricated brake lines with flared tube ends and installed fittings are available. Ensure the new line is well supported in the brackets and has sufficient clearance. After installation, check the master cylinder fluid level, add fluid if necessary, bleed the brake system, and test the brakes before normal operation.

Approximately every six months, raise the vehicle and securely support it on jackstands to inspect the flexible hoses connecting the steel brake lines to the front and rear brake assemblies. Look for cracks, chafing, leaks, blisters, or any damage. Thoroughly inspect the hoses using a light and mirror if needed, and replace any hose exhibiting the mentioned conditions. Replacement of Front Brake Hose: Disconnect the brake line from the hose fitting using a back-up wrench, then remove the U-clip from the hose fitting. Remove the hose from the bracket, and at the caliper end, remove the bolt from the fitting block along with the copper gaskets. When installing the new hose, use new copper gaskets and lubricate bolt threads with clean brake fluid before attaching. Attach the hose to the caliper with the fitting flange engaged in the caliper locating ledge, and install the female fitting in the hose bracket without twisting the hose. Reinstall the U-clip retaining the female fitting to the frame bracket and reattach the brake line to the hose fitting using a back-up wrench. Ensure there are no kinks in the hose and check for contact with suspension parts during extreme wheel turns. Rear Brake Hose: Disconnect the hose at both ends using a back-up wrench, remove the U-clips, and separate the female fittings from the brackets. Unbolt the hose retaining clip and remove the hose. Install the female ends in the frame brackets without twisting the hose, then reinstall the U-clips to retain the female end to the bracket. Attach the steel line fittings to the female fittings using a back-up wrench, ensuring the bracket isn't loosened during hose installation. Fill the master cylinder reservoir and bleed the system. Metal Brake Lines: When replacing brake lines, use prefabricated brake lines or obtain the recommended steel tubing and fittings to match the line to be replaced. Cut the new tubing to the correct length, flare the ends with an ISO flaring tool, and carefully bend the line to the proper shape if necessary. Install the new line securely supported in the brackets with sufficient clearance from moving or hot components. After installation, check the master cylinder fluid level, bleed the brake system, and thoroughly test the brakes before driving in traffic.

Periodically examine all hydraulic brake lines, both rigid and flexible, for rusting, chafing, and general deterioration, while also checking the security of the connections. If hoses or lines must be disconnected, extensive loss of fluid can be avoided by taping over the vent holes in the master cylinder fluid reservoir cap first. For drum brakes, use a back-up wrench on the hose fitting to unscrew the connector, remove the U-shaped retainer, withdraw the hose fitting from the support bracket, turn it out of the wheel cylinder, and remove the copper gasket. When installing, use a new copper gasket, moisten the screw threads with brake fluid, and torque-tighten to the wheel cylinder. With the weight on the suspension and the wheels straight ahead, insert the female end of the hose through the support bracket, allow it to seek its own position without kinking, then install the U-shaped retainer and secure the hose in the bracket. Turn the wheels from lock-to-lock to ensure that the hose does not contact other parts, repositioning the female end if necessary. Place the tubular steel connector in the hose fitting and torque tighten using a back-up wrench. After removing the tape from the master cylinder reservoir, top up with new brake fluid and bleed the system. For disc brakes, to disconnect a rigid line from a flexible hose, unscrew the connector from the hose end fitting located at the support brackets, holding the flexible hose and fitting still with an open-ended wrench. To remove the flexible hose, extract the retainer and pull the hose from the support bracket, then remove the hose to caliper bolt, the center connector, and the hose. Installation is a reversal of removal, always using new copper gaskets with the flexible hose end fittings and allowing the flexible hose to assume its natural curvature without securing it in a twisted or kinked position. Rigid lines that need replacement can be purchased at many auto parts stores; take the old line for a pattern, ensuring they are fitted with the correct connectors and that the ends are double-flared.

About every six months, inspect the flexible hoses that connect the steel brake lines with the front and rear brake assemblies for cracks, chafing, leaks, blisters, and other damage. Use a light and mirror for a thorough check. If any defects are found, replace the hose with a new one. To replace the hose, clean the ends and disconnect the brake line from the hose fitting using a back-up wrench. Remove the U-clip from the female fitting at the bracket and detach the hose from the bracket. Disconnect the hose from the caliper, discard the copper washers, and attach the new hose to the caliper using new copper washers. Pass the female fitting through the frame or frame bracket and install the fitting with the least amount of twist in the hose. Install the U-clip in the female fitting at the frame bracket and attach the brake line to the hose fitting using a back-up wrench. Check that the suspension or steering components do not make contact with the hose. Bleed the brake system. When replacing metal brake lines, use the correct parts and avoid using copper tubing. Purchase steel brake lines from a dealer parts department or auto parts store. Prefabricated brake lines with flared tube ends and installed fittings are available. Ensure the new line is well supported in the brackets and has sufficient clearance. After installation, check the master cylinder fluid level, add fluid if necessary, bleed the brake system, and test the brakes before normal operation.

Front and rear brake flexible hoses which connect the steel brake lines to the brake assemblies must be checked about every six months and this can be done accurately when the vehicle is resting on jackstands and (List down the following checks to be done on the flexible hoses,) Use a light and a mirror and in case the hose is damaged, it should be replaced with a new one. For the front brake hose, unscrew the brake line from the hose fitting with the assistance of a back up wrench, then remove the U-clip and the hose from the bracket,, At the caliper end, washers were removed from both the fitting block and the bolt and the hose as well as the copper gaskets were also removed. When replacing the new hose, use new copper gaskets, apply clean brake fluid to the bolt threads and assure that the fitting flange comes in contact with the caliper before applying the recommended torque. Slide the female fitting to the hose bracket with the hose lying flat and secure it with the U-clip, connect and tighten the brake line to the female hose fitting as required. After installation, take the time to carefully examine the hose and look for kinks and ensure that the hose is in no way touching any of the suspension parts and this is done by swerving the wheels to the left and then to the right. For the rear brake hose, the two steel brake lines connected to the junction block on the rear axle must be undone, the hose fixed at the female end has to be unscrewed, besides, the U-clip has to be removed. Mark the relative position of the junction block for assembly on the axle and saddle, then unbolt it and take out the hose. During installation you have to mate the steel line fittings into the junction block, then fasten the block to the axle tightening all nuts and bolts to the required torque. Place the female end of hose in the frame bracket using the U clip and the male steel line fitting in position, there should be no bending. Ensure the frame bracket is properly fitted and re-tighten if loose, then fill up the master cylinder reservoirs then bleed the clutch system. Currently, steel lines are used and when replacing these it is recommended that only double-walled steel tubing be used in the design in place of copper due to its fatigue and corrosion nature. Auto parts stores provide various brake line lengths ready made that can be bend by hand or with a tubing bender if not easily bendable. In case prefabricated lengths are not available get the recommended steel tubing and fittings, measure the old line for length and cut the new tubing accordingly but ½" extra for flaring purposes. Remove one of the ends of the cut tubing and put the fittings on the tubing; use the ISO flaring tool to flare the end to match the shape of the old line. The local auto parts stores can always do a tube flaring and bending and also guarantee a minimum of ¾ clearance from brake line to other moving parts on the car before installing.

At least twice a year, inspect the flexible hydraulic brake hoses connecting the steel brake lines with the front and rear brake calipers for any signs of cracks, chafing, leaks, blisters, or road damage, as these hoses are crucial and susceptible components of the brake system. A thorough inspection using a light and mirror is recommended, and any hose showing damage should be replaced. For the front brake hose, clean the hose and fittings, remove the rivet securing the brake hose clip to the upper A-arm, take off the U-clip from the female fitting at the support bracket, and detach the hose from the caliper, discarding the copper washers. When installing, use new copper washers, lubricate the bolt threads with clean brake fluid, attach the hose to the caliper without twisting, install the U-clip, rivet the brake hose clip back, and ensure there are no kinks in the hose while checking for contact with the suspension during wheel turns. For the rear brake hose, disconnect it from the brake line at the mounting bracket, remove the U-clip, detach the bracket from the strut, and take off the bolt securing the fitting block to the caliper. When installing, attach the hose assembly to the brake line, secure the spring clip, connect the fitting block to the caliper with new copper washers, and reattach the brake line to the strut, ensuring the brake fluid level is maintained and the system is bled. For steel brake lines, various lengths of prefabricated brake line are available, which can be bent by hand or with a tubing bender; if not available, obtain the recommended steel tubing and fittings, measure the old line for length, cut the new tubing with extra length for double-flaring, install fittings, and double-flare the ends before bending to match the old line's shape.

Inspect rubber brake hoses every six months for damage. For faulty hoses, replacement is necessary. For the front brake hose: disconnect the brake line from the hose fitting, remove the U-clip and hose from the bracket. At the caliper end, remove the bolt and hose. When installing, use new copper washers and lubricate bolt threads. Attach hose to caliper without twisting and secure with U-clip. For the rear brake hose: disconnect at the frame bracket, remove the U-clip, disconnect hydraulic lines, and remove the hose. Install the new hose, secure junction block, and use U-clips. Attach steel line fittings carefully. After replacements, refill and bleed the system. For metal brake lines, use proper steel brake lines, not copper. If replacing, use prefabricated lines or the recommended tubing and fittings, flare ends, and shape as needed.

Every six months approximately, lift the car and safely support it on jackstands to inspect the flexible hoses which connect the steel brake lines to the front and rear brake units as these hoses are quite essential and rather susceptible to cracks, abrasion, leaks, blisters or bulges and any of these should call for replacement of the affected hose with a new one; it will be advisable to use a light and a mirror while inspecting areas that can hardly To replace the front brake hose to start off, undo the brake line from the hose fitting using a back-up wrench and then remove the 'U' clip from the female end at the bracket and also removing the hose from the bracket. At the caliper end remove the bolt securing the fitting block, after that the hose and copper washers. On fitting a new hose, always fit new copper washers and before tightening bolt apply clean brake fluid to the threads of the bolt and ensure that the fitting flange goes under the caliper locating ledge before connecting the hose. Make sure the hose does not twist and put the female fitting inside the hose bracket and fasten it with a clip; next tighten the brake line to the female hose fitting with back-up wrench. After the installation, check to be sure that the hose is not kinked and does not come into contact with its suspension part by sharply turning the wheels to the left and to the right. For the rear brake hose, first way it with back-up wrench at both ends, then remove the U-clip, unbolt the hose retaining clip and put the female ends into the frame bracket without twisting. Screw the female end with the help of the U-clip and then fit the steel line fittings such that tightens the frame bracket. Refill master cylinder reservoir and carryout bleed procedure. When removing metal brake line, it is advised to replace it with the similar type, not to use copper or other type of tubing, there are prefabricated brake line available in auto part stores. If prefabricated lines are not available get recommended steel tubing and fittings, then you measure the old brake line and cut that of the new tubing flare the ends then fit the fittings. If necessary to put it through the desired shape, use the tube bender frequently to support the place where the line contacts the brackets with a safety clearance from other moving or hot parts. These steps are performing after installation, checking the fluid level of the master circuit, putting the fluid if available, bleaching the system and testing the brakes before operating it on the traffic.

Every six months, the rubber hoses should be inspected for any cracks, chafing, leaks, blisters, or other damage. This inspection should be thorough, and any hose exhibiting these conditions should be replaced.

Carefully avoid bending the frame bracket or line, ensure that the suspension or steering components do not make contact with the hose, and have an assistant push down on the vehicle and turn the steering wheel lock-to-lock during inspection.

About every six months.

About every six months.

About every six months.