Exhaust System Alignment

EXHAUST SYSTEM ALIGNMENT





Exhaust system hangers minimize noise transfer through hangers. If the system contacts the body, or the hanger is restricted, vibration and noise can be transmitted into the vehicle.
Position the clamps and the insulators so that the hangers are vertical when the exhaust system is at operating temperature. The support brackets should be horizontal.
If the pipes need to be repositioned, heat may be used in front of rear suspension. The support brackets should be horizontal. Do not touch the pipes while they are hot. Do not use an acetylene torch neat the fuel tank.

After the hangers and/or the repositioning pipes have been adjusted, check the entire system for adequate clearance to frame members and floor plan, minimum 15 mm (5/8 inch). Tighten all of the clamps according to specified torque's. Clearance is needed to avoid possible damage to the passenger compartment carpets. Distribute the weight of the exhaust system evenly on all brackets and hangers as indicated by an equal deflection at each hanger.

Some vehicles may exhibit exhaust system misalignment due to an improper installation process of the front pipe (L67). When installed low in the assembly, the front pipe (L67) can pull the exhaust system forward and hit part of the body. The pipes being installed low in the assembly can also make the exhaust system close enough to the body that when the vehicle goes over a bump, it may contact the body. To properly correct the condition, reinstall the rear pipe based upon the on-vehicle service procedure. The exhaust system should move into proper alignment.