Exhaust System: Description and Operation

DESCRIPTION
The exhaust pipe to exhaust manifold connection uses either the ball joint type, flange with flex joint or the flex joint decoupler to allow angular movement between the engine and exhaust system. Periodic maintenance of the exhaust system is not required; however, if the car is raised for other service, it is advisable to inspect the condition of the catalytic converter, pipes and muffler.


CAUTION: When a flex decoupler joint is moved from the normal mounting position it is possible to over-flex and damage the joint. Always support the flex decoupler joint and pipe assembly to avoid over-flexing. The flex decoupler joint is designed to flex a maximum of six degrees which is equivalent to the pipes connected to the joint moving no more than 1 inch for every 1 foot length of pipe, (if the pipe connected to the joint is 3 feet long, the end of the pipe could be moved a maximum of 3 inches).

OPERATION
The exhaust system is supported by free-hanging rubber mountings which permit some movement of the exhaust system, but minimizes the transfer of noise and vibration into the passenger compartment. When replacing a muffler, the tailpipe should also be replaced.

CAUTION: When jacking or lifting car from frame side rails, be certain lift pads do not contact the catalytic converter; damage to the converter will result.