Catalytic Converter: Adjustments

Exhaust System:

NOTE: Aerostar exhaust systems contain a flexible coupling and should not require alignment.

If alignment is required, perform the following procedures to align the complete exhaust system:

1. Loosen pipe connections at exhaust manifold and all other flanges.

2. Align the flat flanges between the three way catalytic converter and muffler .

3. Rotate the muffler to provide sufficient clearance to the frame, body and drivetrain to avoid ground-out conditions. Tighten flange nuts to 25-35 Nm (18-26 lb.ft.).

NOTE: Manifold nuts or bolt heads must bottom out on the fixed flange.

4. Tighten exhaust manifold connection by alternately tightening the right side and left side nuts to 34-46 Nm (25-34 lb.ft.).