Exhaust System: Adjustments
Exhaust System, Aligning Free of StressExhaust System:
Legend
1 Exhaust Manifold, Left
2 Exhaust Manifold Gaskets
3 Exhaust Manifold, Right
4 Heated Oxygen Sensors (H02S)
Bank 1
Bank 2
5 Nut
6 Front Exhaust Pipe With Three Way Catalytic Converter (TWC), Right
7 Hanger
8 Double Clamp
9 Retaining Loop
10 Center Silencer
11 Retaining Loop
12 Rear Silencer
13 TWC, Left
14 Bolt
15 Seal
16 Nut
17 Nut
18 Washer
19 Left Front Exhaust Pipe
NOTE:
^ To avoid noises and stresses in the exhaust system the exhaust system should be aligned free of stress as follows:
^ Loosen all exhaust system bolted connections (except exhaust manifold) including attaching parts for TWC.
^ While aligning the exhaust system, also be sure that hangers and other attaching parts are installed free of stress.
^ The dimensions listed are reference dimensions.
^ The exhaust system should be aligned when cold.
^ Check alignment at various points, in the order shown.
Checking Exhaust System Pre-Load
Check pre-load -a- at left retaining loop for rear silencer.
- Dimension -a- = approx. 10-12 mm (7/16 inch).
- Arrow points toward front of vehicle.
Alignment Of TWC
A - 13-17 mm (approx. 1/2-11/16 inch).
B - 9 mm (approx. 3/8 inch).
C - Parallel to lower edge of vehicle
NOTE:
^ The TWC's are shown as viewed from the rear.
^ The distance from the pipes to the crossmember must be at least 34 mm {1-11/32 inch).
Installed Position Of Double Clamps Between Twc And Middle Silencers
NOTE:
^ After loosening, the bolted double clamps MUST be replaced.
^ Double clamps are shown from the rear of the vehicle.
Install double clamps as shown. Bolt ends must not extend beyond lower edge of clamping sleeve.
Nut tightening torque: 40 Nm (30 ft. lbs.).
Aligning Tailpipes
Distance -a- equal on both sides
Distance -b- to bumper cut-out = approx. 20 mm (3/4 inch).
Adjusting Exhaust System Pre-Load
Illustration shows left-rear retaining loop for the rear silencer.
Adjust pre-load -a- by moving double clamps between middle silencer and rear silencer.
- Dimension -a- = approx. 10-12 mm (7/16 inch).
- Arrow points toward front of vehicle
Checking Exhaust Pipe Clearance
Illustration shows cross-section of exhaust pipes -A- between center silencer and rear silencer at rear axle -B-, and clearances -a- and -b- to body and rear axle.
- Clearance -a- = approx. 27 mm (1-1/16 inch).
- Clearance -b- = approx. 20 mm (3/4 inch).
NOTE: Exhaust pipes are shown as viewed from the rear.
Installed Position Double Clamps Rear
NOTE:
^ Center silencer and rear silencer pipes are pushed together until they fit properly in double clamps.
^ After loosening, the double clamps must be replaced.
^ Double clamps are shown from the rear of the vehicle.
Install double clamps as shown. Bolt ends must not extend beyond lower edge of clamping sleeve.
Nut tightening torque: 40 Nm (30 ft. lbs.).