Attention! Allow the engine to cool completely before starting this operation.
Note. Exhaust system parts are often difficult to remove - they burn through the repeated cycle of heating and cooling to which they are constantly subjected. To facilitate removal, apply a penetrating compound to all threads of the exhaust manifolds and exhaust pipes and let it soak in.
Front manifold
1. Disconnect the wire from the negative battery terminal.
2. To gain access to the manifold, remove the cooling fan (see chapter 3, section 4).
3. Unscrew the bypass from the flange (U-shaped) pipe mounting bolts (see illustration).
9.3. The exhaust manifolds are bolted to the exhaust pipe (shown by arrows)
4. Unscrew the nut that secures the dipstick tube for measuring the oil level and unscrew the dipstick tube from the block.
5. Remove the wires from the front spark plugs (see chapter 1, section 33).
6. Remove heat shield if present (see illustration).
9.6. Details of the front exhaust manifold heat shield: 1 - shield, 2 - washer, 3 - nut
7. Turn away bolts of fastening of a final collector and disconnect a collector from a head of cylinders (see illustration).
9.7. Front exhaust manifold mounting details: 1 - manifold, 2 - bolt
Rear exhaust manifold
8. Disconnect a wire from a negative conclusion of the storage battery.
9. Disconnect wires from candles of back cylinders (see chapter 1, section 33).
10. Disconnect the throttle cable bracket.
11. Remove the bypass pipe heat shield.
12. Remove the two bolts securing the bypass pipe to the rear exhaust manifold.
13. Remove the plastic tank fixed on the deflector.
14. Raise the car and securely fasten it on the racks.
15. Remove the heat shield of the manifold, if equipped (see illustration).
9.15. Rear Exhaust Manifold Heat Shield Details: 1 - shield, 2 - fastening details
16. Remove the heat shield of the catalyst and its suspension.
17. Loosen the bracket for the automatic transaxle hydraulic dipstick tube and remove the tube.
18. Disconnect the oxygen sensor connector.
19. Remove the three nuts from the underside of the exhaust manifold (see illustration).
9.19. Rear Exhaust Manifold Details: 1 - manifold, 2 - bolt
20. Lower the car.
21. Remove the engine lift bracket.
22. Turn away three top nuts of fastening of a final collector and separate a collector from a head.
23. If you want to replace the manifold itself, remove the oxygen sensor (see chapter 6, section 4) and install it on the new manifold.
Installation
24. Clean the mating surfaces of the exhaust manifold and cylinder head from the remnants of the material of the old gasket, then check the manifold for deformations and cracks. If the manifold gasket is torn, take the manifold to a repair shop for resurfacing.
25. Install the manifold in place with a new gasket and hand-tighten its mounting bolts.
26. Starting from the center and working towards the edges, tighten the mounting bolts one at a time until they are all tightened to the required torque specified in the specifications given in this chapter.
27. Install the rest of the parts in reverse order.
28. Having started the engine, check up joints between a collector and a head of cylinders and between a collector and an exhaust pipe on leak of the fulfilled gases.