How to Replace the Intake/Exhaust Manifold in a Toyota Corolla

Written by ehow cars editor
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Toyota is better known than any other auto maker as a builder of study, reliable cars. The Corolla secured that reputation for Toyota. The model is known for its practicality and the number of people who bought a Corolla is staggering. The process for removing and installing the exhaust manifold in the second through fourth generations (1970 to 1982) for the 2T-C and 3T-C engines is the same except for the torque specifications.

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    Remove the Exhaust Manifold

  1. 1

    Pull the negative battery cable from the terminal. Raise the vehicle on jack stands and make sure it is securely supported.

  2. 2

    Located the gravel shield on the underside of the engine and remove it. Remove the support bracket for the downpipe.

  3. 3

    Loosen the bolts from the exhaust flange and then remove them. Pull the downpipe from the manifold.

  4. 4

    Remove the manifold bolts in two or three passes. Start at the center of either side and work out, using a criss-cross pattern. Lift the manifold out.

    Install the Exhaust Manifold

  1. 1

    Clean any gasket material and debris from the mating surface. Use compressed air and solvent. Inspect the surface for any damage.

  2. 2

    Install a new gasket. Set the exhaust manifold in place.

  3. 3

    Tighten the bolts using the correct torque (see Tips). Tighten the bolts in sequence, starting at the center and working out in a criss-cross pattern, making three passes.

  4. 4

    Replace the downpipe. Set the exhaust flange in position and tighten the bolts. Replace the gravel shield.

  5. 5

    Reconnect the negative battery cable. Start the engine and check for exhaust leaks. Turn off the engine and lower the vehicle from the jack stands.

Tips and warnings

  • Torque specifications: 1971 through 1977 2T-C, 7 to foot pounds; 1978 and 1979 2T-C, 22 to 32 foot pounds; 1980 through 1982, 3T-C, 22 to 32 foot pounds.

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