Genuine Mazda Protege Exhaust Manifold

Mazda Protege Exhaust Manifold Parts and Q&A

• Manifold
  FP49-13-450
  Q: How to remove and install an exhaust manifold on Mazda Protege?

  A:

  To access the exhaust manifold, first unhook the negative cable of the battery and other electrical connector of the oxygen sensor of the exhaust manifold. Removal of the sensor is required in case of a new manifold being installed. Then get rid of the heat shield bolts and detach the heat shield on the manifold. Streak penetrating oil on the exhaust manifold mounting bolts/nuts and the exhaust pipe nuts. Lift the car and place it safely atop jackstands and then unscrew the exhaust pipe off of the exhaust manifold and drop the car. In subsequent models, disconnect the exhaust pipe on the catalytic converter and disconnect the manifold with converter on it. Unscrew the manifold bolts/nuts and take the manifold off of the Cylinder Head, and put penetrating oil on any stubborn bolt/nut and give it time to penetrate, at least 15 minutes. In case the bolts/studs break during the removal process, vise-grip pliers should be used with the manifold removed to loosen the broken bolt/stud, or find stud removal tools where required. Installing a factory or exhaust system specific parts in place of damaged parts. To install, scraper all the traces of the old gasket material and carbon traces over the mating surfaces of the manifold and cylinder head, and be sure to inspect the manifold to determine whether it is warped or not in case the gasket was leaking. Install a fresh exhaust manifold gasket over the studs on the cylinder head, install the manifold and screw in the mounting bolts/nuts. Loosen the bolts/nuts in the middle to the fixed torque marked in a number of small steps and recontact the other components in the same order. In the event of reinstalling the oxygen sensor, use a special anti-seize thread lubricant. Lastly, operate the engine and examine exhaust emissions.