Nissan 14002-JA10A Exhaust Manifold Assembly

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To accomplish removal of the exhaust manifold, it is required to detach the cable of negative terminal on the battery. Lock the rear wheels, engage the parking brake, partially remove the lug nuts of the right front wheel, lift the front part of the vehicle, and put it on jackstands before finally removing the right front wheel. Subsequently, look for the engine splash shields and the right inner fender splash shield, and then the drivebelt portion. Continue by taking out the alternator and pull the electrical connection of the oxygen sensor. Next, unbolt and pull off the heat shield from the exhaust manifold while using penetrating oil on the bolts if required; similarly disconnect the exhaust pipe from the manifold. Undo the exhaust Manifold brace, the nuts holding the manifold to the cylinder head from outside progressively to the middle to come out with the manifold and gasket. When installing, it is necessary to scrape the mating surfaces of the exhaust manifold and the cylinder head, lay the new gasket over the cylinder head studs and put the manifold while tightening the nuts into the threads. Loosening the nuts first rather than tightening them, to the recommended torque and reassembly of the remaining components in the reverse order while applying anti seize lubrication on the studs of the exhaust pipe. Last, rejoin the battery and run the needed re-learn operations.

Tighten the nuts and bolts gradually, working from the center out to the specified torque, and on 2011 and later models, follow the proper tightening sequence.