Ford F37Z-9430-L Exhaust Manifold Assembly

Before removing L exhaust manifold, they should release the air-conditioning refrigerant and then recover it; they also should take off the cable connected to the negative of the battery. Next, they should disconnect spark plug's wires and their holders as well from the vehicle motor. Lift the vehicle and place it on jack stands firmly and if it has automatic ride control, switch off the air suspension control if not damaged. It is also necessary to apply the penetrating oil on the studs and nuts of the exhaust pipe to manifold interface and let it work for as long as possible before trying to remove the rust. Discharge the air intake duct and the drive belt. To remove the manifold for the right side, it is necessary to detach the bolts and the drive belt tensioner and to remove the electrical connectors of the alternator and the mounting bracket of the alternator. Pop out all the pushpins that are situated around and then dismantle the inner fender well splash shield, next, undo all the manifold mounting bolts you will also find that with the manifold comes the heat shield. For the left side manifold, on the first step, you need to un-bolt and pull off the engine oil dipstick tube and subsequently, the air-conditioning compressor. Once more, take out pushpins and also disconnect the inner fender well splash shield and also the manifold mounting bolts and the exhaust manifold. The component is first installed and during the same process, cracks on the manifold should be checked as well as the bolt threads. The surfaces of mating area of the manifold and cylinder head should be free from dirt and the previous gasket and carbon deposits can be removed by using a gasket scraper. Place the manifold and gasket on the head, screw in the mounting bolts and tighten them progressively by cycles of sixty, thirty and zero use the torque wrench. The remaining installation steps are opposite to the removal sequence which is as follows. Last, engage the engine and look for exhaust gas leakage; if that A/C compressor was taken off, the system must be evacuated, charged, and leak tested.

To remove the left exhaust manifold, first, remove the oil dipstick tube bracket from the engine and, on models manufactured after 1997 remove the exhaust gauge air (EGA) tube from the exhaust manifold, and the EGA valve. If the power steering pump hoses interfere with manifold removal, unbolt the hoses from the pump; put caps on the fittings to keep dirt out; and move the hoses clear of the way. Again for the right exhaust manifold, remove the heater hose bracket and relieve the pressure from the heater hoses. Third, one needs to remove the exhaust pipe from the manifold(s) that might include using a wrench to loosen up the exhaust pipe nuts, hence may involve lifting the car and placing it on stands to access the exhaust pipe joints. Make sure, if the vehicle has Automatic Ride Control, the air suspension switch is off before lifting the vehicle to prevent the damage of system components. Take out all the bolts and then proceed to take off the exhaust manifold off from the cylinder head. During installation assemble the exhaust system cleaning the mating surfaces on the cylinder head, and exhaust manifold as well as exhaust pipe with a scraper and solvent. Spread graphite grease on the cylinder head mating surface, fit the manifold to it and tighten the bolts taking care to apply equal force so that they are tightened to the correct quantity of torque. Most of these engines can be assemble without the exhaust manifold gaskets, provided the mated surfaces are flat and in good condition; warped or damaged manifolds may require a gasket or re-surfacing which are available locally from auto parts stores. After that you ought to join the exhaust nipple to the exhaust manifold and the nuts should be tightened up to the recommended torque. Other steps of installation are the reverse of the removal and if its heater hoses were disconnected then fill the cooling system. Last of all, start the engine and look for exhaust noted leakages.