Ford 7T4Z-9430-C
Exhaust Manifold, Passenger Side

First remove both the RH catalytic converter then disconnect the RH heated oxygen sensor (HO2S) electrical connector for right-hand (RH) exhaust manifold servicing and repair. The six nuts holding the RH exhaust manifold should be removed before discarding both the nuts along with the gasket. The cleaning process of RH exhaust manifold follows inspection before discarding six RH exhaust manifold studs. The sealing surfaces require cleaning with a plastic scraper because metal scrapers and wire brushes produce scars and grooves which cause leakage so refer to product instructions for metal surface prep treatment. The installation procedure requires six new RH exhaust manifold studs which need to be fastened to 12 Nm (9 lb-ft) torque. A second tightness adjustment of exhaust manifold nuts according to specification remains necessary to avoid exhaust leaks. Install the RH exhaust manifold using new gasket materials followed by securing it with six new nuts which must be tightened to 20 Nm (15 lb-ft) in two installation steps. Reconnect the RH HO2S electrical connector before installing the right-hand catalytic converter in place.

A proper service or repair of the right-hand (RH) exhaust manifold requires removal of the RH catalytic converter first. To begin you should detach the RH heated oxygen sensor (HO2S) electrical connector before removing the six nuts which fix the RH exhaust manifold along with disposing both the nuts and the gasket. Prepare the RH exhaust manifold before removing and throwing out the six exhaust manifold studs that belong to the RH side. The exhaust manifold mating surface on the cylinder head should get cleaned only with a plastic scraper and metal surface preparation according to the product directions while avoiding any usage of metal scrapers or wire brushes or abrasive instruments because they can form gashes and scratches that result in leaks. The installation procedure requires new RH exhaust manifold studs which must be tightened to 9 foot pounds (12 Nm). With a new gasket installed the RH exhaust manifold should be secured using six new nuts that need to be tightened according to specified sequence to 20 Nm (15 ft. lbs). Reconnect the RH HO2S electrical connector when you reinstall the right-hand catalytic converter.

The removal process for the right-hand (RH) exhaust manifold demands initial steps of catalytic converter extraction and disconnected Heated Oxygen Sensor (HO2S) electrical connection. The next step requires you to detach six nuts holding the RH exhaust manifold in place while discarding the nuts as well as the gasket. Begin by cleaning the RH exhaust manifold followed by a stud removal process of its six components which leads to disposal. The sealing surfaces require cleaning with a plastic scraper from which metal scrapers and wire brushes and abrasive tools must be avoided due to their potential to create leaking defects. Follow the packaging instructions to perform metal surface prep on the exhaust manifold mating surface of the cylinder head. Follow this installation procedure by using six new RH exhaust manifold studs that need to be tightened to 12 Nm (106 lb-in). The process of exhaust leak prevention requires two-stage torque tightening of new exhaust manifold nuts beginning with a torque of 20 Nm (177 lb-in) followed by a torque of 25 Nm (18 lb-ft). Install the RH exhaust manifold first using a new gasket before the torque sequence starts. The RH HO2S electrical connector needs to be restored while the RH catalytic converter must be installed.

You must detach the RH heated oxygen sensor (HO2S) electrical connector followed by removing the RH catalytic converter to work on repairing or servicing the RH exhaust manifold. The six nuts connecting the RH exhaust manifold require removal before you should dispose of both parts along with their gasket. First clean the RH exhaust manifold followed by inspections before discarding the six RH exhaust manifold studs. The service requires using only a plastic scraper to avoid surface damage while following metal surface prep instructions for suitable cleaning of the exhaust manifold mating surface on the cylinder head. You should use six new RH exhaust manifold studs which must be tightened to 12 Nm (9 lb-ft). Preventing leakages in the exhaust depends on performing a proper torque relap of the exhaust manifold nuts before final tightening. The RH exhaust manifold needs installation with new gaskets then you should fasten it with six new nuts while applying 20 Nm (15 lb-ft) torque first and repeating the torque to 20 Nm (15 lb-ft). Complete installation by reconnecting the RH HO2S electrical connector before reinstalling both the right-hand catalytic converter.

Service and repair of the right-hand (RH) exhaust manifold starts by taking off the RH catalytic converter while disconnecting the RH heated oxygen sensor (HO2S) electrical connector. Begin by taking out six nuts which secure the RH exhaust manifold before trashing both the nuts and the gasket. You should clean the RH exhaust manifold and then remove six RH exhaust manifold studs while discarding all of them. The use of plastic scrapers should replace metal scrapers and wire brushes or abrasive tools because they can make leaks happen through surface scratching or gouging. Follow the product instructions when cleaning the exhaust manifold mating surface on the cylinder head with metal surface prep. The installation requires new six red-hand exhaust manifold studs that need torque adjustment to 12 Nm (9 lb-ft). Two torques rounds on the exhaust manifold nuts remain crucial to avoid exhaust leakage. After installing a new gasket in place, the RH exhaust manifold should get its support from six new nuts which must be torqued two times first to 20 Nm (15 lb-ft) and second to 20 Nm (15 lb-ft). The installation process should end with connecting the RH HO2S electrical connector followed by reinstallation of the RH catalytic converter.

Service and repair of the right-hand exhaust manifold begins with removing the RH catalytic converter followed by separating the RH heated oxygen sensor electrical connector. The service starts with unfastening six nuts from the RH exhaust manifold while discarding both nuts and gasket. The RH exhaust manifold needs cleaning before the six manifold studs need removal for discarding them. Use a plastic scraper to cleanse sealing surfaces because metal scrapers along with wire brushes as well as abrasive instruments create damage that can produce leaks during the exhaust manifold and cylinder head mating process according to product instructions. The installation process includes using six new RH exhaust manifold studs which need tightening to 12 Nm (9 ft. lbs.). New gaskets along with six new nuts allow you to mount the RH exhaust manifold properly while tightening the sequence of nuts to 20 Nm (15 ft. lbs.). After this step the RH HO2S electrical connector needs to be reconnected while also reinstalling the RH catalytic converter.

Install 6 new LH exhaust manifold studs and tighten them to 12 Nm (9 lb-ft). It is essential to tighten the exhaust manifold nuts to specification a second time to prevent exhaust leaks.

Avoid using metal scrapers, wire brushes, or abrasive tools.

Begin by removing the LH catalytic converter and the LH heated oxygen sensor (HO2S).

Reinstall the LH exhaust manifold heat shield with the 3 bolts, tightening them to 25 Nm (18 ft. lbs.), followed by the installation of the LH HO2S and finally the LH catalytic converter.

Metal scrapers, wire brushes, or abrasive tools.

Clean and inspect the LH exhaust manifold, then remove and discard the 6 LH exhaust manifold studs.