Lincoln F6TZ-7052-A Seal Assembly - Oil

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Raise the vehicle and support it securely on jackstands. Drain the transaxle fluid if the filler plug is higher than the lowest part of the seal to prevent fluid loss during seal removal. Mark the rear driveshaft to transfer case yoke orientation, remove the driveshaft from the yoke and swing it out of the way. Remove the driveshaft at the rear axle and slide the driveshaft out of the transfer case extension housing. Hold the rear yoke with a suitable tool and remove the center retaining nut. Remove the yoke nut and washer. Remove the yoke and slinger from the transfer case rear output shaft. Remove early model non-flanged seals with a slide-hammer and adapter or carefully pry the seal out of the case bore with a blunt screwdriver. Remove later model flanged seals using a seal remover and slide hammer or tap out an edge of the seal using a dull screwdriver. Inspect the oil seal contact surface on the case for scoring or burrs and remove them with emery cloth or fine sandpaper. Apply multi-purpose grease to the oil seal and position it squarely into the case bore. Drive the seal squarely into the bore using an appropriately sized seal driver, large socket, or pipe section. Clean the yoke splines and lubricate lightly with multi-purpose grease, then slip the slinger and yoke over the output shaft and carefully past the new seal until it bottoms. Coat the face of the yoke retaining nut with RTV sealant and apply thread locking compound to the threads. Install the rubber seal, washer, and yoke retaining nut onto the output shaft. Tighten the retaining nut to the torque. Install the rear driveshaft. Check and refill the transfer case lubricant as necessary. Remove the jackstands and lower the vehicle. Shift out of 4WD and unlock hubs before returning the vehicle to normal service.

Oil leaks may occur due to wear of the extension housing oil seal, or the vehicle speed sensor seal, and these are fairly easy to replace, and it is normally does not require that the transmission needs to be unbolted from the car. To perform the extension housing seal leak check, jack up the vehicle and securely support on jack stands: engage the parking brake and if equipped, turn off the air suspension system. A leaking extension housing seal will show transmission lubricant on the front of driveshaft and may drip down from rear of the transmission. Starting with the removal of driveshaft, tap the dust shoe if in place with a soft-face hammer so as not to distort it. Remove the extension housing seal without marring the splines of the trans output shaft. Replace the old extension housing seal with a new one with the assistance of a section of pipe or a deep socket, thereafter replacing the bushing should one be required. Lubricate the splines of the output shaft of the transmission and outside of the driveshaft sleeve yoke with light weight grease before installing the driveshaft making sure that you do not damage the lip of the new seal. After that, deflate the vehicle if you are using Air suspension system then switch it on. To access the vehicle speed sensor which is on the left side of the extension housing, you have to lift the vehicle and support it well and in case the vehicle is of air suspension type, then you should switch off the air suspension. A leaking sensor seal will mean that transmission lubricant will be seen dripping from the left side of the extension housing. Disconnect the electrical connector from the vehicle speed sensor then remove the bolt to hold the sensor and pull the sensor in a line with the opening. Remove the 0-ring and replace it, using lubrication on the new one so as to afford it protection during the process. Replace the sensor and grease the seal and the sensor with fresh engine oil and then lower the car and switch on the air suspension system if any.

This procedure applies to automatic transmission equipped models, with the exception of specific steps. Oil leaks frequently occur due to wear of the extension housing seal, which can be replaced relatively easily without removing the transmission from the vehicle. If a leak is suspected at the extension housing seal, raise the vehicle and support it securely on jackstands. The seal is located at the rear end of the transmission, where the driveshaft is attached; signs of a leak include transmission lubricant on the front of the driveshaft and possible dripping from the rear of the transmission. To begin, remove the driveshaft. For 2WD models, remove the transmission flange lock nut using a flange holding tool or chain wrench, then remove the transmission flange, which may require a small puller. For all models, carefully pry out the seal using a screwdriver, pry bar, or seal removal tool, and inspect the extension housing bore for burrs, removing any found with emery cloth or medium grit wet-and-dry sandpaper. Clean the bore with a cloth dipped in solvent to remove any oil or sanding residue. Apply a small amount of silicone sealant to the outside diameter of the new oil seal and grease the seal lip. Install the new oil seal using a seal driver, large socket, or section of pipe, ensuring it is driven into the bore squarely and completely seated. For 2WD models, install the flange and locknut, tightening the locknut to the specified torque, and then connect the driveshaft.

Oil leaks may occur due to wear of the extension housing oil seal, or the vehicle speed sensor seal, and these are fairly easy to replace, and it is normally does not require that the transmission needs to be unbolted from the car. To perform the extension housing seal leak check, jack up the vehicle and securely support on jack stands: engage the parking brake and if equipped, turn off the air suspension system. A leaking extension housing seal will show transmission lubricant on the front of driveshaft and may drip down from rear of the transmission. Starting with the removal of driveshaft, tap the dust shoe if in place with a soft-face hammer so as not to distort it. Remove the extension housing seal without marring the splines of the trans output shaft. Replace the old extension housing seal with a new one with the assistance of a section of pipe or a deep socket, thereafter replacing the bushing should one be required. Lubricate the splines of the output shaft of the transmission and outside of the driveshaft sleeve yoke with light weight grease before installing the driveshaft making sure that you do not damage the lip of the new seal. After that, deflate the vehicle if you are using Air suspension system then switch it on. To access the vehicle speed sensor which is on the left side of the extension housing, you have to lift the vehicle and support it well and in case the vehicle is of air suspension type, then you should switch off the air suspension. A leaking sensor seal will mean that transmission lubricant will be seen dripping from the left side of the extension housing. Disconnect the electrical connector from the vehicle speed sensor then remove the bolt to hold the sensor and pull the sensor in a line with the opening. Remove the 0-ring and replace it, using lubrication on the new one so as to afford it protection during the process. Replace the sensor and grease the seal and the sensor with fresh engine oil and then lower the car and switch on the air suspension system if any.

After removing the oil seal, inspect the oil seal contact surface on the case for any damage and clean it.

To replace the fuel pump, follow these steps:1. Remove the fuel pump/sending unit assembly from the vehicle carefully.2. Install a new rubber gasket during reassembly.3. Adjust the angle and travel distance if the float arm and float wire loop were damaged during removal and installation.

Position the seal into the front output shaft housing bore and make sure the oil seal is not cocked in the bore.

Install the driveshaft.

Remove the front driveshaft from the axle input yoke and tie it up out of the way.

Install a new one with a special tool made for this purpose, available at most auto parts stores that carry tools.

To replace the oil seal, apply multi-purpose grease and position it squarely into the case bore with the markings facing outwards. Drive the seal into the bore using an appropriately sized seal driver or equivalent tool.

To replace the extension housing oil seal on 2WD models, follow these steps: 1. Raise the vehicle on jackstands. 2. Remove the driveshaft, flange/yoke nut, and washer. 3. Remove the dust shield. 4. Carefully pry out the old oil seal and bushing, using a special removal tool if needed. 5. Install the new oil seal. 6. Reinstall the dust shield. 7. Reassemble the driveshaft, flange/yoke, and nut. 8. Lubricate the splines and driveshaft sleeve yoke. 9. Install the driveshaft. 10. Lower the vehicle.

Using a seal remover and slide hammer or tap out an edge of the seal using a dull screwdriver.

Raise the vehicle and support it securely on jack stands. Caution: If the vehicle is equipped with Automatic Ride Control (ARC), make sure the air suspension switch is turned to the OFF position before the vehicle is raised to prevent damage to the system components.

Raise the vehicle and support it securely on jack stands.