Note: Only the left end of the front head intake camshaft has a seal. This is because this shaft drives the coolant pump with a belt. On the latest models, the seal is supplied with the housing and cannot be replaced separately. The camshaft drive sprockets are covered by a chain cover.
1. Disconnect the negative battery cable.
2. Disconnect the coolant hose from the plastic cover on the front of the engine. Remove the bolts and remove the cover.
3. Remove the coolant pump drive belt by pulling the tensioner toward the camshaft. Remove the belt and carefully release the tensioner.
4. Remove the camshaft pulley using a small screwdriver.
5. On early models, pry out the seal with a small screwdriver.
6. On later production models, remove the oil seal housing bolts from the cylinder head and remove the gasket.
7. Wipe the camshaft seal seat or cylinder head joint.
8. On early models, lubricate the lip of the seal with engine oil. Then tap the seal into place through the tube. Wipe off any remaining oil.
9. On later models, install a new gasket on the seal housing, lubricate the edge of the seal with engine oil. Install the seal housing on the cylinder head, guiding the seal onto the end of the camshaft. Tighten the bolts to the specified torque.
10. Place the pulley on the camshaft, tightening the bolt and nut with washers. The end of the pulley should be flush with the end of the camshaft. If necessary, heat the pulley with a gas torch before installation.
11. Move the tensioner toward the camshaft and place the belt on the water pump pulley. Release the tensioner and check that the belt is correctly positioned in the pulley grooves.
12. Install the plastic cover and tighten its bolts. Secure the cooling system hose.
13. Connect the negative battery cable (Chapter 5, paragraph 1).
Note: To restore the engine management system settings due to the battery being disconnected, a mileage of approximately 16 km is required. In this case, the engine may not operate quite normally.
The article was taken in its entirety from the specified website: FORDBOOK