Note: There are two ways to replace the oil seal, depending on whether the camshaft oil seal housing has been removed or not.
1. If the camshaft oil seal housing is removed from the cylinder head.
a) Using a screwdriver and hammer, remove the seal.

b) Lubricate the seal with consistent grease.
c) Using a mandrel (a tube of suitable diameter) and a hammer, press the new seal into the housing flush with the edge of the housing.

2. If the camshaft oil seal housing is not removed from the cylinder head.
Location of EGR system components.
1 - control lever position sensor,
2 - EGR valve,
3 - vacuum control electro-pneumatic valve,
4 - absolute air pressure sensor in the intake manifold,
5 - electro-pneumatic valve for increasing idle speed when the air conditioner and heater are turned on,
6 - diagnostic connector,
7 - electronic control unit fuse,
8 - electronic control unit,
9 - EGR electro-pneumatic valve,
10 - coolant temperature sensor.
a) Using a knife, trim the edge of the oil seal as shown in the figure.

b) Using a screwdriver, remove the seal from the cover.
Note: Wrap the end of the screwdriver with electrical tape and be careful when removing the oil seal to avoid damaging the camshaft.

c) Lubricate the seal with consistent grease.
d) Using the frame (or a tube of suitable diameter) and a hammer, press the oil seal into the camshaft oil seal housing socket.

