Replacing the camshaft seal (VW Golf 2)

The camshaft seal can be replaced without removing the engine if an oil leak is noticed in the area where it is installed.

The seal is located behind the toothed pulley of the camshaft. To remove the seal, special tool No.2085 is required (figure 62). The procedure for using it will be described below. If you do not have it, then use a hook to remove the seal.



Remove the retaining belt after loosening the generator mounting bolts and move it to the middle.

Disconnect the upper timing belt cover from the engine block head.

Turn the crankshaft so that the piston of the first cylinder is at TDC. For installation, use the marks used to adjust the ignition.

Loosen the bolts securing the fluid pump (see section), and remove the toothed belt from it. The belt must be carefully tied, without twisting, so that it cannot fall off the toothed pulley of the crankshaft. Now the crankshaft cannot be turned, since the installation of the valve timing phases will be disturbed. Block the toothed pulley of the camshaft (for example, with an old toothed belt) and loosen the bolts securing the pulley. Remove the bolts and washers.



Remove the toothed pulley from the shaft. Remove the key from the shaft groove.

Remove the rear timing belt casing mounting bolts from the cylinder head, the upper fluid pump mounting bolt, and remove the casing.

Take the special puller Nq 2085 (see figure 62), turn its inner part (A) 2 turns, pull it out of the housing by 3 mm and lock it in this position with the screw (B).

Lubricate the threaded part of the puller body and put it on the camshaft until it touches the oil seal. Using constant force on the ratchet, screw the puller onto the oil seal (figure 63).



Loosen the screw (pos. B, see figure 62) and turn the inner part until the seal is removed.

Secure the puller in a vice and remove the seal with pliers. Lubricate the shaft mounting surfaces and the working edge of the new seal with engine oil. Use a mandrel or a piece of pipe of a suitable diameter to install it. It should fit completely against the seal collar. Install the seal and press it flush with the cylinder head surface. Do not completely recess the seal, as it can block the return oil channel opening.