Front camshaft oil seal — replacement (engine is still on the car) (Opel Ascona C)

1. The front camshaft oil seal can be replaced without removing the camshaft itself. To do this, do the following.

2. Remove the camshaft timing belt (see section 5).

3. Holding the camshaft with a wrench, unscrew the bolt securing the camshaft sprocket and remove the sprocket.

4. Punch or drill a small hole in the middle of the seal. Screw a screw into the hole and, grasping it with pliers, pull out the seal.

5. Clean the oil seal seat with a wooden or plastic scraper. Lubricate the lips of the new seal, install it with the lips inward and drive it into place using a piece of pipe and a wooden hammer. Be careful not to damage the seal lips during installation: if a protective sleeve is supplied with the new seal, use it.

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b. Install the camshaft sprocket in place and tighten the bolt securing it to the required torque (see Specifications).

7. Install and tighten the camshaft timing belt (see section 5). If the belt is oily, it should be replaced.