Fig. 437. Remove the camshaft sealing ring using a special puller
The camshaft seal can be replaced on an installed engine if traces of oil are observed near it. The seal is located behind the camshaft pulley. To avoid damaging the cylinder head or camshaft, a special tool is required to remove the seal (Fig. 437). The cam engages between the working edge of the seal and the camshaft under the seal, so that the seal can be loosened and pulled out under the action of a lever. The seal can also be removed using a beveled lever.
To gain access to the camshaft, the toothed drive belt must be removed as described in section 17.4.1.
Fig. 438. Knock off the camshaft gear by inserting a mandrel from behind and hitting it briefly from behind with a plastic or rubber hammer
Fix the camshaft gear in a stationary position (for example, using an old toothed drive belt wrapped around a toothed wheel, or a mandrel inserted into one of the holes of the toothed wheel) and unscrew the gear bolt. Remove the bolt and washer. Knock down the gear by inserting a mandrel into it from behind, as shown in Fig. 438.
Using pliers, remove the woodruff key from the camshaft.
Remove the oil seal using the described method.
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