Replacing the intermediate shaft seal (Renault Megane 1)

This procedure only applies to engines with an intermediate shaft (refer to Specifications). On engines without an intermediate shaft there is no seal or gasket behind the toothed roller.

1. Remove the intermediate shaft gear as described in Section Removal, inspection and installation of the toothed drive belt gear and tensioner mechanism.

2. Draw the installation depth of the seal, then drill two small holes in it opposite each other. Screw self-tapping screws into them and remove the seal with pliers.

On some models it may be necessary to remove the inner lower timing belt cover. In this case, remove the crankshaft timing gear and idler pulleys (refer to Section Removal, inspection and installation of the toothed drive belt gear and tensioner mechanism), then unscrew the lid.

3. Clean the oil seal housing and remove any burrs or irregularities that may cause damage to the oil seal using emery cloth.

4. Lubricate the sealing lips of the new seal and position it on the end of the shaft. Drive the seal into the housing to the depth noted earlier. If the shaft surface has been heavily worn, drive the new seal into the housing slightly deeper so that the sealing lip rubs against an unworn section of the shaft.

5. Where necessary, install the inner lower timing belt cover, then install the crankshaft timing gear and idler pulleys as described in Section Removal, inspection and installation of the toothed drive belt gear and tensioner mechanism.

6. Install the intermediate shaft gear as described in Section Removal, inspection and installation of the toothed drive belt gear and tensioner mechanism and install a new toothed drive belt as described in Section Removal, inspection and installation of the toothed drive belt.