The oil seal is located behind the camshaft drive gear. Tool 2085 is required, or press the oil seal out with a bent lever. You need to remove the front of the car.
Remove all drive belts of various units from the end of the engine.
Crank the engine so that the first cylinder is in the TDC position. Vibration damper and drive gear must be aligned.
Engines with two valves per cylinder
Loosen the drive belt tensioner and remove the drive belt. The belt must be secured in a suitable way so that it does not slip off the crankshaft gear. The belt, however, should not be tied up so that it does not break. The engine must not be turned after this.
Holding the camshaft drive gear in a suitable way (for example, put an old toothed belt on a gear), loosen the pinion bolt. Remove bolt and washer.
Remove the segment key from the camshaft with pliers.
Screw the camshaft gear bolt with washer as far as possible into the end of the camshaft.
Pick up puller 2085, unscrew the inside (A) for two turns (about 3 mm) from the outer part and lock in this position with the fixing screw (IN). The same puller can be used to remove the crankshaft front oil seal.
Lubricate the threaded head of the tool, insert it into the camshaft oil seal and, while pressing on the ratchet, screw the tool into the oil seal.
Loosen knurled screw (IN) on the fixture and screw the inside (A) into the camshaft until the oil seal comes out.
Clamp the fixture in a vise and pull out the stuffing box with pliers.
Engines with five or four valves per cylinder
Exhaust camshaft oil seal
Remove toothed belt.
While holding the shaft drive gear from turning in a suitable way, loosen the bolt in the center.
Mark the drive gear with a felt-tip pen on the outside so that it can be installed in its original position and then remove the gear from the shaft. Using tool 2085, replace the camshaft oil seal in the same way as described for an engine with 2 valves per cylinder.
When installing the gear, pay attention to the previously made mark. While holding the pinion properly, tighten the bolt to 85 Nm.
Inlet camshaft oil seal
Disconnect the Hall sender plug and unscrew the Hall sender housing from the cylinder head.
Unscrew the curtain (hood) hall sensor.
Pick up puller 2085, unscrew the inside (A) for two turns (about 3 mm) from the outer part and lock in this position with the fixing screw (IN).
Lubricate the threaded head of the tool, insert it into the camshaft oil seal and at the same time press the ratchet, screw the tool into the oil seal.
Loosen knurled screw (IN) on the fixture and screw the inside (A) into the camshaft until the oil seal comes out.
Clamp the fixture in a vise and pull out the stuffing box with pliers.
Lubricate the lip of the new oil seal and its outer surface with oil. To install a new oil seal, use a piece of pipe of a suitable diameter. The pipe must be in full contact with the outer surface of the gland around the circumference.
Align the oil seal and drive it flush with the cylinder head. The oil seal should not be completely clogged, otherwise it will block the oil drain hole. You can replace the oil seal in the same way as described for replacing the crankshaft front oil seal.
When attaching the Hall sensor, pay attention to the correct installation of the figured washer. The curtain must also be installed correctly. This is ensured by the presence of a recess in the camshaft.
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