Gasoline engine DOHC 2.0 l car Opel Omega B

Specifications
engine's type Four-cylinder in-line, water-cooled and two camshafts located at the top of the engine Engine code X20XEV Cylinder diameter 86.0 mm piston stroke...

Compression test
If the engine runs poorly or intermittently, check the ignition system and fuel system. If the cause of poor engine performance could not be found, perform a...

Top dead center (TDC) piston No. 1
Top dead center is the highest point reached by piston #1 during the compression stroke. Piston N1 is located at the front of the engine on the side of the...

Camshaft cover
Removing 1. Disconnect the ventilation hoses from the camshaft cover. 2. Unscrew the bolts and remove the spark plug cover (drawing on the left), disconnect...

Crankshaft pulley
Removing 1. Remove the auxiliary drive belt. 2. Turn the crankshaft so that the mark on the pulley is aligned with the pointer on the timing belt cover. 3....

Timing belt covers
Outer cover Removing 1. Remove the auxiliary drive belt. 2. Remove the wire harness retainer nut. 3. Remove the holder cover. 4. Disconnect the harness holder...

Gas distribution belt
Removing 1. Disconnect the negative battery cable and set the N1 piston to TDC. 2. Remove the crankshaft pulley. 3. Loosen the bolt (1) timing belt tensioner,...

Belt tensioner, sprockets and intermediate pulleys
Camshaft sprockets Removing 1. Remove the timing belt. 2. Stop the camshaft of the sprocket being removed. 3. Unscrew the sprocket bolt and remove the...

Camshaft seals
Replacement 1. Remove the camshaft sprocket. 2. Drill two small holes in the old oil seal, screw in the screws and remove the oil seal. 3. Clean the gland...

Camshafts and tappets
Removing 1. Remove the timing belt. Rotate the crankshaft about 60°backwards before removing the belt. This reduces the likelihood of contact between valves...

Cylinder head
Cylinder head bolt tightening sequence Removing 1. Disconnect the negative battery cable. 2. Drain the coolant, remove the spark plugs and remove the auxiliary...

Oil pan
One piece oil pan Removing 1. Disconnect the negative battery cable. 2. Raise and secure the front of the vehicle. 3. Drain the oil and tighten the drain plug....

Oil pump
Removing 1. Drain the engine oil and remove the oil filter. 2. Remove the timing belt. 3. Remove the rear timing belt cover. 4. Remove the oil pan and oil...

Crankshaft balancing system (engines since 1998)
Removing 1. Remove the oil pan and oil pickup tube. 2. Set the N1 piston to TDC, aligning the timing mark of the pulley with the pointer on the cover. 3....

Flywheel — removal, inspection and installation
Removing Manual Transmission 1. Remove the gearbox and clutch. 2. Stop the flywheel and mark its correct installation location. 3. Unscrew the bolts and remove...

Crankshaft seals — replacement
Front crankshaft oil seal 1. Remove crankshaft sprocket 2. Drill two holes in the gland, screw the screws into them and remove the gland. 3. Thoroughly clean...

Engine and gearbox mounts
Examination 1. Raise and secure the front of the vehicle. 2. Inspect the rubber mounts for wear and damage and replace if necessary. 3. Check that the support...