The engine must be cooled during testing, the temperature must not exceed +20°C.
1. Disconnect the battery ground cable.
Warning! This will erase the fault memory and the radio's security code.
2. Unscrew the lower engine shield.
3. Remove the intake manifold.
4. On vehicles with air conditioning, remove the viscous fan.
5. Unscrew the bolt (1).
6. Screw the attachment (1) into place of the unscrewed bolt (OPEL KM-226-A) and indicator (2) (KM-571-B) and slightly press the plunger.
7. Turn the crankshaft clockwise to the TDC position of the 1st cylinder so that the indicator pointer remains at the deepest point for a while. The beginning of the turn should be in the region of 60° to 90° before TDC.
8. The piston of the 1st cylinder is at TDC if both cams of the 1st cylinder are facing upwards on the camshaft drive chain. To check, remove the filler cap and watch the cams.
9. When the crankshaft is rotating, engage 5th gear, release the handbrake and move the car. Or engage the handbrake, set the gearbox to neutral and turn the crankshaft pulley with a socket head by the central bolt.
10. Set the indicator to position "0".
11. Remove the plug (1) from the engine compartment.
12. Turn the crankshaft 2 turns so that you can insert the OPEL-813 rod or other suitable rod (drill) through the hole in the cylinder block into the hole in the flywheel.
Warning! Do not rotate the shaft in the opposite direction, this may result in incorrect indicator readings.
13. The indicator should now show a height of 0.95±0.02 mm for the new camshaft drive chain.
Warning! After 20,000 km, the indicator of the camshaft drive chain should show 0.90±0.02 mm.
14. If the value does not match the required value, adjust the pump.
15. Loosen the bolt (3) without unscrewing it. Loosen the nuts (1 and 2).
Warning! Do not loosen the nuts too much, just 2 or 3 turns, to avoid jamming the camshaft drive chain.
16. Turn the injection pump until the indicator shows the correct value.
17. Tighten the nuts and bolt in sequence 1 to 3 with a torque of 25 Nm.
18. Remove the test rod and recheck the adjustment, turning the crankshaft only in the correct direction.
Installation
1. Remove the test rod and indicator.
[Text was copied from the portal: OpelBook.ru]
2. Install the cylinder block plug.
3. Tighten the central bolt with a new sealing ring to 30 Nm.
4. Install the filler cap.
5. Install the intake manifold.
Cars with air conditioning
6. Screw on the viscous coupling fan.
7. Screw on the lower engine shield.
8. Connect the battery ground cable.
9. Set the time on the clock.
10. Set the radio security code.
11. Start the engine, bleed the injection system if necessary.
12. After a test drive, check the tightness of the central bolt and tighten it if necessary.
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