How to Check the Compression Opel Astra H

Remove

1. 1. Open bonnet
2. 2. Prevent injection with TECH II • Detach cover • Remove protective cap • Connect TECH II to the base
3. 3. Remove sheathed glow plugs

Measure

4. 4. Connect compression plotter to cylinder 1 • Carefully screw in KM-649 • Attach compression plotter in conjunction with KM-533-B – To KM-649 – Measuring range 1000 to 4000 kPa 10 to 40 bar)

Note. Note manufacturer's provisions

5. 5. Compression, Check • Start engine for approx. 4 seconds • Detach compression plotter with KM-649 from cylinder 1

Note. Use a second person

Note. Engine speed at least 200 rpm.

6. 6. Compression, Check • Cylinders 2 to 4
7. 7. Compare compression values • Maximum pressure differential 150 kPa (1.5 bar)

Install

8. 8. Install sheathed glow plugs
9. 9. Detach TECH II • Detach TECH II from base • Attach protective cap • Fit cover
10. 10. Close bonnet