Compression pressure test - AR01.00-P-1200HW
ENGINE 601 in MODEL 124, 201, 202
ENGINE 602 in MODEL 124, 201
ENGINE 603 in MODEL 124, 126, 140
| Removing, installing | |||
|---|---|---|---|
| 1 | Warm engine up to operating temperature | ||
| 2 | Remove injection nozzles (1) | Naturally aspirated engine | ra07016010230x |
| Turbo engine | ra07016026810x | ||
| 3.1 | Remove windscreen washer fluid reservoir | Model 202 | |
| 4 | Connect vacuum pump (05) to stop unit and pressurize with approx. 400 mbar. | Fig 2 | |
| 5 | Crank engine several times with ignition/starter switch for cleaning. The transmission must be shifted into neutral for this step. | ||
| 6 | Screw compression recorder (01) with appropriate connector (03) and flexible connection piece (02) into the prechamber of the cylinder to be tested | Fig 5 | |
| Fig 3 | |||
| Fig 4 | |||
| 7 | Test compression pressure. Crank engine at least 9 revolutions with ignition/starter switch with transmission in neutral and vacuum pump connected. | *BE01.00-P-1001-01A *BE01.00-P-1002-01A |
|
| 8 | Compare measurements obtained with the specified pressures. | *BE01.00-P-1003-01A | |
| Inspecting cylinders for leaks | ra01006010015x |
COMPRESSION PRESSURE
| Number | Designation | Engine 601, 602 except 602.98, 603 with compression recorder 001 589 47 21 00 | Engine 601, 602 except 602.98, 603 with compression recorder 001 589 78 21 00 | |
|---|---|---|---|---|
| BE01.00-P-1001-01A | Compression pressure installation tolerance or value when new | bar | 26...32 | 29...35 |
| BE01.00-P-1002-01A | Compression pressure wear limit or limit value | bar | ≈ 18 | ≈ 18 |
| BE01.00-P-1003-01A | Compression pressure permissible difference between individual cylinders | bar | ≤3 | ≤3 |