Remove/Install Valve Springs - AR05.30-P-3021MSA
Engine 256.9 in model 213, 238, 257, 290
Example illustration
Example illustration
| Risk of injury to skin and eyes due to handling of engine oil. Risk of poisoning caused by swallowing engine oil | Wear protective gloves, protective clothing and safety glasses. Do not fill engine oil into beverage containers. |
AS18.00-Z-0001-01A | |
| Risk of injury caused by scraping or cutting body parts on sharp vehicle parts | Always wear protective gloves when working on or near sharp and non-deburred vehicle parts. Deburr repair panels. |
AS00.00-Z-0017-01A | |
| Topical note | Notes on avoiding damage through contamination and foreign objects | AH00.00-P-5000-01A | |
| Remove/install | |||
| 1 | Remove cylinder head (1). | AR01.30-P-5800MSA | |
| 2 | Remove hydraulic valve play compensation elements. | AR05.00-P-2013MSA | |
| 3 | Attach cylinder head (1) to assembly device (01). | Before commissioning, ensure that the counterholders (02) for the The cylinder head (1) will otherwise be damaged. |
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| Fig 2 | |||
| 4 | Attach assembly lever (03) with depressor (04) to sliding piece (05), place depressor (04) on top valve spring retainer (2) vertically, and align sliding piece (05). | Fig 4 | |
| Fig 1 | |||
| Fig 2 | |||
| 5 | Move air suspension bellows of the assembly device (01) with a lever (06) until they stand centrally over the combustion chamber of the respective valves (6). | Ensure that the air suspension bellows of the The valves (6) will otherwise be damaged. |
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| Fig 2 | |||
| 6 | Connect compressed air to assembly device (01) and open compressed air valve. | ||
| Fig 2 | |||
| 7 | Press valve spring (3) together with the assembly lever (03) and remove valve keepers (4) with magnetic pin. | ||
| Fig 4 | |||
| Fig 3 | |||
| 8 | Loosen assembly lever (03) and relieve valve spring (3). | Fig 4 | |
| 9 | Remove top valve spring retainer (2) and valve spring (3). | ||
| Check | |||
| 10 | Check valve spring (3) for damage. | If damage is present, ↓ Replace all valve springs (3). |
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| 11 | Check top valve spring retainer (2) and bottom valve spring retainer (7) for score marks, cracks, and pitting. | If damage is present, ↓ Replace top and bottom valve spring retainer (2, 7). |
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| 12 | Check valve stems for formation of burrs and pitting. | If ridging is available, ↓ Deburr valve stems. If pitting is present, ↓ Install new valves (6). |
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| AR05.30-P-3511MSA | |||
| 13 | Install in the reverse order. |