1 | Roller-type cam follower |
2 | Compensating element |
3 | Clamp |
P05.00-2048-02
Warning | Risk of injury. Skin or eye injuries may result when handling hot or glowing objects. | Wear protective gloves, protective clothing and safety glasses, if necessary. | |
Caution | 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. | |
Topical note | Notes on avoiding damage through contamination and foreign objects | ||
| Remove/install | ||
1 | Remove camshafts. |
| |
Model 447, 448 with engine 274 | |||
2 | Mark roller-type rocker arm (1) relative to compensating element (2). | Only when re-using the roller cam follower (1) and the compensating elements (2). | |
3 | Remove roller-type rocker arm (1) with compensating element (2). | ||
| Multigrade engine oils (specification 229.5) | ||
When removing several compensating elements (2) make sure that roller-type cam follower (1) with compensating elements (2), which were not replaced, are reinstalled at the previous fitting point. | |||
Installation: Oil roller-type rocker arm (1) and compensating element (2). | |||
4 | Remove clip (3) and remove roller-type rocker arm (1) from compensating element (2). | ||
| Check | ||
5 | Check compensating element (2) for proper operation. | | |
It must not be possible to press together the compensating element (2) by the normal force of the hand and when using a strong force, it should be possible to press it together only very slowly. | |||
Depending on the findings. | |||
| |||
Replace compensating elements (2). | |||
If several compensating elements (2) are defective, | |||
| |||
Check forced oil supply of cylinder head. | |||
6 | Install in the reverse order. | ||
| Check | ||
7 | Check engine oil level, correct if necessary. | ||
| Model 907 with engine 274 | ||
| Multigrade engine oils (specification 229.5) | ||
| |||
Warning | Risk of burn injuries, suffocation and poisoning when working on the exhaust system and the components connected to it. Risk of suffocation and risk of poisoning caused by inhalation of gaseous and solid components of the exhaust. Risk of poisoning caused by skin contact with solid components of the exhaust. | Wear protective clothing and safety glasses. Use the extraction system. Move people out of the hazard area. | |
Warning | Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running. | Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts. | |
8 | Perform engine test run. While doing so, check engine for proper operation and leak tightness. |
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