Tappets and rocker shafts
- Make
- Alfa Romeo
- Model
- 159 Factory Service Manual
- Year
- 2005–2011
- Section
- Timing system › Tappets and rocker shafts
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EngineTappets and rocker shafts
TAPPETS AND ROCKER SHAFTS
TAPPETS
Specifications
Type
Each valve uses a hydraulic tappet operated by a rocker arm, in turn, moved by the camshaft.
The rocker arms are designed to prevent serious damage to the other engine components if the timing belt slips or breaks; in effect, as a result of pre-set fracture lines, the stresses caused through the contact of the valves with the pistons are absorbed.
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