| Valve clearance (cold): | |
| - inlet | 0.22 mm |
| – graduation | 0.59 mm |
Distribution phases
| engine's type | GLB | GSG/ JLA/ JLB |
| Inlet valve opening to TDC | 21° | 14° |
| Inlet valve closing after BDC | 55° | 46° |
| Exhaust valve opening to BDC | 70° | 65° |
| Closing the exhaust valve after TDC | 22° | 11° |
TDC and BDC are top and bottom dead center respectively.
Drive chain
| Number of links | 46 |
| Length | 438.15 mm |
Camshaft
The camshaft rotates in three bearings.
| Camshaft bearing diameter | 39.662 - 39.682 mm |
| Camshaft end play | 0.062 - 0.193 mm |
| Camshaft thrust washers thickness | 4.457 - 4.508 mm |
| Cam lift, mm: | |
| - inlet valve | 5,985 |
| - Exhaust valve | 5,894 |
| Jaw height, mm: | |
| - inlet valve | 33,198 – 33,274 |
| - Exhaust valve | 33,442 – 33,518 |
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