N01.00-0347-01
Engine 900.9, 904.9, 924.9
A Outlet valve
E Inlet valve
X Flywheel side
The piston is at ignition Top Dead Center (TDC or OT) when the co-running piston is at valve overlap Top Dead Center (TDC or OT). At valve overlap Top Dead Center (TDC or OT) the intake valves (E) and the exhaust valve (A) are open,both rocker arms must be at the same height.
Engine | Piston position | Cylinder / injection order | |||
4 cylinder | Ignition TDC | 1 | 3 | 4 | 2 |
Valve overlap Top Dead Center (OT) | 4 | 2 | 1 | 3 | |
N01.00-0348-01
Engine 902.9, 906.9, 926.9
A Outlet valve
E Inlet valve
X Flywheel side
The piston is at ignition Top Dead Center (TDC or OT) when the co-running piston is at valve overlap Top Dead Center (TDC or OT). At valve overlap Top Dead Center (TDC or OT) the intake valves (E) and the exhaust valve (A) are open,both rocker arms must be at the same height.
Engine | Piston position | Cylinder / injection order | |||||
6 cylinder | Ignition TDC | 1 | 5 | 3 | 6 | 2 | 4 |
Valve overlap Top Dead Center (OT) | 6 | 2 | 4 | 1 | 5 | 3 | |