The transverse angle of the king pin of 5˚, as well as the camber angle of the wheels of 1˚, are ensured by the manufacture of parts of the front axle. These angles are not adjustable.
Thermal clearances in the valve mechanism are designed to ensure a tight fit of the valve on the seat when the valve drive parts expand during engine operation
When disconnecting the high pressure fuel line from the injector (except for model 51 injectors), hold the injector fitting with a wrench to prevent it from unscrewing and fuel leakage