Marking on camshaft bearing caps - AH05.20-P-6992-04HB
ENGINE 611, 646.8/951/961/962/963/966
Camshaft bearing caps are marked as follows:
On the left camshaft beginning from the front with E1 to E5 (E = intake).
On the right camshaft beginning from the front with A1 to A5 (A = exhaust).
The camshaft bearing caps must be installed in the same position again, otherwise there is a risk of damage to camshafts and the camshaft bearing cover.