S5 Workshop Manual Engine
2) If it is necessary to rotate camshaft
chain wheel, first rotate crankshaft chain
wheel counterclockwise based on timing
mark. After the camshaft chain wheel is
correctly timed, return crankshaft to the
upper stop point.
17) Align timing mark of each chain wheel, and install belt according to the following
sequence.
Crankshaft chain wheel - oil pump chain wheel - idler wheel - exhaust camshaft chain
wheel - intake camshaft chain wheel - tensioning wheel.
Notes:
Make sure that No.1 cylinder position
is located on the upper stop position
(compression stroke).
When aligning timing mark of oil
pump chain wheel, dismantle inspection
bolt of left balance shaft on the left of
cylinder body, and then insert a
screwdriver (diameter: 8 mm; inserting
length: 60 mm or more).
First crankshaft chain wheel