Cylinder 1 is at the front of the engine. By convention, the front of the engine is where the pulleys are and the rear of the engine is where the clutch is.
I suppose then I need to repeat this protocol on every single shim out there right ? why do we start by no.4 in specific ? excuse my ignorance... just overhauled my vanos unit & i thought it might be a good chance to check valve clearance & whatever else I can tackle on my way to re-assemble
