L Note: Installing sprockets Inlet side: Odd numbers Exhaust side: Even numbers • The order is ascending from the front (timing end) to the rear. • Install camshafts with the bearing points slightly oiled. • Evenly tighten bearing cap working from the in- side towards the outside. • Install thrust bearing (timing end) last. • Install lower sprocket (1) together with chain and chain guide (2); the pin on the sprocket must en- gage in the groove on the camshaft. • When installed, the marking (triangle) on the sprocket must face upward. • Then install the upper sprocket (3) with chain. • Initially, only tighten sprocket retaining bolts hand-tight. X Tightening torque:
Bearing cap................................................... 9 Nm e Caution: Remove setting device before finally tightening the sprockets, otherwise the camshafts will be dam- aged. • Remove eccentric tensioner. • Firmly tighten sprockets while holding at the hex- agon on the camshaft. X Tightening torque: Sprocket to camshaft.................................. 54 Nm • Check valve clearance once again. • Turn camshafts so that the grooves at the rear ends are positioned vertically with respect to the cylinder head. • The grooves at the front end must face the inside towards the crankshaft. • Fit setting device, BMW No. 11 3 700 , and se- cure to the bearings of the camshaft.
00.21 Only the bucket tappets replaced during the 1000 km (600 miles) inspection can be re-used. 3 2 Installing camshafts • The camshafts are marked to ensure they cannot be confused. e Caution: Camshaft identification. Inlet: Groove after the thrust bearing Exhaust: No groove 1 • The camshaft bearing caps are also identified. LT00021 LT00021 0 11 3 700 LT00019 LT00019 0