00.21
L
Note:
Only the bucket tappets replaced during the
1000 km (600 miles) inspection can be re-used.
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
•
The camshaft bearing caps are also identified.
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.
X
Tightening torque:
Bearing cap................................................... 9 Nm
•
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.
Installing sprockets
•
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.
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.
11 3 700
LT000190
LT000210
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