BMW 5251 Service Manual page 50

020-1 8
Maintenance
V-8 engine drive belt diagram ( N C belt not shown).
NOTE-
Two types of belt tensioners are used on the V-8 engines.
The tensioner shown in this procedure is for cars built up to
8/97. The later style tensioner is similar.
4
V-8
engine tensioner.
Loosen fasteners(A) to relieve belt tension
-
Remove drive belt.
4
When reinstalling belt, check that it is correctly positioned on
belt pulleys.
With bolts (B and C ) finger tight, pretension adjuster by
turning hex counterclocltwise (arrow) to stop.
Tighten mounting bolts.
NOTE-
On 8/97 and later tensioner, turn hex on tensioner plate to
align lowerplate mounting bolt.