BMW 5251 Service Manual page 221

Cylinder Head and
valvetrain1
While counter holding camshaft, remove exhaust camshaft
sprocket bolts (arrows) from left cylinder head. Remove
sprocltets with chain.
<
While counter holding camshaft, remove exhaust camshaft
sprocket bolts (arrows) from right cylinder head. Remove
sprocltets with chain.
4
Use BMW special tool 11 3 430 to rotate camshaft into disas-
sembly position.
4
Loosen camshaft bearing caps nuts in correct sequence
(1-10) (left cylinder head shown).
NOTE
-
Keep camshaft bearing caps in order. Used caps must not be
interchanged.
-
Remove exhaust camshaft by repeating process.
0
Remove camshafts from cylinder head.
-
Repeat camshaft removal process for right cylinder head.