Crankshaft Oil Seal, Replacing (M62 And M62 Tu Engines) - BMW 5251 Service Manual

Camshaft Timing chain]
4
Coat new seal with oil and position in timing chain cover. Use
BMW special tool 11 3 280 and crankshaft center bolt to draw
seal in flush with timing case cover.
-
Align vibration damper assembly with keyway and tap into
place. Insert new center bolt with washer.
CA U T I O G
Inspect woodruff key for damage before installing hub
assembly.
-
Install crankshaft holding tool malting sure tool locks into
place in openings in damper assembly. While counterholding
cranltshaft, tighten crankshaft center bolt.
-
Attach special tools 11 8 20011 1 8 190 to damper assembly.
Counterhold damper with 11 8 190 while tightening center
bolt.
Tightening
torque
Vibration damper hub
to
crankshaft
410
Nm
(302
it-ib)
-
Installation is reverse of removal noting the following:
Install drive belts. See 020 Maintenance.
Install cooling fan. See 170 Radiator and Cooling Sys-
tem.
Crankshaft oil seal, replacing
(M62 and M62 TU engines)
-
Disconnect negative (-) cable from battery
C A U T I O G
Disconnecting the battery may erase fault code(s) storedin
control module memory. Check for fault codes using spe-
cial BMW diagnostic equipment.
*
Prior to disconnecting the battery, read the battery dis-
connection cautions in 001 General cautions and
warnings.
-
Remove splash guard from beneath engine
-
Remove engine cooling fan assembly. See 170 Radiator
and Cooling System.
NOTE
-
Cooling fan nut (32 mm wrench) has left-hand threads.
-
Remove drive belts. See 020 Maintenance.
NOTE-
Marlc direction of belt rotation if reusing belt.