BMW 5251 Service Manual page 87

110-15
Engine Removal and lnstallation
-
Installation is reverse of removal, noting the following:
Replace all gaskets. O-rings and seals.
Use new fuel injector seals
Check that engine drive belts properly engage pulley
grooves.
Inspect O-ring seal between mass air flow sensor and air
filter housing. To facilitate reassembly, coat seal with acid-
free grease.
Change engine oil and filter and check all other fluid levels.
See 020 Maintenance.
Refill and bleed cooling system. See 170 Radiator and
Cooling System.
CAUTION--
When reattaching throttle assembly harness connectoc con-
nector is fuNy tightened when arrows on connector and plug
line up.
Tightening torques
Coolant drain plug to cylinder block
25
Nm
(18
ft-lb)
Engine mount to subframe
(M10)
45
Nm (33 ft-ib)
Exhaust manifold to cylinder head
M6 10
Nm
(89
in-lb)
M7
or
ME 20
Nm
(15
ft-lb)
Intake manifold to cylinder head
M7
15 Nm
( I
1 ft-lb)
ME
22
Nm (16 ft-lb)
Radiator cooling fan to coolant pump
40
Nm
(30
ft-lb)
Radiator drain screw to radiator
2.5
Nm
(22
in-lb)