Honda Bmw 5 Service Manual

Cylinder Head Removal and Installation / 
4 Remove  top engine cover by releasing quick release fasten- 
ers  (arrows)  by pressing  down. 
NOTE- 
Earlier models  may have  an engine  cover with pry off caps 
and  fasteners 
In place  of quick  release fasteners. 
4 Remove left  and right interior ventilation ducts  (left side 
shown): 
- Release locking  tabs (A) or locking strap (early models, not 
shown). 
Release spring  lock (B). 
* Rotate duct inward  (arrow) to remove. 
Disconnect electrical...

Cylinder Head Removal and Installation 
Pry out ignition coil  cover trim caps, 
covers  from lefl and  right sides.  remove fasteners 
and 
< Disconnect throttle cables from throttle  shafl (A) and remove 
cables from  support bracket 
(B). 
< Disconnect cable  from jump start post (arrow) on left cylinder 
head  cover.   

- .- 
.. Cylinder Head Removal  and Installation I - 
< Disconnect  the following electrical harness connectors: 
Knock sensors 
(A). 
Thermostat (6). 
Throttle position sensor  and idle valve (C). 
Camshaft position sensor (D). 
Ignition  coils (E). 
< Remove mounting  nuts (arrows) from wiring  harness  ducts. 
4 Release fuel injector connectors by releasing spring clip 
(arrow) on each injector. 
Lift  up and remove electrical ducts and  set to one side   

1 13-60 
Cylinder Head Removal and  Installation 
Label  and disconnect  fuel  lines from fuel rail by pressing lock- 
ing  sleeves 
(arrows) in to  release lines. 
NOTE- 
BMW uses  three  styles  of fuel line connections; a single  use 
clamp;  a locking  fitting that uses  special tool 
16 1 050 to re- 
lease;  and a quick  release  sleeve 
(arrow) that disconnects 
the line  when depressed. 
CAUTION- 
Fuel  may be expelled  under pressure.  Do not  smoke  or 
work near  heaters or other fire hazards....

11 3-61 
Cylinder Head Removal and installation I 
Remove intake  manifold fasteners (A). 
Carefully lift  intake manifold  off engine while checking that  all 
hoses  and harnesses  have been disconnected. 
Left cylinder head,  removing, M62 engine 
- Remove intake manifold  as described earlier 
- Remove  left side exhaust manifold. See 180 Exhaust Sys- 
tem. 
- Drain engine coolant,  then remove  viscous clutch cooling 
fan.  See 
170 Radiator and Cooling System. 
WARNING - 
Use extreme caution when...

. .- -- 
[Cylinder ~ead Removal and Installation 
4 Remove  cylinder head  cover fasteners  (arrows) and remove 
covers  from left and right cylinder  heads. 
4 Remove oil distribution tubes  from camshaft bearing  caps 
from left and right cylinder  heads. 
4 Using crankshaft center bolt, turn crankshaft  clockwise until 
number one cylinder (passenger  side front cylinder) is  in 
TDC overlap position  (arrow). 
NO JE - 
Number one cylinder  is at valve  overlap  when both the intake 
and  exhaust...

.- -- 
Cylinder Head Removal  and Installation I 
4 Rotate crankshaft vibration  damper  to TDC position. Right 
head  camshaft  lobes for number one cylinder should  be in 
position shown  (arrows). 
Working  at right cylinder  head (passengers side) loosen  re- 
maining 
sprocltet fasteners  (arrows) on both intake and  ex- 
haust camshafts approximately 
/? turn. 
4 Loosen  and remove  primary  timing chain tensioner  (arrow) 
from  upper  timing  chain cover  on right head.   

1 13-64 
Cylinder Head Removal and Installation 
< Remove  upper timing  chain cover fasteners (A) and cover 
from  left cylinder  head. 
4 Remove fasteners  from intake camshaft sprocket (arrows) 
on left cylinder  head. 
- Remove  primary timing chain  sprocket and suspend timing 
chain using  mechanics wire  to prevent chain  from dropping 
into  lower housing. 
Turn  crankshaft counterclockwise  until 
45 mark  on crank- 
shaft  is aligned  with boss  on front timing chain cover 
(arrow).   

1 13-65 
Cylinder Head Removal and  Installation / 
Loosen chain rail set screw  (arrow) 3 full 
move). 
NOTE- 
Allen  screw  secures  crankcase  vent tube 
4 Loosen  and  turns 
(do not re- 
in cylinder  head. 
remove chain guide rail fasteners  (arrow). 
Slide oil separator 
(A) out  of cranltcase vent connecting 
bracket  (arrows). 
CAUTIOI\C 
When removing  the cylinder  head carefully  press oil separa- 
tor  outwards. 
Loosen cylinder  head bolts in sequence 
1-10 as shown  (ar- 
rows)  and...

. .- -- 
I Cylinder Head Removal and  Installation 
- Evaluate cylinder head  as described  in 116 Cylinder head 
and  valvetrain. 
Left  cylinder head, installing, M62 engine 
- Clean cylinder head and  block sealing  surfaces  of gasket 
debris, making sure  no debris drops into coolant  or oil  pas- 
sages. 
- Clean cylinder head bolt holes and check condition  of 
threads. 
< Check  cylinder head locator  sleeves (arrows)  for damage. 
If  the  cylinder  head has been  machined,  a special 
0.3 mm...