Honda Bmw 5 Service Manual

Cp-- Camshaft -- Timing Chain 
Secure camshaft sprockets and impulse  wheels: 
Tighten mounting screws 
(A) on exhaust camshaft  impulse 
wheel to  approx. 
5 Nm (44 in-lb). 
Tighten mounting nuts 
(6) on  exhaust  and intake  sprocket 
assemblies  to approx. 
5 Nm (44 in-lb). 
Torque  down mounting  screws (A) and nuts 
(6) to iinal 
specifications. 
Tightening torques  Sprocket assembly 
to camshaft 
initial  torque 
5 Nrn (44 in-lb) 
Sprocket assembly  to camshaft 
M7 Torx screw (A) 20 Nm (I5 it-lb)...

11 7-66 
I Camshaft Timing Chain 
4 install cylinder  head cover: 
Check for  correct seating  of half-moon  seals 
(A) in back  of 
cylinder  head cover. 
Use  a small amount of  Three Bond 
1209 8 or equivalent 
sealant  at corners 
(B) of half-moon  cutouts. Seal  corners 
in  front of cylinder  head at VANOS  control unit. 
Tightening torque 
Cylinder head  cover to cylinder head 
10 Nm (89 in-lb) 
- Remainder  of reassembly is reverse  of removal, noting  the 
following: 
Secure  all coolant hoses,...

Camshaft Timing chain1 
- Disconnect negative cable (-) from battery. 
CAUTION- 
Prior  to disconnecting the  battery, read the battery  discon- 
nection cautions given 
in 001 General  Cautions  and 
Warnings. 
4 Removing top and side engine  covers: 
Press down  on locking pins  (arrows) to  release  locks. Lifl 
intake manifold  cover straight  up to remove. 
Pry  out caps from  side covers. 
Remove  fasteners 
and covers. 
NOTE- 
Some  early models use 
pry out trim caps  and fasteners  to 
hold...

1 17-68 
Camshaft Timing Chain 
4 Remove left  and right side  ignition coils  and spark plugs: 
- Remove positive (+) terminal cable  from left cylinder  head 
cover. 
- Unbolt  lefl and  right side cable ducts  from fuel rail, 
4 Disconnect fuel injector electrical connectors: 
Pry  corner of  wire lock clip  to release connector  from injec- 
tor 
(arrow). 
Repeat  for all injectors. 
Lift off wiring  ducts. 
4 Remove Fasteners (arrow) from lefl and  right cylinder  head 
cover fasteners  and remove...

- 
Camshaft Timing chain1 
4 Remove oil lines  from camshaft supports  (arrows). 
- Remove radiator  cooling fan and  fan shroud.  See 170 Radi- 
ator and  Cooling System. 
NOTE- 
The radiator cooling  fan nut (32 mm  wrench)  has left-hand 
threads. 
- Remove engine drive  belts alternator and AlC compressor. 
See 
020 Maintenance. 
4 Remove vibration damper bolts  (arrows) and remove 
damper. 
4 Mount BMW special  tool 11 2 450 to crankshaft hub while 
aligning damper locator  pin with  hole (arrow)...

I Camshaft Timins Chain 
4 Using special tool 11 2 450,  rotate engine clocltwise to TDC 
with  number one cylinder  cam lobes facing each other (ar- 
rows) 
as  shown. 
4 Lock crankshaft  in TDC position with  BMW special tool 11 3 
200 (arrow). 
- Remove BMW special tool 11 2 450  and remove  hub. 
- Remove upper engine oil pan. See  119 Lubrication. 
- Remove alternator. See 121 Battery, Starter, Alternator. 
- Remove retaining bolt  for oil dipstick tube from  upper timing 
chain cover  on right...

Camshaft Timing chain1 
< Remove Automatic Stability Control (ASC) throttle  body: 
Disconnect electrical harness  from throttle position  sensor. 
Disconnect  ASC actuator  cable (arrow). 
Remove 
3 mounting  fasteners and remove  throttle body. 
4 Disconnect fuel  tank vent valve line and cap off  line (arrow). 
- Drain engine coolant  and remove  hoses from  thermostat 
housing. See 
170 Radiator  and Cooling  System. 
- Remove water  pump and thermostat  housing. See 170 Ra- 
diator  and Cooling...

1 17-72 
Camshaft Timing Chain 
4 Working at right  side cylinder  head loosen Intake camshaft 
sprocket bolts 
(arrows). 
4 Secure left and  right side camshafts  in TDC position: 
Use  BMW special  tool set 
11 2 440. 
- If necessary,  turn camshaft so that special tools  are 
squarely  seated on  cylinder head. 
Working  at left cylinder head  loosen 
intake camshaft 
sprocket bolts 
(arrows). 
CAUTION- 
Counter  hold camshaft with a 27mm open-end  wrench while 
loosening sprocket  bolts. Grind...

1 Camshaft Timing  Chain 
4 Secure right side timing  chain and guide  rails together with a 
plastic wire ties 
(arrow). 
4 Remove lower timing  chain cover bolts (arrows) and cover. 
- Remove wire ties  supporting guide rails. 
- 
Q Remove sprocket from intake camshafts and remove timing 
chain. 
If necessary, remove tensioning rail 
(A), reversing rail (B), 
and guide rail (C) to  remove timing chain.   

I Camshaft Timina Chain 
/ Cylinders 5-8 
Timing chains, installing 
(M62 engine to 911 998) 
4 The procedure  outlined below assumes  that the camshafts 
are  locked  in the TDC  installation  position with special lock- 
ing  tools  as shown earlier. 
4 lnspect timing chain sprocltets and  chain.  Inspect guide rail 
and  tensioner  rail 
(arrows) for grooves  caused by chain  con- 
tact.  Replace  any part  that is worn  or damaged. 
NOTE- 
If any sprocl(ets are being replaced due  to wear,  the...