Honda Bmw 5 Service Manual

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...

11 6-46 
/cylinder Head and Valvetrain 
I I Camshafts,  installing, right cylinder  head (M62 engine) 
I 
1 
A: / Camshafts are marked at  rear. Install  camshafts  into cam- 
shaft bearing saddles  of cylinder  heads. 
Intake camshaft  for right cylinder head 
(14) is labelled 
E 1-4. 
Exhaust  camshaft  for right cylinder  head (1-4)  is labelled 
A 1-4. 
4 Rotate  camshafts  so that  recesses in Intake and  exhaust 
camshafts 
polnt upward 30 to 40 above seal~ng surface for 
valve cover  (arrows). 
4...

1 Cvlinder Head and valvetrain1 
Evenly tighten  down  bearing cap nuts  in I? turn steps  start- 
ing at number 
1. 
Tightening torque 
Camshaft bearing cap 14 Nm (10 ft-lb) 
BMW special tool 11 3 430 on  camshaft. 
4 Rotate  camshafts  until marker  bores (arrows) point up- 
wards.   

1 16-48 
/Cylinder Head and Valvetrain 
Cylinders 
1-4 
11 2 445 11 2441 
4 Secure camshafts in TDC position using BMW special  tools: 
Align  camshafts with open-end 
27 mm wrench so BMW 
special tools fit on cylinder  heads without gaps. Secure 
tool using number 4 cylinder  spark plug hole. 
Do not  damage the cylinder  head. If 
necessa& machine 
open-end wrench to  fit. 
Left  side  (cyl. 
5-8) camshafts,  installing (M62 engine) 
4 Camshafts are marked  for location at  rear. Install camshafts...

- - 
Cylinder  Head and valvetrain1 
4 Bearing caps are marked  with a code for location. 
NOTE- 
The  camshaft caps  are stamped  with a code letter - E for 
the intake side  and 
HA for the  exhaust  side. Number code  is 
for  position  on head,  with number 
1 being the front bearing 
cap. 
CA UTIOI\C 
Do  not  mix up  camshaft  bearing caps. 
Install  and evenly  tighten  down bearing  cap nuts  in 
I2 turn 
steps  starting  at number 
1. 
Tightening torque 
Camshaft bearing cap 14 Nrn (10 ft-lb)...

1 16-50 
/Cylinder Head and Valvetrain 
4 Rotate camshafts until marker  bores (insets)  point upwards, 
4 Secure camshafts  in TDC position using BMW special tools: 
Cylinders 5-8 Align  camshafts w~th open-end 27 mm wrench so BMW 
special tools  fit on cylinder  heads without  gaps. Secure 
11 2 242 11 2 446 I tool using number 8 cylinder  spark plug hole. 
CAUTION- 
Do not  damage the cylinder  head. If necessary,  machine 
open-end  wrench to 
fit. 
Timing chains and  tensioners, installing (M62...

- -. 
Cylinder Head and valvetrain1 
Install exhaust camshaft bolts (arrows) finger tight. 
Remove secondary  timing chain tensioner 
loclting tool. 
< Fit secondary sprockets and  chain to camshafts on left cylin- 
der head. Center slots  in sprocltets  to threaded bores  in end 
of  camshafts 
(arrows). 
Insert  exhaust camshaft bolts (arrows) finger tight  in exhaust 
camshaft  on left cylinder  head. 
Remove secondary timing chain tensioner locking tools from 
chain  tensioners.   

ICylinder Head and Valvetrain -. 
Rotate engine  clockwise (arrow) from 45 before TDC to 
TDC position. 
Secure crankshaft  in 
TDC position with BMW special tool 
11 2 300. 
4 Fit sprocket with primary chain to intaite camshaft  on right 
cylinder  head: 
Press timing  chain tensioner  rail against timing chain 
(white  arrow)  to check that fastener  holes are centered  in 
sprocket slots  (black arrows)  when slack is removed from 
timing chain. 
If  necessary, remove sprocket  and reposition. 
Fit...

Cylinder Head and valvetrain 
Fit sensor  gear with  mark (arrow) pointing upwards.  Install 
bolts  and finger tighten. 
4 Attach  BMW special tool 11 7 380 to right cylinder  head in 
place  of upper timing case  cover. 
Install  BMW special tool 
11 3 390  into 11 7 380. 
Using  BMW special tool  00 9 250,  tighten  adjustable ten- 
sioner  screw on 
11 3 390 to  0.7 Nm  (6.3  in-lb). 
- T~ghten camshaft  sprocket bolts in the following  order: 
1. Exhaust camshaft,  left head. 
2.  Exhaust...

11 6-54 
Cylinder Head and Valvetrain 
Replace primary timing  chain tensioner O-ring (arrow)  in 
right cylinder  head. 
- lnstall  right upper  timing cover  to engine: 
Remove old gasket  from right timing  cover. 
Clean  gasket groove  and install new gasket. 
Apply  Three  Bond 
12098sealant to joint  between cylinder 
head and  timing cover. Install remaining timing cover bolts 
finger  tight. 
lnstall  left upper  timing chain cover  to engine: 
Remove  old gasket  from right timing  chain cover....