Setting crank to TDC

Tiny
REGVEG1989
  • MEMBER
  • 2003 BMW X5
  • 4.4L
  • V8
  • 4WD
  • AUTOMATIC
  • 15,000 MILES
Setting crank to TDC to complete timing chain guides rails etc. Replacement one vanos gear is loose went to rotate crank to set TDC and one cam on 1-4 didn't move set TDC on 5-8 and crank. When am I able to manually rotate cams on 1-4 freely without hitting or to time up with 5-8 compression stroke. Do I rotate clockwise or counter?
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Wednesday, December 4th, 2019 AT 6:44 AM

2 Replies

Tiny
JACOBANDNICKOLAS
  • EXPERT
Hi,

I believe it rotates clockwise. Here are the directions for camshaft timing adjustment for both banks. The first is the left. The attached pictures correlate with the directions.

____________________________________________________

2004 BMW X5 (E53) V8-4.4L (N62)
Adjusting Camshaft Timing on Left Side
Vehicle Engine, Cooling and Exhaust Engine Camshaft, Lifters and Push Rods Adjustments Adjusting Camshaft Timing on Left Side
ADJUSTING CAMSHAFT TIMING ON LEFT SIDE
Adjusting Camshaft Timing On Left Side (N62)
Special Tools Required:
11 9 190
11 9 460
11 9 461
11 9 462
11 9 463

(Cylinder Bank 5 to 8)

The preliminary tasks are described in the section "Checking camshaft timing on left side".

Remove left timing case cover.

Pic 1

Note:
When slackening screws, grip camshafts at hexagon head.

Slacken screws of exhaust and inlet adjustment unit.

Pic 2

Get special tool kit 11 9 460 ready for securing camshafts.

Note:
Special tool 11 9 461 for securing inlet camshaft.
Special tool 11 9 462 for securing exhaust camshaft.
Special tool 11 9 463 (holder with screw).

Pic 3

Place special tool 11 9 461 on inlet camshaft and align inlet camshaft so that special tool 11 9 461 rests without a gap on cylinder head.

Pic 4

Fit special tool 11 9 463, secure screw (1) in thread for oil line and tighten down by hand.

Pic 5

Note:
When tightening down screw (1), grip camshaft at hexagon head.

Tighten down screw (1) of inlet adjustment unit.
Adjustment unit to exhaust or inlet camshaft
M10 x 1. 90 Nm

pic 6

Release screw (1), remove special tools 11 9 463 and 11 9 461 from inlet camshaft.

Pic 7

Place special tool 11 9 462 on exhaust camshaft and align exhaust camshaft so that special tool 11 9 462 rests without a gap on cylinder head.

Pic 8

Fit special tool 11 9 463, secure screw (1 ) in thread for oil line and tighten down by hand.

Pic 9

Note:
When tightening down screw (2), grip camshaft at hexagon head.

Tighten down screw (2) of exhaust adjustment unit.
Adjustment unit to exhaust or inlet camshaft
M10 x 1. 90 Nm

pic 10

Release screw (1), remove special tools 11 9 463 and 11 9 462 from exhaust camshaft.

Pic 11

Remove special tool 11 9 190

Crank engine at central bolt twice in direction of rotation until engine returns to firing TDC position of 1st cylinder.

Secure vibration damper with special tool 11 9 190 in firing TDC position of 1st cylinder.

Pic 12

Place special tool 11 9 461 on inlet camshaft and check timing.

Note:
The timing is correctly adjusted when special tool 11 9 461 rests flat on the cylinder head or protrudes by up to 0.5 mm to the exhaust side.

Remove special tool 11 9 461 from inlet camshaft.

Pic 13

Place special tool 11 9 462 on exhaust camshaft and check timing.

Note: The timing is correctly adjusted when special tool 11 9 462 rests flat on the cylinder head or protrudes by up to 0.5 mm to the exhaust side.

Remove all special tools.

Assemble engine.

________________________________________________

Right bank:

Installation:

Installation of inlet and exhaust adjustment units is described separately from removal.

Pic 14

Important!
Danger of mix-up:

Inlet and exhaust adjustment units are different.

Mixing up the inlet and exhaust adjustment units will cause damage to the engine.

1. Inlet adjustment unit ( 1 ) is marked with EIN and IN.

2. Exhaust adjustment unit ( 2 ) is marked with AUS and EX.

Pic 15

Note:
The exhaust adjustment unit on cylinder bank 1 to 4 has a metal clip ( 3 ) for driving the vacuum pump.

Pic 16

Note:
Position of exhaust adjustment unit ( 2 ) to timing chain can be freely selected.

Pull timing chain up.

Feed exhaust adjustment unit ( 2 ) into timing chain and fit onto inlet camshaft.

Pic 17

Replace screw.

Install screw on exhaust adjustment unit.

Tighten screw without play and then slacken off again by half a turn.

Note:
Position of inlet adjustment unit ( 1 ) to timing chain can be freely selected.

Pull timing chain up.

Feed inlet adjustment unit ( 1 ) into timing chain.

Pic 18

Press tensioner rail ( 3 ) back and fit inlet adjustment unit ( 1 ) onto exhaust camshaft.

Note:
If tensioner rail ( 3 ) cannot be pressed back far enough to enable fitting of inlet adjustment unit ( 1 ):

Slacken off chain tensioner by approx. Three turns

Fit inlet adjustment unit ( 1 ).

Replace and insert screw on inlet adjustment unit ( 1 ).

Tighten down chain tensioner.

Tightening torque of chain tensioner: 65 Nm.

Pic 19

Tighten screw on inlet adjustment unit without play and then slacken off again by a half a turn.

Pic 20

Get special tool kit 11 9 460 ready for securing camshafts.

Note:
Special tool 11 9 461 for securing inlet camshaft.

Special tool 11 9 462 for securing exhaust camshaft.

Special tool 11 9 463 ( holder with screw ).

Pic 21

Place special tool 11 9 461 on inlet camshaft and align inlet camshaft so that special tool 11 9 461 rests without a gap on cylinder head.

Pic 22

Fit special tool 11 9 463, secure screw ( 1 ) in thread for oil line and tighten down by hand.

Pic 23

Important!
Make sure screws of inlet and exhaust adjustment units have been slackened by a half a turn.

Crank engine at central bolt from 45Â before TDC position in direction of rotation to firing TDC position of 1st cylinder.

Secure vibration damper with special tool 11 9 190 in firing TDC position of 1st cylinder.

Pic 24

Note:
When tightening down screw ( 1 ), grip camshaft at hexagon head.

Tighten down screw ( 1 ) of inlet adjustment unit.

Tightening torque of inlet adjustment unit: 80 Nm.

Pic 25

Release screw ( 1 ) and remove special tools 11 9 463 / 11 9 461 from inlet camshaft.

Pic 26

Place special tool 11 9 462 on exhaust camshaft and align exhaust camshaft so that special tool 11 9 462 rests without a gap on cylinder head.

Pic 27

Fit special tool 11 9 463, secure screw ( 1 ) in thread for oil line and tighten down by hand.

Pic 28

Note:
When tightening down screw ( 2 ), grip camshaft at hexagon head.

Tighten down screw ( 2 ) of exhaust adjustment unit.

Tightening torque of exhaust adjustment unit: 80 Nm.

Pic 29

Release screw ( 1 ) and remove special tools 11 9 463 / 11 9 462 from exhaust camshaft.

Pic 30

Remove special tool 11 9 190.

Crank engine at central bolt twice in direction of rotation until engine returns to firing TDC position of 1st cylinder.

Secure vibration damper with special tool 11 9 190 in firing TDC position of 1st cylinder.

Pic 31

Place special tool 11 9 461 on inlet camshaft and check timing.

Note:
The timing is correctly adjusted when special tool 11 9 461 rests flat on the cylinder head or protrudes by up to 0.5 mm to the exhaust side.

Pic 32

Place special tool 11 9 462 on exhaust camshaft and check timing.

Note:
The timing is correctly adjusted when special tool 11 9 462 rests flat on the cylinder head or protrudes by up to 0.5 mm to the exhaust side.

Remove all special tools.

Pic 33

Important!
Screw ( 1 ) is a special screw and must be replaced with a normal M8 screw.

Clip oil line ( 3 ) into retainers ( 2 ).

Insert screw ( 1 ) and tighten down.

Assemble engine.

_____________________________________________________

Let me know if this helps.

Take care,
Joe
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Wednesday, December 4th, 2019 AT 8:14 PM
Tiny
REGVEG1989
  • MEMBER
  • 2003 BMW X5
  • 4.4L
  • V8
  • 4WD
  • AUTOMATIC
  • 15,000 MILES
Thank you for the very detailed reply will be more then helpful but the one thing I am trying to figure out at the moment 5-8 cams are of crank can be put to TDC, but is 180 degree of actual TDC as bank 1-4 needed the crank 180 deg to get to TDC. They were just of when I stopped turning the crank and then realized 5-8 didn’t move properly. So are way of TDC with the crank at TDC on or of a compression stroke can I rotate 5-8 cam as much as I need without interference or I need to make sure I am of compression stroke? Or do I get my 1-4 at TDC and lock down then rotate cam to move 5-8? As the timing chain slipped of broken guides and won’t move one cam anyway as the vanos unit has a loose bolt.
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Thursday, December 5th, 2019 AT 12:24 PM (Merged)

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