Checking Camshaft Basic Setting

Preparation
- Cylinder head covers removed. Service and Repair

Overview





Checking
- Rotate engine to 45° before ignition TDC with socket wrench, special toot 001 589 65 09 00, refer to step 1 below.
- It must be possible to pin the camshafts with the pins (1) special tool 111 589 03 15 00, refer to step 2 below.

Adjusting (At 45° Before TDC)
- Remove guide rails (2), install. Service and Repair
- Remove chain tensioner, install. Service and Repair
- Rotate camshafts, beginning at right exhaust camshaft with wrench, special tool 111 589 01 01 00, in direction of engine rotation, refer to Step 5 below.
- Rotate camshafts, beginning at left exhaust camshaft into position with wrench, special tool 111 589 03 16 00, refer to step 6 below.
- Fit timing chain on.
- Pin camshafts with pins, special tool 111 569 03 15 00 (1), beginning at left exhaust camshaft, refer to steps 6 to 9 below.


NOTE:
- The 45° before TDC marking on the vibration damper is an assembly marking.
- The camshafts can be rotated in this position with the wrench 119 589 00 01 00 without the valves coming into contact with the piston.

Procedures





Checking
1. Position engine to 45° before ignition TDC at No. 1 cylinder by cranking engine at crankshaft in direction of rotation of engine using special tool 001 589 66 09 00.





2. It must be possible to pin all 4 camshafts with the pins (1), special tool 111 589 03 15 00, through the 6.5 mm dia. holes in the first camshaft bearing caps.





Adjusting (At 45° Before TDC)
3. Remove, install top slide rail. Service and Repair
4. Remove, install chain tensioner. Service and Repair





5. Rotate camshafts in direction of rotation of engine with wrench, special tool 119 589 00 0100, beginning at right exhaust camshaft (1).
To make it possible to start the adjustment at the left-hand exhaust camshaft (4), the slack section (arrows) of the timing chain (at chain tensioner) must be transferred by rotating the camshafts (1, 2. and 3).

Part 1 Of 2:

Part 2 Of 2:

6. Rotate left-hand exhaust camshaft into position with wrench (3) 119 589 00 01 00.
Fit timing chain onto exhaust camshaft timing gear and pin with pin (1) 111 569 03 15 00.
7. Rotate left-hand inlet camshaft into position with wrench (3).
Fit timing chain onto inlet camshaft timing gear and pin with pin (1).
Camshafts in "retarded' position (arrow).
8. Rotate right-hand inlet camshaft into position with wrench 119 589 00 01 00.
Fit timing chain onto inlet camshaft timing gear and pin with pin 111 589 03 15 00.
Camshafts in "retarded" position (arrow).
9. Rotate right-hand exhaust camshaft into position with wrench 119 589 00 01 00.
Fit timing chain onto Exhaust camshaft timing gear and Win with pin 111 589 03 16 00.
10. Installation is performed in the reverse order, beginning from step 4.