Checking, adjusting basic setting of camshafts - RA05001192230X(05-2230)

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Preceding work:

Cylinder head covers removed (01-0500)

Fig 1: Identifying Basic Setting Of Camshafts

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

ROTATION DEGREE

Engine	rotate to 45° before ignition TDC with socket wrench, special tool 001 589 65 09 00 (step 1).
It must be possible to pin the camshafts with the pins (1)	special tool 111 589 03 15 00 (step 2).

ADJUSTING (AT 45° BEFORE TDC)

Guide rails (2)	remove, install (05-3350) .
Chain tensioner	remove, install 05-310 .
Camshafts, beginning at right exhaust camshaft	rotate with wrench in direction of rotation of engine, special tool 111 589 01 01 00 (step 5).
Camshafts, beginning at left exhaust camshaft	rotate into position with wrench, special tool 111 589 03 15 00 (step 6).
Timing chain	fit on.
Camshafts	pin with pins (1), beginning at left exhaust camshaft, special tool 111 589 03 15 00 (steps 6 to 9).

Special tools

Fig 2: Identifying Special Tool (001 589 65 09 00)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Fig 3: Identifying Special Tool (111 589 03 15 00)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Fig 4: Identifying Special Tool (119 589 00 01 00)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

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.

Checking

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 65 09 00.

Fig 5: Identifying No. 1 Cylinder Position
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
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.

Fig 6: Identifying Pins And Special Tool (111 589 03 15 00)
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Adjusting (at 45° before TDC)
Remove, install top slide rail (2a) (05-3350) .
Remove, install chain tensioner (05-3100) .

Fig 7: Identifying Top Slide Rail And Chain Tensioner
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Rotate camshafts in direction of rotation of engine with wrench, special tool 119 589 00 01 00, 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).

Fig 8: Identifying Camshafts Rotation
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
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) 111 589 03 15 00.

Fig 9: Identifying Pin 111 589 03 15 00 And Wrench (3) 119 589 00 01 00
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
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).

Fig 10: Identifying Wrench And Pin
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
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).
Rotate right-hand exhaust camshaft into position with wrench 119 589 00 01 00.
Fit timing chain onto exhaust camshaft timing gear and pin with pin 111 589 03 15 00.

Installation is performed in the reverse order, beginning from step 4.