REP-TAT-P-1134-25 Replacing valve springs

Removing valve springs

Prepare the special tools 0 494 371 (11 9 006) , 0 494 372 (11 9 007) and 0 494 373 (11 9 008) as shown.

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Position the special tools 0 494 371 (11 9 006) , 0 494 372 (11 9 007) and 0 494 373 (11 9 008) in the direction of arrow in the center on the cylinder head.

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Slide the special tool 0 494 370 (11 9 005) in the direction of arrow over the edge of the special tool 0 494 371 (11 9 006) .

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Lock special tool 0 494 370 (11 9 005) in arrow direction.
Turn special tool 0 494 362 (11 9 000) and the cylinder head by 180°.

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Mount special tool 0 494 367 (11 9 002) .
Align special tool 0 494 374 (11 9 009) in direction of valve axis. Select the corresponding groove using special tool 0 496 143 (11 8 840) .
Press down the valve spring on the upper spring cup with the special tools 0 494 374 (11 9 009) and 0 496 143 (11 8 840) .
The valve spring can be maintained in pressed down installation position with the special tool 0 494 375 (11 9 011) .

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Keep the valve spring pressed down with the special tool 0 496 143 (11 8 840) .
Remove the valve shims (1) from the valve (2) using a magnet.
Relieve load on valve spring.

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Remove the spring cup (1) and the valve spring (2) and position neatly in the special tool 0 495 105 (11 4 480) .

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Install valve springs

Install the valve spring (2) and the spring plate (1).

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Mount special tool 0 494 367 (11 9 002) .
Align special tool 0 494 374 (11 9 009) in direction of valve axis. Select the corresponding groove using special tool 0 496 143 (11 8 840) .
Press down the valve spring on the spring cup at the top with special tools 0 494 374 (11 9 009) and 0 496 143 (11 8 840) .
The valve spring can be maintained in pressed down installation position with the special tool 0 494 375 (11 9 011) .

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Keep the valve spring pressed down with the special tool 0 496 143 (11 8 840) .
Position the valve shims (1) on the valve (2).
Carefully relieve the valve spring.
Turn special tool 0 494 362 (11 9 000) and the cylinder head by 180°.

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Unlock the special tool 0 494 370 (11 9 005) in the direction of the arrow.
Remove the special tool 0 494 371 (11 9 006) .
Turn special tool 0 494 362 (11 9 000) and the cylinder head by 180°.

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