Remove/install hydraulic valve clearance compensating elements

AR05.00-S-2011EA

Remove/install hydraulic valve clearance compensating elements

24.07.2019

Engine

654.9 in model 447

1

Compensating element

3

Roller-type cam follower

2

Clamp

 Caution

Risk of injury to skin and eyes due to handling of engine oil. Risk of poisoning caused by swallowing engine oil

Wear protective gloves, protective clothing and safety glasses.
Do not fill engine oil into beverage containers.

AS18.00-Z-0001-01A

Topical note

Notes on avoiding damage through contamination and foreign objects

AH00.00-P-5000-01A



Check

1

Check oil pressure.

AR18.00-S-1250EA

 Oil pressure check facilitates the function test of individual compensating elements (1).

 

Remove/install

2

Remove camshaft housing with camshafts.

AR05.20-S-6997EA

3

Mark roller-type rocker arms (3) and compensating elements (1) relative to each other and to respective installation location.

If roller-type rocker arms (3) and compensating elements (1) are reused.

4

Remove roller-type rocker arm (3) together with compensating element (1).



Specified engine oils (service) - Overview

BB00.40-P-0223-02A

 Installation: Lubricate the roller cam follower (3) and compensating elements (1).

 Installation: Observe markings.

5

Manually remove clamps (2) and remove compensating element (1) from roller-type rocker arm (3).



Check

6

Check compensating elements (1) for proper operation.


Only push compensating element (1) together by hand, do not use a steel tool.
Surface of compensating element (1) will otherwise be damaged.

 The compensating element (1) should not allow itself to be pressed together by the normal force of the hand and also only slowly when using a strong force.

If a compensating element (1) is complained about,



replace the compensating element (1).

7

Install in the reverse order.