11 33 050 Removing and installing or replacing all rocker arms (B48, B46)

Special tools required: 

• 11 4 480

Necessary preliminary tasks: 

• Remove INTAKE CAMSHAFT 
• Remove EXHAUST CAMSHAFT .

Already used roller cam followers may only be reused in the same position.

Removal: 

Release roller cam followers (1) on intake side from hydraulic valve clearance compensating elements and remove.

Place all roller cam followers in order in special tool 11 4 480 .

Fig 1: Roller Cam Followers

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Release roller cam followers (1) on exhaust side from hydraulic valve clearance compensating elements and remove.

Place all roller cam followers in order in special tool 11 4 480 .

Fig 2: Roller Cam Followers

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Installation: 

Classification of roller cam follower intake.

The tolerance classes are marked according to the illustration in numbers from 1 to 5.

Standard: Number 3. standard.

Number 2. slow idle.

Number 4. fast idle.

In case of repair: rough idling speed.

Fig 3: Number Mark On Roller Cam Follower Intake

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Repair: 1

Number 1. lower engine speed in idle.

Number 5. higher engine speed in idle.

Install roller cam followers (1) on intake side.

Fig 4: Roller Cam Followers

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Install roller cam followers (1) on exhaust side.

Fig 5: Roller Cam Followers

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