Valve Stem Seals, Removing And Installing, Cylinder Head Installed: Procedure

-- Remove the plenum chamber cover. Refer to BULKHEAD .

-- Remove the plenum chamber bulkhead. Refer to BULKHEAD .

-- Remove the bolts -arrows-. Remove the right drive axle heat shield.

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-- Disconnect the connector -4- from the Oil Pressure Switch -F1- -3-.

-- Remove the bolts -arrows- and then remove the oil supply line -1- and oil return pipe -2-.

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-- Remove the camshaft housing. Refer to CAMSHAFT HOUSING, REMOVING AND INSTALLING .

-- Remove the spark plugs with the :3122B  .

-- Remove the :T10340  .

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-- Set the piston for the respective cylinder to "bottom dead center (BDC)".

-- Position the :VAS5161A/32-1  on the cylinder head and tighten using the :VAS5161/12  .

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-- Install the :T40012  with seal in the spark plug thread and tighten by hand.

-- Connect the adapter to the compressed air using a commercially available intermediate piece and give steady pressure.

• Minimum pressure: 6 bar (87.02 psi)

-- Insert the :VAS5161/3A  into the guide plate.

-- Loosen the secured valve retainers with a plastic mallet.

-- Install the :VAS5161/6  with the :VAS5161/5  in the guide plate.

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-- Insert the :VAS5161A/32-1  with the :VAS5161A/32-2  into the guide plate.

-- Engage the :VAS5161/2  at the engaging device and press the installation cartridge downward.

-- At the same time, turn the installation cartridge knurled bolt right until points engage in the valve retainers.

-- Move the knurled bolt left and right slightly. This presses the valve retainers apart and captures them in the assembly cartridge.

-- Release the pressure fork.

-- Remove the assembly cartridge.

-- Remove the guide plate and turn it aside.

• The pressurized air hose remains connected.

-- Remove the valve spring and the valve spring retainer.

-- Remove the valve stem seal using the :VAS6770  .

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-- Lightly lubricate the valve stem seal sealing lip -A-.

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-- Carefully press the valve stem seal -A- onto the valve guide using the :3365  .

If the valve keepers were removed from the assembly cartridge, then they must be inserted into the :VAS5161A/32-3  .

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• The large diameter of the valve retainers point upward.

-- Press the cartridge from above onto the insertion device and valve retainers.

-- Install the valve spring and valve spring retainer, valve spring installed position. Refer to Installed Position Of Valve Spring .

-- Fasten the :VAS5161A/32  onto the cylinder head again.

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-- Insert the :VAS5161A/32-1  with the :VAS5161A/32-2  into the guide plate.

-- Press the pressure fork down and pull the knurled bolt up while turning left and right. This inserts the valve retainers.

-- Release the pressure fork with the knurled bolt still raised.

-- Repeat the procedure on each valve.

Assembling 

Assemble in the reverse order of removal. Note the following:

-- Install the oil supply line -1- and the oil return line -2-, and tighten the bolts -arrows-.

-- Connect the connector -4- to the Oil Pressure Switch -F1- -3-.

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-- Install the plenum chamber bulkhead. Refer to BULKHEAD .

-- Install the plenum chamber cover. Refer to BULKHEAD .

-- Install the spark plugs.

-- Install the camshaft housing. Refer to CAMSHAFT HOUSING, REMOVING AND INSTALLING .