Porshe 911 (997). Manual - part 76

risulti perfetta, durante la stampa venga persa la corrispondenza fra testo e
relativa immagine.
Se tale difetto non viene rilevato vi è il pericolo che i lavori non siano eseguiti
correttamente; ciò può avere come conseguenza lesioni e danneggiamenti.

• 

→ Per questo motivo, dopo la stampa è assolutamente necessario confrontare le stampe con la
rappresentazione sullo schermo. In caso di errore si prega di correggere le stampe, così da
garantire la riproduzione esatta della rappresentazione sullo schermo.

ADVERTENCIA

Al imprimir se corre el riesgo de perder la correcta asignación de las figuras al texto.

Por motivos técnicos, por el momento no se puede descartar que, aun siendo
correcta la imagen que aparezca en la pantalla, al imprimir se pierda la
correlación entre el texto y la figura correspondiente.

• 

Si este error pasara desapercibido, existe el riesgo de que los trabajos no se
ejecuten de forma correcta y, por tanto, se produzcan daños personales y
materiales.

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→ Por ello le rogamos que tras el proceso de impresión compare siempre las copias impresas con
la imagen de la pantalla. En caso de error, corrija las copias impresas de forma que se
correspondan con el contenido de la imagen de la pantalla.

Diagnostic system: reading out fault memory and activating systems

Subsequent work for bearing cover sealing ring

461

- Removing hydraulic valve for camshaft timing
- Installing hydraulic valve for camshaft timing

Tools

Designation

Type

Number

Explanation

relay puller

special tool

9235

Removing hydraulic valve for camshaft timing

Removing hydraulic valve for camshaft timing

ATTENTION

Risk of oil contamination and blocked oil bores

Faulty engine parts, engine damage

• 

→ Absolute cleanliness is essential when working on hydraulic valves.

Note

The rear silencer must be removed and the holder must be detached before the hydraulic valve on
cylinder side 4 - 6 can be removed.

• 

1. Cylinder side 4 - 6 only: Remove rear silencer.

462

Holder for rear silencer

2. Cylinder side 4 - 6 only: Remove holder for rear silencer. Unscrew two M8 x 30 Torx screws on the

intake side and two M8 x 25 screws on the exhaust side and remove the holder.

Removing and installing shield

3. Remove the side shield on the relevant side of the engine. To do this, unscrew the two M6 x 16 Torx

screws -arrows- .

Camshaft timing valve

4. Disconnect cable plug on hydraulic valve -1- by pressing the clip and pulling off the cable

plug.

Diagnostic system: reading out fault memory and activating systems

Removing hydraulic valve for camshaft timing

463

Holder for solenoid hydraulic valves

5. Unscrew two M6 x 20 inner Torx screws -2- at the valve holder and remove the holder along with the

screws -A- .

Pulling out hydraulic valve with relay puller

Note

Handle the hydraulic valve with care; do not turn it at the valve tip or at the safety contact.

• 

A seal against leaks cannot be ensured if there is damage in the area of the retainer plate, therefore
handle the pliers indicated with care.

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6. Carefully pull the hydraulic valve out of the cylinder head using special tool relay puller 9235.

Before using the puller, mask the valve body in fabric tape in order to prevent slippage or damage.

Retainer plate with seal - installation position of valve for camshaft timing and valve lift control

7. Remove retainer plate with integrated seal -1- from the valve.

Note

Handle the hydraulic valve with care; do not turn it at the valve tip or at the safety contact.

• 

Diagnostic system: reading out fault memory and activating systems

Removing hydraulic valve for camshaft timing

464