Subsequent work
1. Turbocharged engine (M48/50): Screw down sheetmetal bracket for turbocharger. To do this, tighten the 2 fastening screws --> Tightening torque: 23 (17 ftlb.) Nm and screw with new nut --> Tightening torque: 30 (22 ftlb.) Nm. --> Sheetmetal bracket for turbocharger see scheme 27
2. Push the cable plug onto the camshaft sensor.
3. Screw down ground connection. --> Tightening torque: 10 (7.5 ftlb.) Nm
4. Secure oil feed line by hand in the camshaft housing with the union nut and then tighten. --> Tightening torque: 35 (26 ftlb.) Nm
5. Install flat-base tappets. > Removing and installing flat-base tappets
6. Install camshafts. > 150523 Installing camshafts - "Installing"
7. Install timing case cover. > 15 33 21 Removing chain case lid - as of MY 2004 (Cayenne TIP, Cayenne MAN) or 15 33 21 Removing chain case lid - as of MY 2003 (Cayenne S TIP, Cayenne S MAN, Cayenne Turbo, Cayenne Turbo S, Cayenne S TIO Titan) .
8. Install cover for camshaft housing. > 159123 Installing cover for camshaft housing - "Installing" .
9. Install intake-air distributor. Refer to 24 46 19 Removing and installing intake-air distributor - as of MY 2003 (Cayenne S TIP, Cayenne S MAN, Cayenne Turbo, Cayenne Turbo S, Cayenne S TIO Titan) .
10. Install engine. Refer to 10 01 19 Removing and installing V8 4.5 l engine - as of MY 2003 (Cayenne S TIP, Cayenne S MAN, Cayenne Turbo, Cayenne Turbo S, Cayenne S TIO Titan) .
| CAUTION | Leaks due to components being at too low a temperature or at different temperatures! If components that are cold or at different temperatures are sealed together by the application of sealant, adhesion problems and leaks can arise due to the build-up of condensation water or component distortion. |
> Components must have reached at least 17°C throughout.
> Components must not be too hot (distortion).
> Spare parts that are stored in the cold or heat (strong sunlight), must be brought to room temperature or the same temperature as other parts before installation.
1 - Camshaft housing
2 - Camshaft sensor fastening screw M6 x 16
3 - Camshaft sensor
4 - Plug
5 - Cheese head bolt M8 x 20
6 - Cheese head bolt M8 x 30
7 - Sealant application on camshaft housing. Make sure that no sealant can fall into the cylinder head. Carefully remove old residual sealing compound.
8 - Camshaft housing fastening screw M8 x 45
9 - Sealant application on spark plug recess. Make sure that no sealant can fall into the cylinder head. Carefully remove old residual sealing compound.
10 - Oil duct sealing ring
Note. Before installing, remove all residual sealing compound and clean sealing surfaces on cylinder head and camshaft housing!
1. Clean sealing surfaces on camshaft housing and cylinder head using suitable means (e. g. acetone and cloth).
Note. The sealant application must not be too thick because otherwise excess sealant can enter the cylinder head! For applying the sealant, there are, amongst other things, two grooves on the front section of the camshaft housing!
2. Replace oil duct sealing ring on cylinder head and apply a thin bead (approximate width 1.5 mm) of liquid sealing compound 000.043.204.58 Dreibond (status 03/2006, for details of currently used sealant, see Spare Parts Catalogue) onto the camshaft housing in accordance with -Illustration-. When doing this, don't forget the sealing surfaces of the spark plug recesses. see scheme 33
A - Sealant application on inverted camshaft housing
B - Sealing ring for oil duct
C - Wipe off projecting residual sealing compound as far as timing case cover
3. Place camshaft housing on cylinder head. Position M8 fastening screws and tighten according to specified tightening sequence --> Tightening sequence for camshaft housing. --> Tightening torque: 23 (17 ftlb.) Nm see scheme 34
4. Tighten hexagon socket head bolts in control box -Arrows- as required --> Tightening torque: 23 (17 ftlb.) Nm (screws are located on the side, on the outside of the chain box, on cylinder row 1 - 4). Wipe off excess silicone as far as timing case. see scheme 35
5. An oil strainer is fitted under the camshaft adjustment valve in the camshaft housing. Check oil strainer and clean in solvent naphtha or replace if necessary. Fit oil strainer into the bore on the camshaft housing -1-. The oil strainer prevents dirt from getting into the camshaft adjustment valve. --> Oil strainer see scheme 36, see scheme 37.
Oil strainer partly inserted in camshaft housing
6. Secure oil line with new sealing ring -2-. To do this, screw down the upper fastening screw -3- on oil line. --> Tightening torque: 10 (7.5 ftlb.) Nm see scheme 38
1. Turbocharged engine (M48/50): Screw down sheetmetal bracket for turbocharger. To do this, tighten the 2 fastening screws --> Tightening torque: 23 (17 ftlb.) Nm and screw with new nut --> Tightening torque: 30 (22 ftlb.) Nm. --> Sheetmetal bracket for turbocharger see scheme 39
2. Push the cable plug onto the camshaft sensor.
3. Screw down ground connection. --> Tightening torque: 10 (7.5 ftlb.) Nm
4. Secure oil feed line by hand in the camshaft housing with the union nut and then tighten. --> Tightening torque: 35 (26 ftlb.) Nm
5. Install flat-base tappets. > Removing and installing flat-base tappets
6. Install camshafts. > 150523 Installing camshafts - "Installing"
7. Install timing case cover. > 15 33 21 Removing chain case lid - as of MY 2004 (Cayenne TIP, Cayenne MAN) or 15 33 21 Removing chain case lid - as of MY 2003 (Cayenne S TIP, Cayenne S MAN, Cayenne Turbo, Cayenne Turbo S, Cayenne S TIO Titan) .
8. Install cover for camshaft housing. > 159123 Installing cover for camshaft housing - "Installing" .
9. Install intake-air distributor. Refer to 24 46 19 Removing and installing intake-air distributor - as of MY 2003 (Cayenne S TIP, Cayenne S MAN, Cayenne Turbo, Cayenne Turbo S, Cayenne S TIO Titan) .
10. Install engine. Refer to 10 01 19 Removing and installing V8 4.5 l engine - as of MY 2003 (Cayenne S TIP, Cayenne S MAN, Cayenne Turbo, Cayenne Turbo S, Cayenne S TIO Titan) .