Contents: Removal and installation the…↓ Installation ↓
Removal and installation the camshaft housing
Attention!
- In this engine, the camshafts are located in the camshaft housing. Therefore, it is only permitted to remove the camshaft housing after first removing both timing belts.
- The seating surface of the camshaft housing must not be machined.
For engines with the letter designation BSA
1. Remove the air filter housing.
For engines with the letter designation BUD
1. Unscrew the screws (arrows) and remove the cover from the camshaft bearing housing.
Continuation of the description of works for all vehicles
2. Remove both timing belts.
3. Unscrew the ground cable from the camshaft housing (arrow).
For engines with the letter designation BSA
4. Remove the oil filler neck.
Continuation of the description of works for all vehicles
5. Remove the ignition coils.
6. Remove the wiring box with the wiring harness from the camshaft housing.
7. Remove the cooling system ventilation pipe from the camshaft housing..
8. Disconnect the connector from the camshaft position sensor.
9. Unscrew the fastening bolt of the rear cover of the toothed belt in the area of the right lashing eye for.
10. Loosen and unscrew the camshaft housing mounting screws from the edges to the center, alternating crosswise.
11. Carefully lift the camshaft housing.
Installation
Conditions:
- The pistons should not be at TDC.
- The camshaft timing pulleys are secured with a camshaft locking tool through calibrated holes in the camshaft housing and are protected from turning.
- Any remaining sealant must be removed from the cylinder head and camshaft housing using a standard sealant remover.
- Avoid getting dirt and sealant residue into the cylinder head.
- The seating surfaces must be thoroughly cleaned. There should be no traces of oil left on them.
1. Apply the sealant to the clean seating surface of the camshaft housing in a thin, uniform bundle (see the shaded area in the figure VC 2.057).
Caution! The sealant layer (bead) should not be too thick, otherwise excess sealant may get into the lubrication channels, which will lead to engine damage.
The roller lever must lie correctly on the end of the valve stem (1) and must be secured to the corresponding support (2) with a clamp.
2. Before installing the camshaft housing, screw two spacer screws (M6x70) into the cylinder head.
3. Carefully install the camshaft housing vertically from above onto the spacer bolts and cylinder head mounting pins (arrows).
Caution! Do not allow oil to come into contact with the applied sealant layer.
4. Tighten the new camshaft housing mounting screws evenly in a crisscross pattern, alternating from the center to the edges. In this case, you need to ensure that the camshaft housing does not become warped.
Tightening torque: 10 Nm + tighten by 1/4 turn (90°).
Caution! After installing the camshaft bearing housing, allow the sealant to cure for approximately 30 minutes.
5. Further installation is carried out in the reverse order of removal.
For engines with the letter designation BUD
Tightening torque of the screws (arrows) securing the cover to the camshaft bearing housing: 10 Nm.
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