Attention!
- If the cylinder head has cracks between the valve seats, as well as between the valve seat rings and the threaded holes for the spark plugs, and if the width of these cracks does not exceed 0.3 mm, and the depth does not exceed 4 thread turns in the holes for the spark plugs, then the cylinder head can be used without reducing its service life.
- The cylinder head and camshaft housing are replaced only as an assembly.
List of parts and assemblies with notes on installation work for Figure VC2.177:
1. Camshaft toothed pulley fastening screw 100 Nm.
- when loosening and tightening, use a lever to hold the pulley.
2. Timing pulley of the camshaft.
3. Camshaft oil seal:
- replace with a new one during assembly.
4. Prismatic key.
5. Camshaft housing fastening nut: 23 Nm.
6. Camshaft housing with integrated upper plain bearing caps:
- mating surfaces are not subject to processing;
- support (1) on the side of the poly V-belt pulley;
- observe the sequence of tightening the camshaft support fasteners;
- carefully apply sealant to the lower mating surface and into the sealant groove.
7. Camshaft:
- measure the radial clearance using a Plastigage measuring wire, maximum permissible value: 0.1 mm;
- radial runout: maximum 0.04 mm.
8. Roller lever:
- check the rollers for jamming;
- lubricate the working surface;
- when installing, secure it to the support with a locking bracket.
9. Roller lever support with hydraulic compensator:
- do not swap;
- lubricate the working surface.
10. Valve spring mounting crackers.
11. Valve spring plate.
12. Valve spring.
13. Valve stem seal
- replace with a new one during assembly.
14. Valve guide sleeve
15. Plug:
- install flush;
- to remove, pierce the rubber wall in the middle with a screwdriver and remove the cover.
16. Cylinder head:
- the mating surfaces on the camshaft side are not subject to processing;
- processing of valve seats.
17. Valves:
- cannot be processed, only lapping is allowed.
[The article is posted on the portal: vwmanual.ru]
Visitor comments