2.0L - Cylinder Head, Valvetrain - Engine Code(s): Cjaa: Overview Volkswagen Golf Mk7

Scheme 75

1. Bolt 5 Nm
2. Fuel Rail (High Pressure Reservoir) With the fuel injection lines. Do not change the shape of the fuel injection lines.
3. Bolt 22 Nm
4. Fuel Injector (Piezo Injection Unit) Removing and installing, refer to «FUEL INJECTOR»(ref-480932-S17849540592012061900000).
5. Bolt 5 Nm
6. Sealing Cap
7. Bushing For the fuel rail mounting. Replace if damaged.
8. Nut 10 Nm
9. Tensioning Plate Note the installed position (Scheme 76)
10. Wire Guide
11. Cylinder Head Cover Removing and installing, refer to «CYLINDER HEAD COVER»(ref-481002-S34319164812012061900000).
12. Gasket Replace if damaged or leaking.
13. Bolt 10 Nm Follow the tightening sequence, refer to «CYLINDER HEAD COVER»(ref-481002-S34319164812012061900000).
14. Cap
15. Heat Shield

Scheme 76

CYLINDER HEAD OVERVIEW

Note. Only remove the plastic protectors installed to protect the open valves immediately before fitting the cylinder head. If the cylinder head is going to be replaced, then it is also necessary to replace all the coolant.

Scheme 77

1. Cylinder Head Removing and installing, refer to «CYLINDER HEAD»(ref-481002-S08380201522012061900000) . After replacing replace entire amount of coolant
2. Washer For the cylinder head bolt
3. Bolt Follow the sequence for loosening and tightening, refer to «CYLINDER HEAD»(ref-481002-S08380201522012061900000) . Place the washers -item 2- into the cylinder head before installing.
4. Bolt 25 Nm
5. Lifting Eye
6. Gasket Always replace.
7. Vacuum Pump Removing and installing, refer to «VACUUM PUMP»(ref-481002-S12288255402012061900000) .
8. Bolt 10 Nm
9. Coolant Connection
10. Bolt 10 Nm
11. Gasket Always replace.
12. Bolt 25 Nm
13. Lifting Eye
14. Cylinder Head Gasket Always replace. Observe the identification. Refer to «CYLINDER HEAD GASKET IDENTIFICATION»(ref-480934-S33273454392012061900000) . After replacing, replace the entire amount of coolant.
15. Camshaft Position Sensor -G40
16. Bolt 10 Nm

Scheme 78

Special tools and workshop equipment required

1. Straight Edge 500 mm VAS 6075
2. Feeler Gauge

Max. permissible distortion: 0.1 mm

Note. Remanufactured diesel cylinder heads is not permitted.

Scheme 79

1. Toothed Belt Mark the rotation direction before removing. Check for wear. Do not kink. Removing, installing and tensioning. Refer to «TOOTHED BELT»(ref-481002-S10710672052012061900000)
2. Bolt 120 Nm + an additional 90° (1/4) turn. Always replace. Use the counter support -3415- to loosen and tighten. Do not lubricate or grease the threads or collar. The additional torque angle can occur in several stages.
3. Crankshaft Toothed Belt Gear
4. Nut 20 Nm
5. Idler Roller
6. Nut 20 Nm + an additional 45° (1/8) turn.
7. Belt Tensioner Remove the engine mount bracket in order to remove and install. Refer to «ENGINE MOUNT AND BRACKET»(ref-480934-S40931601332012061900000)
8. Bolt 20 Nm + an additional 45° (1/8) turn.
9. Camshaft Gear
10. Bolt 20 Nm
11. Bolt 100 Nm
12. Hub Use the camshaft gear counter-holder -T10051- to loosen and tighten. To remove, use the puller -T10052-. Removing and installing, refer to «CAMSHAFTS»(ref-481002-S05403984042012061900000)
13. Rear Toothed Belt Guard
14. Bolt 20 Nm
15. Bolt 10 Nm Always replace.
16. Idler Roller
17. Bolt 50 Nm + an additional 90° (1/4) turn. Always replace.
18. Hub Use the camshaft gear counter-holder -T10051- to loosen and tighten. Use the puller -T40064- to remove. Removing and installing, refer to «REMOVAL AND INSTALLATION»(ref-481002-S22603561372012061900000)
19. Nut 95 Nm
20. High Pressure Pump Toothed Belt Gear
21. Bolt 20 Nm + an additional 90° (1/4) turn. Always replace.
22. Coolant Pump Removing and installing, refer to «REMOVAL AND INSTALLATION»(ref-481002-S22603561372012061900000)
23. Bolt 15 Nm
24. Upper Toothed Belt Guard
25. Lower Toothed Belt Guard
26. Center Toothed Belt Guard
27. Bolt 10 Nm Always replace.
28. Bolt 10 Nm + an additional 90° (1/4) turn. Always replace.
29. Vibration Damper Installation is only possible in one position because of the offset holes.
30. Bolt 5 Nm
31. Protective Plate
32. Bolt 40 Nm + an additional 180° (1/2) turn. Always replace. Follow the tightening sequence, refer to «ENGINE MOUNT AND BRACKET»(ref-480934-S40931601332012061900000)
33. Engine Mount Bracket Removing and installing, refer to «ENGINE MOUNT AND BRACKET»(ref-480934-S40931601332012061900000)

VALVETRAIN OVERVIEW

Note. Cylinder heads with cracks between the valve seats can continue to be used without reducing service life, as long as the cracks have a Max. width of 0.5 mm.

Scheme 80

1. Seal Do not lubricate or grease the sealing lip on the seal. Before installing, remove any remaining oil from camshaft journal with a clean cloth. To install, tape over the groove on the camshaft taper. Removing and installing, refer to «CAMSHAFT SEAL»(ref-481002-S00707582202012061900000) .
2. Bolt 10 Nm
3. Nut 10 Nm
4. Bearing Frame Follow the loosening/tightening sequence. Refer to «CAMSHAFTS»(ref-481002-S05403984042012061900000) . Seal using silicone sealantD 176 501 A1.
5. Exhaust Camshaft
6. Intake Camshaft
7. Roller Rocker Lever Mark the installed position. Do not interchange. Check the roller for ease of movement. Lubricate the contact surface.
8. Hydraulic Lash Adjuster Mark the installed position. Lubricate the running surfaces before installing.
9. Valve Do not rework, only lapping is permitted. Mark the installed position for installation later. For the correct valve dimensions, refer to «VALVE DIMENSIONS»(ref-481002-S15801017342012061900000) . Checking the valve guides. Refer to «VALVE GUIDE, CHECKING»(ref-481002-S11265405632012061900000) .
10. Cylinder Head See the note in «CYLINDER HEAD OVERVIEW»(ref-481002-S30974993592012061900000) . Removing and installing, refer to «CYLINDER HEAD»(ref-481002-S08380201522012061900000) .
11. Valve Stem Seal
12. Valve Spring
13. Spring Plate
14. Valve Retainer
15. Sealing Cap Always replace.