Cylinder head, disassembling and assembling
WARNING: This page is about a different car, the 1999 Volkswagen Jetta, 1998 Volkswagen Jetta, 1997 Volkswagen Jetta, 1996 Volkswagen Passat, and 1996 Volkswagen Jetta. However, it is still accessible from the selected car via links, so may be relevant.
The following list pertains to Fig 1.
- Expanding clip
- Toothed belt guard, upper
- Toothed belt
- Mark running direction before removing
- Check for wear
- Do not kink
Removing and installing:
- Engine code 1Z, see TOOTHED BELT, REMOVING AND INSTALLING (ENGINE CODE AAZ 09.94 and up) .
- Engine code AHU, see Toothed belt, removing and installing (engine codes AAZ UP TO 10.94, 1Z, AHU) .
- 45 Nm (33 ft lb)
- Camshaft sprocket
- Drive off camshaft taper using hammer and drift through toothed belt guard opening
- 10 Nm (7 ft lb)
- Toothed belt guard, rear
- Cylinder head cover
- Cap
- Replace seal if damaged
- Upper sealing washer
- Replace if damaged
- Cup washer
- Cap
- To intake hose
- Retaining clip
- Positive Crankcase Ventilation (PCV) valve
- For crankcase breather
- Gasket
- Replace if damaged
- Cylinder head cover gasket
- Replace if damaged
- Insert projections into holes on cylinder head
- Crankcase breather
- Cylinder head bolt
- Always replace
- Follow instructions for loosening and tightening in proper sequence, see CYLINDER HEAD, INSTALLING
- Mounting clip
- O-ring
- Always replace
- Lower sealing cone
- Injector lines
- 25 Nm (18 ft lb)
- Remove using 3035 injector line wrench
- Always remove fuel lines as an assembly
- Do not bend or alter shape
- Cylinder head
- Check for distortion, see Checking Cylinder Head Distortion
- Installing, see CYLINDER HEAD, INSTALLING
- After replacing, engine coolant must be completely replaced
- Fuel injector
Removing and installing:
- Engine code AAZ, see FUEL INJECTORS, REMOVING AND INSTALLING
- Engine codes 1Z, AHU, see FUEL INJECTORS, REMOVING AND INSTALLING
- Glow plug
Engine code AAZ:
- Tightening torque: 25 Nm (18 ft lb)
- Engine code AAZ checking, see GLOW PLUGS, INSPECTING
Engine codes 1Z, AHU:
- Tightening torque: 15 Nm (11 ft lb)
- Engine codes 1Z, AHU checking, see GLOW PLUGS, CHECKING
- Lifting eye
- Cylinder head gasket
- Always replace
- New metal gasket from 11.93, see Metal cylinder head gasket
- Note marking, see Cylinder Head Gasket Identification
- After replacing, engine coolant must be completely replaced
- 20 Nm (15 ft lb)
- Idler roller
- Engine codes 1Z, AHU
- 25 Nm (18 ft lb)
- Semi-automatic toothed belt tensioning roller
- Engine codes 1Z, AHU: checking, see Semi-automatic toothed belt tensioning roller, checking .
- Eccentric
- Engine codes 1Z, AHU
- For semi-automatic toothed belt tensioning roller
- Tightening torque
- Engine code AAZ: 45 Nm (33 ft lb)
- Engine codes 1Z, AHU: 20 Nm (15 ft lb)