Engine cylinder head assembly 2.3-I-VR5
- 1 - the upper part of the intake manifold. The upper part of the intake is first attached to the lower part of the intake manifold, and then the manifold assembly is attached to the cylinder head;
- 2 - throttle body;
- 3 - bolt, 10 Nm;
- 4 - cover;
- 5 - cylinder head cover;
- 6 - bracket;
- 7 - a bolt of fastening of a head of the block of cylinders. At installation it is necessary to use new bolts;
- 8 - cylinder head. If the flatness is more than 0.1 mm, it is necessary to regrind the cylinder head. The minimum allowable height of the cylinder head is 139.5 mm;
- 9 - sealing ring. When installing, use a new O-ring lubricated with clean engine oil;
- 10 - sealing ring;
- 11 - Hall sensor;
- 12 - chain tensioner, 40 Nm. The engine may only be cranked with the chain tensioner installed;
- 13 - water pump;
- 14 - sealing ring. If the tightness is broken, a new sealing ring must be used;
- 15 - block of the ignition system;
- 16 - bolt, 25 Nm;
- 17 - drive chain cover. The timing chain cover can only be removed and installed with the cylinder head installed. When installing the drive chain cover, it is necessary to fill the holes in the end face of the cover with liquid sealant VW-AMV18800102;
- 18 - thermostat casing;
- 19 - cylinder head gasket. At installation it is necessary to use a new lining of a head of the block of cylinders;
- 20 - the lower part of the intake manifold;
- 21 - gaskets of the lower part of the intake manifold;
- 22 - valve for switching intake manifold channels;
- 23 - vacuum actuator
The location of the sealant holes in the timing chain cover
The sequence of tightening the cylinder head bolts on the VR5 engine
The operations for removing and installing the cylinder head of the VR5 engine are similar to the operations for removing and installing the cylinder head on a four-cylinder gasoline engine. This subsection only describes the differences for removing and installing the cylinder head on VR5 engines.
Order of execution
1. Remove hinged elements from a head of the block of cylinders and a cover of a head of the block of cylinders.
2. Unscrewing of bolts of fastening of a head of the block of cylinders make in sequence, return to their tightening, see fig. The sequence of tightening the cylinder head bolts on the VR5 engine.
3. Clean the 3 mm holes from the sealant in the end face of the drive chain cover, see fig. The location of the sealant holes in the drive chain cover.
4. Fill the holes in the end face of the timing chain cover with liquid sealant VW-AMV18800102.
Warning: After installing the cylinder head, the sealant holes in the end of the timing chain cover are half closed.
5. Before installation of a laying of a head of the block of cylinders check up, that guide plugs are established in openings 15 and 16 of the block of cylinders, see fig. The sequence of tightening the cylinder head bolts on the VR5 engine.
6. Being careful, establish a head on the block of cylinders. Insert and hand-tighten the cylinder head bolts with washers.
7. In a certain sequence (see fig. The sequence of tightening the cylinder head bolts on the VR5 engine) tighten all bolts to a tightening torque of 30 Nm, then tighten all bolts to a tightening torque of 50 Nm and finally tighten all bolts in two steps, each time by 90°.
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