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. When installing the cover, it is necessary to apply a layer of sealant WV-D454300A3 around the perimeter of the cover into the segment recess;
- 6 - bracket;
- 7 - bolt, 25 Nm;
- 8 - a bolt of fastening of a head of the block of cylinders. When installing, it is necessary to use new bolts and tighten the bolts in a certain sequence in several stages;
- 9 - 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;
- 10 - round sealing ring. When installing, use a new O-ring lubricated with clean engine oil;
- 11 - 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;
- 12 - chain tensioner, 40 Nm. The engine may only be cranked with the chain tensioner installed;
- 13 - sealing ring;
- 14 - water pump;
- 15 - block of the ignition system;
- 16 - thermostat casing;
- 17 - sealing ring. If the tightness is broken, a new sealing ring must be used;
- 18 - cylinder head gasket. At installation it is necessary to use a new lining of a head of the block of cylinders;
- 19 - the lower part of the intake manifold;
- 20 - seal for the upper part of the intake manifold. If damaged, a new seal must be used;
- 21 - bolt, 5 Nm;
- 22 - combined valve;
- 23 - seal for the lower part of the intake manifold. If damaged, a new seal must be used;
- 24 - V-belt tensioning mechanism;
- 25 - bolt, 5 Nm;
- 26 - bracket;
- 27 - vacuum actuator
The sequence of tightening the cylinder head bolts on the VR5 engine
Warning: The removal and installation of the cylinder head of the VR5 engine is similar to the removal and installation of the cylinder head on a four-cylinder gasoline engine. This section only outlines 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. Unscrew the cylinder head bolts in the reverse order to tightening them (see fig. The sequence of tightening the cylinder head bolts on the VR5 engine).
3. clean holes (indicated by arrows) 3 mm in diameter from the sealant at the end of the timing 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 installing the cylinder head gasket, check that holes 15 and 16 (see fig. The sequence of tightening the cylinder head bolts on the VR5 engine) cylinder block guide bushings are installed.
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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