3.2.13.4. Installation of a head of the block of cylinders

THE GENERAL DATA

Identification of a lining of a head of the block of cylinders

And – without cut: engine XUD 9; with cut: engine XUD 7ТЕ,

b – a designation of a thickness

Position of a directing pin of installation of a head of the block of cylinders

1 – a directing pin of installation of a head of the block of cylinders

Sequence of a tightening of bolts of fastening of a head of the block of cylinders and placing of valves

ADM – a cam of the inlet valve, ECH – a cam of the final valve

PERFORMANCE ORDER

1. Clear a surface of connection by means "Decaploc 82". It is not necessary to use abrasive means and sharp tools. 2. Be convinced that the surface of connection has no scratches and traces from blows. 3. Check up planeness of a surface of connection of a head of the block of cylinders with the block of cylinders. In case of need this surface it is possible перешлифовать. 4. By means of the indicator of hour type measure выступание pistons over a surface of the block of cylinders. 5. By means of the indicator of hour type measure installation of the middle of each piston. The maximum admissible difference between two pistons makes 0,12 mm. The greatest measured value defines a thickness of a lining of a head of the block of cylinders which should be used. Linings of a head of the block of cylinders are designated by special cuts. 6. Pick up a thickness of a lining of a head of the block of cylinders. 7. Check up, whether there is a camshaft in the blocked position that the valve of the block of cylinders №1 and №4 have been completely closed (establish a gear pulley of a camshaft and screw in blocking screw). 8. Degrease (clean all traces of greasing) and drain apertures under bolts of a head of the block of cylinders. 9. The engine should be blocked. Tap М12x150 clean a carving in apertures of the block of cylinders of the engine and clear their current of air. 10. Establish directing pin on a surface of connection of the block of cylinders of the engine. 11. Establish a lining of a head of the block of cylinders (only one position). 12. Establish a head of the block of cylinders. 13. Grease bolts of fastening of a head of the block of cylinders (under heads and on a carving) means "Molykote G Rapid", insert new linings a convex surface upwards. Establish bolts of fastening of a head of the block of cylinders. 14. Screw up bolts of a head of the block of cylinders, adhering to following instructions:       – At first screw up according to sequence (fig. Sequence of a tightening of bolts of fastening of a head of the block of cylinders and placing of valves see) the moment of 30 Nanometers;       – Screw up according to sequence the moment of 70 Nanometers;       – Tighten according to sequence on a corner 120 °. 15. If it is necessary, it is necessary to adjust a backlash of valves and to replace a sealing ring of a camshaft. 16. Screw in bolts (2) and (3) tension roller and an engine arm. 17. On the camshaft end establish a gear pulley together with шпонкой and screw up blocking bolt (it should be screwed up a hand). 18. A bolt of fastening of a gear pulley tighten the moment of 35-40 Nanometers. 19. Establish a gear belt of a drive of a camshaft. 20. Establish left bracket engine lifting. 21. Connect an exhaust pipe. 22. In engine XUD 7ТЕ establish an inlet collector and the right holder. 23. Connect hoses of a cooling liquid, fuel, electric connections. Connect on the pump draught of idling with the increased number of turns. 24. Establish a belt сервонасоса the amplifier of steering system (depending on equipment) and pull it. 25. Turn a cranked shaft of the engine and, in case of need, fill up quantity of a cooling liquid to necessary level. 26. Adjust idling with the increased number of turns.

Выступание the piston (mm)	Designation (b) (fig. Identification of a lining of a head of the block of cylinders see)
0,54 – 0,77	2 cuts
0,77 – 0,82	3 cuts