Nissan Terrano 2 with 1985 on 1999
1. The maintenance instruction and to maintenance service
2. Car maintenance service
3. Четырехцилиндровыв engines
4. Engines VS
5. All engines
5.1. The general data
5.2. Compression check in engine cylinders
5.3. Dismantle of the power unit - security measures
5.4. The engine - removal and installation
5.5. Engine major repairs - the general data
5.6. Engine restoration - alternatives
5.7. Engine major repairs - a dismantling order
5.8. A head of the block of cylinders - dismantling.
5.9. A head of the block of cylinders-clearings and condition check
5.10. A head of cylinders - assemblage
5.11. Shatunno-piston group-dismantle
5.12. Коленвал - dismantle
5.13. The block of cylinders - clearing
5.14. The block of cylinders - condition check
5.15. Rods and pistons - condition check
5.16. Kolenval - condition check
5.17. Radical and шатунные bearings - check and selection
5.18. Engine-assembly order major repairs
5.19. Piston rings - installation
5.20. Kolenval - installation and check of backlashes of radical bearings
5.21. A back epiploon - installation
5.22. Rods and pistons - installation and check of backlashes in шатунных bearings
5.23. Start-up of the engine after repair and обкатка
6. Systems of cooling, heating, ventilation and air-conditioning
7. Fuel and exhaust systems
8. System of an electric equipment of the engine
9. System of decrease in toxicity of exhaust gases
10. A mechanical transmission
11. Automatic transmissions
12. Coupling карданный a shaft and the back bridge
13. A running gear of cars with the wheel formula 4x4
14. Brake system
15. Suspension brackets and a steering
16. A body and furnish elements
17. Electric equipment system
 







5-15-shatuny-i-porshni-proverka-sostoyaniya.html

5.15. Rods and pistons - condition check

1. Accurately clear pistons of a deposit and cautiously remove rings.
2. Remove a deposit from flutes of piston rings (photo).
3. Wash out pistons and rods solvent, carefully clean drainage apertures in flutes of the piston and an aperture in a rod (photo).
4. If traces of considerable deterioration are absent and if расточка cylinders it is not required, pistons should not be changed. Normal deterioration is shown in the form of traces of uniform vertical development on a rubbing surface of the piston and in the form of small easing of landing top компрессионного rings. Nevertheless, replacement of piston rings at engine major repairs is obligatory.

15.2а Clear flutes of pistons by means of the adaptation...


14.4б Marks of dimensional group of pistons on block V6


5. Carefully check up presence of cracks on a piston skirt, on lugs of a piston finger and on airfields of piston rings.
6. If on the piston are observed сколы and teases it specifies in a frequent overheat of the engine. Careful check of systems of greasing and cooling in this case is required. The burn-out in the piston bottom testifies to work of the engine with wrong installation of the moment of ignition. The reason обгорания the piston bottoms along the edges as a rule is abnormal combustion (detonation). If the specified defects it is necessary to find their reason are found out and to eliminate.
7. Corrosion of the piston in the form of small poles (питтинга) testifies to penetration into the combustion chamber (and also in картер коленвала) a cooling liquid.
8. Measure a backlash between a flute and a new ring (photo). If the backlash exceeds the established limit it is necessary to replace the piston.
9. Check up a backlash between the piston and the cylinder, having measured diameter of the cylinder (see above) and diameter of the piston from the given cylinder (photo). If the backlash exceeds the established limit the block of cylinders is subject расточке, and and rings it is necessary to replace pistons repair.
10. Check up a backlash between a piston finger and a rod head for what shake the piston and a rod in opposite directions. If люфт notable an aperture under a finger it is necessary to develop and establish a new finger.

15.2б... Or an old piston ring


15.3 Aperture for oil tap in a rod


11. Repair of pistons and rods is carried out in car-care centre.
12. Check up presence on rods of cracks and other damages. Remove covers шатунных bearings, get bearings, wipe landing surfaces on a cover and on a rod, check up presence of cracks, scratches and задиров. After check collect a rod, having established into place bearings, tighten nuts by hand.

«The previous page
5.14. The block of cylinders - condition check
The following page»
5.16. Kolenval - condition check