S40/V40
1. General information
2. Operation and maintenance of the car
3. Design and technical characteristics of engines
3.1. General information
3.2. Head of the block of cylinders
3.3. Block of cylinders
3.4. Gas-distributing mechanism
3.5. Krivoshipno-shatunny mechanism
3.5.1. Bent shaft
3.5.2. Rods
3.5.3. Pistons
3.5.4. Piston rings
3.5.5. Piston fingers
3.6. Lubrication system
3.7. Power supply system
3.8. System of production of the fulfilled gases
3.9. Cooling system
4. Repair of the engine
5. Transmission
6. Brake system
7. Forward suspension bracket and steering
8. Back suspension bracket
9. Control system of the Fenix 5.1 engine
10. Electric equipment. Conducting and components
11. Body
12. Schemes of electric equipment
 



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3.5.5. Piston fingers

Key parameters of piston fingers are specified in tab. 3.14.
Landing in a rod. The finger has to enter the plug of the top head of a rod under easy pressing of a thumb of a hand (almost sliding landing).
Landing in the piston. The finger has to enter the piston pressing of a thumb of a hand (landing with a small tightness).

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3.5.4. Piston rings
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3.6. Lubrication system