Toyota 4 Runner/Hilux/Surf

1987-1998 of release

Repair and operation of the car



Toyota 4ranner
+ 1. Maintenance instruction
+ 2. Maintenance
- 3. Engines
   + 3.1. 4-cylinder engines
   + 3.2. V6 3,0 engines of l (1993-1994) and 3,4 l (since 1995)
   - 3.3. Dismantle and capital repairs of the engine
      3.3.1. Specifications
      + 3.3.2. Capital repairs
      3.3.3. Diagnostics of the engine by means of the vacuum gage
      3.3.4. Check of a compression in engine cylinders
      + 3.3.5. Dismantle of the power unit
      + 3.3.6. Head of cylinders
      3.3.7. Valves
      3.3.8. Conrod and piston group
      + 3.3.9. Crankshaft
      3.3.10. Block of cylinders
      3.3.11. Honningovaniye of cylinders
      - 3.3.12. Rods and pistons
         3.3.12.1. Check of a state
         3.3.12.2. Installation and check of gaps in conrod bearings
      3.3.13. Radical and conrod bearings
      3.3.14. Balancer shafts
      3.3.15. Assembly order
      3.3.16. Piston rings
      3.3.17. Launch of the engine after repair and a running in
+ 4. Systems of heating, ventilation
+ 5. Fuel and exhaust systems
+ 6. Transmissions
+ 7. Transmission elements
+ 8. Brake system
+ 9. Suspension bracket and steering
+ 10. Body
+ 11. Electric equipment
+ 12. Electrical circuitries



3.3.12.2. Installation and check of gaps in conrod bearings

GENERAL INFORMATION

Arrangement of joints of piston rings

1. Top compression ring

2. Dilator of an oil scraper ring

3. Lower compression ring

4. Top disk of an oil scraper ring

5. Dredging (are turned to a forward part of the engine)

6. Lower disk of an oil scraper ring

Before installation of pistons assembled with rods the surface of the cylinder has to be absolutely pure, has to be chamfered edges of cylinders, and the bent shaft is installed in the block of cylinders.

PERFORMANCE ORDER
1. Wipe a back surface of a new top connecting rod and lay it in the place in a rod. Make sure that the ledge on an insert came into selection in a rod and lubricant openings (1) coincided. Not to grease an insert. Similarly establish the lower insert in a rod cover.
2. Place joints of piston rings according to the scheme.
3. Oil pistons and rings pure for the engine, squeeze rings adaptation, having left the acting site of the piston.
4. Turn the crankshaft to NMT in the first cylinder, oil cylinder walls for the engine.
5. Orient the piston so that dredging (1) was turned towards a forward part of the engine (2 – a ledge).
6. Carefully enter the lower part of the piston with a rod into the first cylinder against the stop of adaptation in the block of cylinders. Slightly knock on the upper edge of a mandrel for uniform contact with the plane of the block of cylinders.
7. Enter the piston into the cylinder, carefully tapping with the wooden handle of the hammer on the piston bottom. Big effort not to apply.
8. Attract a rod to a neck of the crankshaft and check a gap in the conrod bearing with the help of a piece of caliber (it is specified by an arrow). The procedure of check differs in nothing from the procedure for radical bearings (see subsection 3.3.9.3). Rotation of the crankshaft or the slightest hit of oil on inserts at measurements are not allowed.
9. Tighten nuts of a cover of a rod with the set moment.
10. Determine gap size. If the gap does not meet standard, then be convinced of lack of lubricant and dirt and again check diameter of a neck and correctness of selection of an insert.
11. Carefully remove the caliber remains, grease inserts and a neck of the crankshaft, establish a cover and evenly tighten nuts with the set moment.
12. Repeat these operations for other rods. Check freedom of rotation collected Kalevala.
13. After final installation of pistons with rods check freedom of rotation of the crankshaft.
14. Check an axial side play of a rod (see subsection 3.3.8). Keep in mind that after installation of new details the side play of a rod can be less norm and grinding of rods will be required.
15. Collect and install the engine, being guided by appropriate sections

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