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
      3.3.13. 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

3.3.13. Radical and conrod bearings

GENERAL INFORMATION

Types of wear of radical and conrod bearings

Check

Radical and conrod bearings at capital repairs of the engine are subject to obligatory replacement, however the bearings which were in operation should be checked carefully to restore the general condition of the engine at the time of repair.

Insufficient lubricant because of the wrong assembly, pollution and penetration of foreign particles, frequent overloads of the engine, corrosion, etc. are causes of destruction of bearings of a bent shaft. Irrespective of the reason which caused destruction of bearings it should be eliminated.

Selection of radical bearings

If bearings of standard dimensional groups are installed, then the new bearing is selected according to numbers put on replaced, and also according to numbers on the block of cylinders and the crankshaft.

Places of drawing standard dimensional groups of radical bearings on 4-cylinder engines

Number on the block has to coincide with number on the bearing.

Definition of number of an insert on l V6 3,0 engines

1. Tags 1, 2 and 3

2. Otschetny tag

3. Tags 0, 1 or 2

Number of an insert is determined from the table by numbers of a neck on the block and to number on the crankshaft.

Number on the block of cylinders	1	2	1	3	2	1	3	2	3
Number on the crankshaft	0	0	1	0	1	2	1	2	2
Number of an insert	1	2	2	3	3	3	4	4	5

Definition of number of an insert on l V6 3,4 engines

1. Tags 1, 2 and 3

2. Otschetny tag

3. Tags 0, 1 or 2

Number of an insert is determined from the table by numbers of a neck on the block and to number on the crankshaft.

Number on the block of cylinders	1			2			3
Number on the crankshaft	0	1	2	0	1	2	0	1	2
Number of an insert	1	2	3	3	3	4	2	4	5

Selection of conrod bearings

If bearings of standard dimensional groups are installed, then the new bearing is selected according to numbers put on replaced and on a rod cover.

After selection measure a gap in necks (see subsection 3.3.9.3, subsection 3.3.12.2).