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
         3.3.6.1. Dismantling of a head of cylinders
         3.3.6.2. Cleaning and check of a head of cylinders
         3.3.6.3. Assembly
      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



3.3.6. Head of cylinders

3.3.6.1. Dismantling of a head of cylinders

GENERAL INFORMATION

Prevention

Acquisition of a new head of the block, than dismantling, check and repair of the head which was in operation is represented to more expedient.


Sorting of details of the valvate mechanism

The removed details should be stored in an order of their installation.

For dismantling of a head of the block of cylinders it is necessary to remove valves and the accompanying details. At the description it is supposed that cam-shafts and pushers are already removed (see subsection 3.1.7 or subsection 3.2.10).

PERFORMANCE ORDER
1. Squeeze a spring of the first valve by means of suitable adaptation (a photo at the left) and remove crackers (a photo on the right). Carefully release a valve spring, remove a plate springs, a spring and a basic washer (if is available).

Prevention

At compression of springs do not scratch or do not damage internal openings under pushers.


2. Get the valve and remove an oil scraper cap.
3. Repeat the same actions for other valves.

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