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