Toyota Corolla

1992-1998 of release

Repair and operation of the car



Toyota Corolla
+ 1. Maintenance instruction
+ 2. Maintenance
- 3. Engines
   - 3.1. Petrol engines
      + 3.1.1. Repair work without dismantle of the engine from the car
      - 3.1.2. Dismantle and capital repairs
         3.1.2.1. Specifications
         3.1.2.2. Diagnostics of the engine by means of a vakuumer
         3.1.2.3. Check of a compression in engine cylinders
         + 3.1.2.4. Dismantle of the power unit - methods and safety measures
         3.1.2.5. Alternatives of capital repairs of the engine
         3.1.2.6. Order of dismantling of the engine
         3.1.2.7. Head of the block of cylinders
         3.1.2.8. Repair of valves
         3.1.2.9. Shatunno-porshnevaya group
         3.1.2.10. Dismantle of the crankshaft
         3.1.2.11. Block of cylinders
         3.1.2.12. Honningovaniye of cylinders
         3.1.2.13. Cranked shaft
         3.1.2.14. Radical and shatunny bearings
         3.1.2.15. Engine assembly order
         3.1.2.16. Piston rings
         3.1.2.17. Installation of a cranked shaft and check of gaps of radical bearings
         3.1.2.18. Back epiploon
         3.1.2.19. Installation of shatunno-piston group
         3.1.2.20. Start-up of the engine after repair and a running in
   + 3.2. Diesel engine
   + 3.3. Electric equipment of the engine
+ 4. Cooling systems, heating
+ 5. Fuel, exhaust systems
+ 6. System of decrease in toxicity
+ 7. Transmissions
+ 8. Coupling and half shafts
+ 9. Brake system
+ 10. Suspension bracket and steering
+ 11. Body
+ 12. Electric equipment



3.1.2.11. Block of cylinders

GENERAL INFORMATION

Prevention

If caps of channels of the cooling system fail to the canal of the block of cylinders, it is impossible to take them, as a rule.


Cleaning

PERFORMANCE ORDER
1. In easy blows of a hammer to sharp part of a core beat out edges of caps of the block of cylinders so that caps were turned in openings.
2. Then get caps from openings, having picked up flat-nose pliers.
3. Remove with the pallet all remains of material of laying from the block of cylinders, being careful not to damage the demountable planes.
4. Uncover radical bearings and get bearings from the block of cylinders and covers. Inscribe number of the cylinder about which the removed radical bearing and also a detail from which it was taken (from a cover of the bearing was installed or from a bed of the block of cylinders), put bearings, separately from each other.
5. Turn out and remove all carving caps of channels of the block of cylinders. Caps cannot almost be taken therefore drill them and anew cut a carving a tap. At assembly of the engine replace all caps.
6. If the engine is strongly polluted, it should be handed over in a workshop of car service for washing with a strong vapor jet, or in a hot chamber.
7. After cleaning of the block of cylinders in a workshop clean in addition all oil channels and openings. Almost in all autoshops on sale there are brushes for a clearing of channels and openings. Wash out internal channels a stream of warm water until water does not become pure, carefully dry the block and oil pro-polished surfaces veretenny that will protect them from corrosion. If there is a compressed air, blow the block and internal channels for drying acceleration.
8. If the block is polluted slightly, it is possible to be limited to washing with warm water with detergent and a rigid brush. Do not feel sorry for time and perform this work carefully. Irrespective of a way of washing very carefully clean oil channels and openings, dry the block and oil the processed surfaces the veretenny.
9. Carving openings should be passed in the block a tap that will provide correctness of indications of the moment of an inhaling at assembly. Passing by a tap will allow to clear carving openings of dirt, traces of corrosion and the remains of sealant, and also to restore the damaged carving.
10. At opportunity blow openings a stream of compressed air for removal of the remains of material from passing of carvings a tap. Now it is a high time to clear carvings of bolts of fastening of a head of the block of cylinders and covers of radical bearings.
11. Again establish covers of radical bearings, tighten bolts by hand.
12. Install new caps in the block, previously having greased them with sealant. Landing of caps requires the special tool, however this operation can be executed with identical quality in blows of a hammer to a mandrel which diameter corresponds to a cap opening. The face head in 1/2 inches with the extender will be suitable for this purpose.
13. Be convinced of correctness of landing of caps, of lack of distortions. Otherwise leaks are possible.
14. Grease caps of oil channels with non-drying sealant and screw them in openings of the block of cylinders. Be convinced of reliability of an inhaling of caps.
15. If assembly of the engine is not made at present, cover the block of cylinders with a polyethylene cover that will protect it from pollution.

Check of technical condition

PERFORMANCE ORDER
1. Before check of a state carefully clear the block of cylinders.
2. Visually check absence on the block of cracks and traces of corrosion. Check a condition of carvings, if necessary restore the stripped thread. It is very recommended to check existence of internal defects in the block of cylinders for what it is necessary to hand over the block in a workshop of car service where there is the corresponding equipment. If the frequent overheat of the engine was observed, or the level of cooling liquid went down owing to its loss, this check should be executed surely. If defects are found, repair the block or replace.
3. Check existence of chips and zadir on internal surfaces of cylinders.
4. Check ovality and conicity of cylinders. Measure the internal diameter of the cylinder in the directions parallel and perependikulyarny engine axes. Ovality of the cylinder is defined as a difference of diameters measured in the directions A and B. Conicity of the cylinder is defined as a difference of diameters, izmenrenny in the directions A and B in the top and lower planes.
5. Ability "to feel" the correct provision of a nutrometr is developed not at once. Therefore carry out measurements slowly, recheck result, be not convinced yet that diameter is measured precisely.
6. After installation of a nutrometr on cylinder walls the micrometer measures length of the exposed nutrometr which is equal to the measured internal diameter.
7. Measure the internal diameter of the cylinder in top (directly under a fillet), in average and in the lower part parallel to an axis of a cranked shaft.
8. Then take measurements at the same levels, but in the direction perpendicular axes of a cranked shaft.
9. Conicity of the cylinder is defined as a difference of diameters in top and in lower the planes. Ovality of the cylinder is defined as a difference of diameters measured in the directions perpendicular and parallel to a crankshaft axis. Compare results of measurement to standard values.
10. If on surfaces of cylinders there are strong teases and scratches, or ovality and conicity of cylinders exceeds the set limits, the block needs to be handed over in a workshop for boring and a honningovaniye. After restoration of the block pistons and rings of the repair sizes will be necessary.
11. By means of the probe and caliber check deformation of the demountable plane of the block of cylinders and a head of cylinders. If the deviation from the plane exceeds norm, the block should be proshlifovat in a workshop of car service.
12. If the condition of cylinders accepted wear of the cylinder and a gap between the cylinder and the piston do not exceed the established norms, boring it is not required. Everything that it is necessary to make – to otkhonningovat cylinders (see subsection 3.1.2.12).