Toyota Land Cruiser

FJ60, FJ62 and FJ80 1980-1997 of release

Repair and car operation


Toyota Land Cruiser
+ 1. Maintenance instruction
+ 2. Maintenance
- 3. Engines
   + 3.1. Engines 2F and 3F-E
   + 3.2. Verkhneklapanny engine 1FZ-FE
   - 3.3. Dismantle and major maintenance of the engine
      3.3.1. Technical characteristics
      3.3.2. Engine diagnostics by means of the vacuum gage
      3.3.3. Compression check
      3.3.4. Dismantle of the power unit
      3.3.5. Removal and engine installation
      3.3.6. Alternatives of major maintenance
      - 3.3.7. Order of dismantling of the engine
         3.3.7.1. Head of cylinders
         3.3.7.2. Repair of valves
         3.3.7.3. Shatunno-porshnevaya group
         3.3.7.4. Crankshaft
         3.3.7.5. Cleaning and check of the block of cylinders
         3.3.7.6. Honningovaniye of cylinders
         3.3.7.7. Rods and pistons
         3.3.7.8. Radical and shatunny bearings
      + 3.3.8. Engine assembly order
      3.3.9. Engine start-up after repair and a running in
   + 3.4. Engine electric equipment
+ 4. Systems of cooling, heating
+ 5. Fuel and exhaust systems
+ 6. System of decrease in toxicity
+ 7. Transmission
+ 8. Brake system
+ 9. Suspension brackets and steering
+ 10. Body
+ 11. Electric equipment
+ 12. Electroschemes









3.3.7.4. Crankshaft

Dismantle

PERFORMANCE ORDER
Prevention

The crankshaft can be removed only after engine dismantle from the car. Previously remove a flywheel (or a leading disk), a pulley-uspokoitel, a belt (chain), the pallet, a maslopriyemnik, the oil pump, a forward cover and rods with pistons.
1. Previously check axial люфт the crankshaft.
2. Displace the crankshaft towards a back part of the engine, having made the maximum effort, and in this situation establish an indicator scale on a zero.
3. Then push a cranked shaft towards a forward part of the engine and consider indicator indications. The size axial люфта is equal to distance on which the shaft moved. If axial люфт exceeds standard value, check wear of persistent surfaces of cheeks of the crankshaft. If their wear insignificant, люфт has to be corrected by replacement of radical loose leaves with the new.
4. In the absence of a display head люфт it is possible to measure by means of a set щупов.
5. Carefully displace the crankshaft towards a forward part of the engine and measure axial люфт, laying щупы between a cheek of the crankshaft and an end face of the persistent radical bearing.
6. Check existence on covers of oriyentatsionny arrows and markings of number of the cylinder. Usually covers are numbered beginning from a forward part of the engine, available shooters should be turned towards a forward part of the engine. If marking is absent, начерните labels.
7. Release bolts of covers on 1/4 turns at one time in, until then while bolts will not begin to turn away by hand. At assembly bolts should be turned on former places. Keep in mind that on a part of engines bolts are used as pins which also should be turned on former places.
8. Carefully displace covers and remove them together with loose leaves.
9. Carefully remove the crankshaft. Leave loose leaves in pro-points of the block of cylinders and covers. Put covers on the places and tighten bolts by hand.

Check

PERFORMANCE ORDER
1. Wash out a cranked shaft solvent and dry, clean oil channels, clear necks and remove with a file agnails.
2. Check a condition of necks of a shaft, existence of cracks, hollows, задиров. Check a roughness of necks, having rubbed about them a copper coin. If there are traces, necks follows перешлифовать. It is recommended to execute an internal defektoskopiya of the crankshaft.
3. Measure diameter of necks in several places and define a konusnost and ovality.
4. At appreciable damages the crankshaft follows перешлифовать and to replace loose leaves repair.
5. If on necks under epiploons the deep flute from a working edge of an epiploon was formed, there are scratches or other damages, the crankshaft is recommended to replace, or проконсультроваться in car-care center where a neck it is possible to chisel and напрессовать the plug.