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


3.3.1. Specifications

GENERAL INFORMATION

4-cylinder engines 2,4 and 2,7 of l

All sizes and gaps are specified in mm.

Compression (at 250 rpm):
  – standard
11,7 kgfs/cm2
  – limit
8,4 kgfs/cm2
  – the greatest distinction of a compression in cylinders
1,9 kgfs/cm2
Oil pressure:
  – idling (600 rpm)
not less than 0,25 kgfs/cm2
  – at 3000 rpm
2,1 – 4,3 kgfs/cm2
Block of cylinders
Maximum permissible deformation of the demountable plane
0,05 mm
Internal diameter of the cylinder:
  – standard
94,900 – 95,003
  – limit
95,06
  – conicity and ovality
no more than 0,025
Head of cylinders and valves
Maximum permissible deformation of the demountable plane
0,05 mm
Valve head corbel width (standard):
  – inlet
1,0
  – final
1,0
Valve head corbel width (limit):
  – inlet
0,5
  – final
0,5
Diameter of a core:
  – inlet
5,970 – 5,985
  – final
5,965 – 5,980
Gap between a core of the valve and the directing plug
  – standard:
     • inlet
0,025 – 0,060
     • final
0,030 – 0,065
  – limit:
     • inlet
0,08
     • inlet
0,10
Valve spring length
  – in a free state
43,94 – 45,06
  – in established
37,5
Crankshaft and rods
Conrod necks:
  – diameter
52,987 – 53,000
  – a gap in conrod bearings
0,030 – 0,055
Axial side play of rods:
  – standard
0,160 – 0,312
  – limit
0,35
Radical necks 1,2,4 and 5:
  – diameter
59,987 – 60,000
  – a gap in bearings
0,024 – 0,049
Neck 3
  – diameter
59,981 – 59,994
  – gap
0,030 – 0,055
Axial side play of the crankshaft:
  – standard
0,020 – 0,22
  – limit
0,30
Ovality and conicity
no more than 0,005
Pistons and rings
Diameter of the piston (standard):
  – 2,4 l
94,923 – 94,933
  – 2,7 l
94,933 – 94,943
Gap between the piston and the cylinder:
  – 2,4 l
0,057 – 0,080
  – 2,7 l
0,047 – 0,70
Gap in a joint of piston rings:
  – N1 ring (the top compression):
     • standard
0,300 – 0,400
     • limit
0,40
  – N2 ring (the lower compression):
     • standard with a tag of "T"
0,400 – 0,500
     • "N", standard with a tag
0,400 – 0,500
     • limit
0,50
Gap between a ring and a flute in the piston:
  – N1 ring (the top compression):
     • standard
0,020 – 0,070
     • limit
0,070
  – N2 ring (the lower compression):
     • standard
0,030 – 0,070
     • limit
0,070
Balancer shafts
Axial side play:
  – standard
0,07 – 0,13
  – limit
0,2

Inhaling moments (N. of m)*

Oil nozzles of the crankshaft
15
Bolts of a cover of the balancer shaft
16
Bolt of a gear wheel of the balancer shaft
22
Nut of a natyazhitel of the balancer shaft
16
Bolts of an uspokoitel of N3
16
Bolts of an uspokoitel of N2
25
Bolts of covers of radical bearings:
  – 1st stage
36
  – 2nd stage
to tighten on 90 °
Nuts of covers of conrod bearings:
  – 1st stage
40
  – 2nd stage
to tighten on 90 °

* see also subsection 3.1.1.

6-cylinder engines with a volume of 3,0 and 3,4 l

In brackets 3,4 l given for the engine are specified, all sizes and gaps are specified in mm.

Compression (at 250 rpm)
  – standard
11,2 kgfs/cm2 (14)
  – limit
9,2 kgfs/cm2 (9,5)
Oil pressure (on the heated-up engine):
  – at 3000 rpm
2,3 – 4,4 kgfs/cm2 (2,3 – 4,4)
  – idling
not less than 0,25 kgfs/cm2
(not less than 0,25)
Head of cylinders and valves
Maximum permissible deformation of the demountable plane
0,10 (0,10)
Valvate mechanism
Valve head corbel width:
  – standard
1,5
  – limit
1,3
Diameter of a core:
  – inlet
7,970 – 7,985 (5,970 – 5,985)
  – final
7,965 – 7,980 (5,965 – 5,980)
Gap between a core of the valve and the directing plug:
  – inlet:
     • standard
0,025 – 0,060 (0,025 – 0,060)
     • limit
0,08 (0,08)
  – final:
     • standard
0,030 – 0,065 (0,030 – 0,065)
     • limit
0,10 (0,10)
Valve spring:
  – a deviation from a vertical
1,23 (2,0)
  – length in a free state
47,01 (44,78)
  – length in the established state
40,0 (33,3)
Pushers:
Outer diameter
37,922 – 37,932
(30,966 – 30,976)
Gap in pushers
37,960 – 37,975
(31,000 – 31,018)
  – standard
0,028 – 0,053
(0,024 – 0,052)
  – limit
0,10 (0,08)
Crankshaft and rods
Conrod necks:
  – diameter
54,987 – 55,000
(54,987 – 55,000)
  – ovality and conicity
0,02 (0,02)
Gap in conrod bearings:
  – standard
0,024 – 0,053 (0,020 – 0,038)
  – limit
0,08 (0,08)
Axial side play of rods:
  – standard
0,15 – 0,33 (0,150 – 0,330)
  – limit
0,38 (0,38)
Radical necks:
  – diameter
63,996 – 64,000
(63,985 – 64,000)
  – ovality and conicity
0,02 (0,02)
Gap in radical bearings:
  – standard
0,024 – 0,042
(in a neck of N1 0,020 - 0,038, in other necks 0,024 – 0,042)
  – limit, 0,08
(in N1 0,08 neck, in other necks 0,08)
Axial side play of the crankshaft:
  – standard
2,44 – 2,49 (0,020 – 0,220)
  – limit
0,30 (0,30)
Thickness of a persistent washer
2,44 – 2,49 (to 0,038)
Block of cylinders
Deformation of the demountable plane
0,05 (0,05)
Internal diameter of the cylinder (standard):
  – group 1
87,500 – 87,510
(93,500 – 93,510)
  – group 2
87,511 – 87,520
(93,510 – 93,520)
  – group 3
87,521 – 87,530
(93,520 – 93,530)
Pistons and rings
Diameter of the piston (standard):
  – group 1
87,360 – 87,370
(93,356 – 93,366)
  – group 2
87,370 – 87,380
(93,367 – 93,376)
  – group 3
87,381 – 87,390
(93,377 – 93,386)
Gap between the piston and the cylinder:
  – standard
0,13 – 0,15 (0,134 – 0,154)
  – limit
0,17 (0,174)
Gap in a joint of piston rings:
  – N1 ring (the top compression):
     • standard
0,23 – 0,33 (0,30 – 0,50)
     • limit
0,83 (1,10)
  – N2 ring (the lower compression):
     • standard
0,38 – 0,48 (0,40 – 0,60)
     • limit
0,90 (1,20)
  – oil scraper ring:
     • standard
0,15 – 0,40 (0,15 – 0,55)
     • limit
0,90 (1,20)
Gap between a ring and a flute in the piston:
  – engines of 3,0 l till 1993:
     • standard
0,03 – 0,07
     • limit
0,20
  – engines of 3,0 l of 1994:
     • N1 ring (the top compression)
0,02 – 0,06
     • N2 ring (the lower compression)
0,03 – 0,07
     • limit (for both rings)
0,20
  – engines of 3,4 l:
     • N1 ring (the top compression)
0,04 – 0,08
     • N2 ring (the lower compression)
0,03 – 0,07
     • limit (for both rings)
0,20

Inhaling moments (N. of m)*

Bolts of covers of radical bearings:
  – 1st stage
54 (54)
  – 2nd stage
to tighten on 90 ° (90 °)
Nuts of conrod covers:
  – 1st stage
22 (22)
  – 2nd stage
to tighten on 90 ° (90 °)

* cm. also subsection 3.2.1.

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