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
|
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. |
|
