Lexus:: RX 300:: Engine

4. Engine

Specifications

General information

Engine type	6-cylinder petrol 4-stroke engine, DOHC
Designation	1MZ-FE
Sequence of ignition	1-2-3-4-5-6
Direction of rotation of a bent shaft	Clockwise
Diameter of the cylinder//piston stroke, mm	87.5 / 83
Volume of cylinders, cm ³	2995
Extent of compression	10.5:1
Compression pressure, atm
At 250 rpm (standard)	14.8
Minimum	9.9
The maximum admissible difference of compression pressure in cylinders, atm	1
Turns of idling, rpm
At switched off To/in	700 ± 50
At included In ("COOL") and the fan ("HI")	730 ± 50
Valvate gap	see Specifications to the Head Nastroyki and routine maintenance of the car
Ignition advancing corner, hail. to VMT
At peremknuty contacts of the TE1 and E1 DLC socket No. 1	8÷12
At the opened contacts of the TE1 and E1 DLC socket No. 1	10÷25
Ledge of a pusher of a natyazhitel of a belt of the GRM drive, mm	10.0÷10.8
The maximum admissible deformation of the interfaced surface of the air distributor, mm	0.10
The maximum admissible deformation of the interfaced surface of the inlet pipeline, mm
To the air distributor	0.15
To a head of cylinders	0.08
The maximum admissible deformation of the interfaced surface of a final collector, mm	0.5
Engine VSV support resistance (at a temperature of 20 a hail.), Ohm	18÷22
Pressure of motive oil, atm
Idling	not less than 0.3
At 3000 rpm	2.9÷5.3
Gap between rotors of the oil pump and the top plane of their adjusting nest, mm
Standard	0.03÷0.09
Maximum	0.15
Gap between rotors of the oil pump, mm
Standard	0.11÷0.24
Maximum	0.35
Gap between the conducted rotor of the oil pump and a wall of an adjusting nest of rotors, mm
Standard	0.250÷0.325
Maximum	0.30

Assembly of a head of cylinders

The maximum admissible deformation of the surface interfaced to the block of cylinders, mm	0.1
Diameter of a tension part of a bolt with a head under a prutkovy key hexagon of fastening of a head of cylinders, mm
Standard	8.95÷9.05
Maximum	8.75
Internal diameter of the directing plug of the valve, mm	5.510÷5.530
Diameter of a core of the valve, mm
Inlet valve	5.470÷5.5485
Final valve	5.465÷5.480
Oil gap of the valve (standard//minimum), mm
Final valve	0.025÷0.060//0.08
Final valve	0.030÷0.065//0.10
Valve facet corner, hail.	44.5
Corner of the interfaced valve saddle surface, hail.	45
Width of the interfaced surface of a saddle of the valve, mm	1.0÷1.4
Valve saddle pro-point corners, hail.	30,45,75
Height of a corbel of a head of the valve, mm
Standard	1.0
Masimalny	0.5
Full standard//minimum length of the valve, mm
Inlet valve	95.45 / 94.95
Final valve	95.40 / 94.90
The maximum deviation of a valvate spring from a vertical, mm	2.0
Length of a valvate spring in a free state, mm	45.50
Tension of the valvate spring compressed to length of 33.8 mm, N	186÷206
Diameter of a pro-point under a pusher of the valve, mm	31.000÷31.016
Diameter of a pusher of the valve, mm	30.966÷30.976
Oil gap of a pusher of the valve, mm
Standard	0.024÷0.050
Maximum	0.07
Outer diameter of the directing plug of the valve, mm
Standard	10.333÷10.334
Overestimated	10.385÷10.383
Height of the directing plug of the valve, mm
Inlet valves	34.5
Final valves	40.5
Height of a ledge of the directing valve plug from a head of cylinders, mm
Inlet valves	11.1÷11.5
Final valves	8.9÷9.3
Diameter of a pro-point under the directing plug of the valve, mm
Standard	10.295÷10.313
Overestimated	10.345÷10.363

Camshafts

Diameter of necks, mm	26.959÷26.975
Maximum admissible radial beating of an average neck, mm	0.06
Height of cams (standard//minimum), mm
Inlet camshaft	42.932÷43.032//42.78
Final camshaft	42.764÷42.864//42.61
Oil gap in bearings (standard//minimum), mm
Inlet camshaft	0.035÷0.072//0.10
Final camshaft	0.025÷0.062//0.09
Axial side play, mm
Standard	0.04÷0.09
Maximum	0.12
Dead course of gear wheels, mm
Standard	0.02÷0.20
Maximum	0.30
Gap in spring cutting ring of a gear wheel, mm	18.2÷18.8

Block of cylinders and bent shaft

Axial side play of the conrod bearing, mm
Standard	0.15÷0.30
Maximum	0.35
Thickness of a rod, mm	20.80÷20.85
Oil gap in conrod bearings, mm
Standard	0.038÷0.064
Maximum	0.08
Thickness of walls of inserts of conrod bearings, mm
Tag "1"	1.484÷1.487
Tag "2"	1.487÷1.490
Tag "3"	1.490÷1.493
Tag "4"	1.493÷1.496
Diameter of conrod necks of a bent shaft, mm	52.992÷53.000
Axial side play of radical bearings of a bent shaft, mm
Standard	0.04÷0.24
Maximum	0.30
Thickness of a persistent washer bent shaft, mm	1.930÷1.980
Oil gap (standard//maximum) in radical bearings of a bent shaft, mm
Necks No. 1 and No. 4	0.014÷0.034//0.05
Necks No. 2 and No. 3	0.026÷0.046//0.06

The required inserts of radical bearings of a bent shaft, proceeding from the sum of numerical tags on a shaft (A) and on the block of cylinders (B).

Tags on cranked to a shaft, on the block of cylinders and on inserts of radical bearings

Necks 1 and 4
A + B = (0÷5)	tag "3"
A + B = (6÷11)	tag "4"
A + B = (12÷17)	tag "5"
A + B = (18÷23)	tag "6"
A + B = (24÷28)	tag "7"
Necks 2 and 3	value of a tag on inserts of necks 1 or 4 minus 2
Landing diameter of radical necks of a bent shaft according to tags, mm	66.0XX, where XX – a numerical tag (from "00" to "16")
Diameter of radical necks of a bent shaft according to tags, mm	(61.000-0.0XX), where XX – a numerical tag (from "00" to "12")
Thickness of walls of inserts of radical bearings, mm
Tag "1"	2.486÷2.489
Tag "2"	2.489÷2.492
Tag "3"	2.492÷2.495
Tag "4"	2.495÷2.498
Tag "5"	2.498÷2.501
Tag "6"	2.501÷2.504
Tag "7"	2.504÷2.507
Maximum admissible radial beating of the camshaft, mm	0.06
Maximum admissible conicity and ovality of necks of the camshaft, mm	0.02
The maximum admissible deformation of the surface interfaced to a head of cylinders, mm	0.07
Diameter of the cylinder, mm
Standard	87.500÷87.512
Maximum	87.520
Diameter of a tension part of a bolt (with a 12-faced head) fastenings of a cover of the radical bearing of a bent shaft, mm
Standard	7.50÷7.60
Minimum	7.20

Pistons and rods

Diameter of the piston at distance of 23.2 mm from the bottom, mm	87.406÷87.416
Oil gap of the piston in the cylinder, mm
Standard	0.08÷0.11
Minimum	0.13
Gap of landing of piston rings, mm
No. 1	0.20÷0.70
No. 2	0.20÷0.60
The lock section size (standard//maximum) the established piston rings, mm
No. 1	0.25÷0.35//0.95
No. 2	0.35÷0.45//1.05
Plates of an oil scraper ring	0.15÷0.40//1.00
The maximum admissible linear roughness of a rod on 100 mm of length, mm	0.05
The maximum admissible curvature of a rod on 100 mm of length, mm	0.15
Internal diameter of an opening under a finger, mm	22.005÷22.014
Diameter of a finger, mm	21.997÷22.006
Gap of landing of a finger, mm
Standard	0.005÷0.011
Maximum	0.05
Diameter of a tension part of a bolt of fastening of a cover of the conrod bearing, mm
Standard	7.2÷7.3
Minimum	7.0

Efforts of tightening of threaded connections, Nanometer

Bolt of fastening of the holding plate of a cogwheel of a bent shaft	8
Bolts of fastening of intermediate rollers of a belt of the GRM drive
Top roller (No. 2)	43
Lower roller (No. 1)	34
Fixture of a natyazhitel of a driving belt to the oil pump	27
Bolts of fastening of cogwheels of camshafts
Right number of cylinders	88
Left number of cylinders	125
Bolt of fastening of the right basic arm of the engine	28
Bolts of fastening of covers of a belt of the GRM drive	8.5
Bolt of fastening of a pulley of a bent shaft	215
Nut of fastening of an arm No. 2 of the generator	28
Bolts of fastening of an arm of the generator to the block of cylinders	43
Bolts of fastening of covers of bearings of camshafts	16
Nut of fastening of a rotor of VVT-i	150
VVT-i valve filter stopper	45
Bolts of fastening of a back cover of a head of cylinders	10
Fixture of a side cover of the block of cylinders	9
Bolts of fastening of heads of cylinders
With 12-faced heads	54 then to hold on the 90th hail on a corner.
With heads under a prutkovy key	18.5
Bolts of fastening of covers of bearings of camshafts	16
Bolts of fastening of covers of heads of cylinders	8
Nuts of fastening of a final collector	49
Fixture of a rack of a final collector
Right	34
Left	20
Fixture of the fuel giving hose to the fuel filter	29
Pump GUR arm fixture	43
Bolt of fastening of a guide of the probe of level of motive oil	8
Nuts of fastening of the catalytic converter	62
Bolt of fastening of the giving cooling system tube to a head of cylinders	19.5
Bolts of fastening of a back plate of a head of cylinders	8
Fixture of a water waste branch pipe	15
Air distributor fixture to the inlet pipeline	43
Fixture of the inlet pipeline to a head of cylinders	15
Bolts of fastening of a lifting hook No. 1 of the engine	39
Bolts of fastening of a rack of the air distributor	19.5
Nut of fastening of the tire of grounding to the air distributor	14.5
Bolts of fastening of a lifting hook of the engine	19.5
Bolts of fastening of a forward support and back arm of fastening of the engine to the engine	64
Nuts of a back arm of fastening of the engine to a back support	87
Bolts of fastening of the power unit to the left support	64
Bolts of fastening of a quencher of fluctuations of the engine	48
Bolts of fastening of a forward support of the engine to a stretcher	80
Bolts of fastening of assembly of the steering mechanism with thirsts for a stretcher	181
Bolts of fastening of the stabilizer of a forward suspension bracket to a stretcher	19
Bolts of fastening of the pump GUR	43
Bolts of fastening of support of a back stretcher
A bolts	181
B bolts	32
Bolts of fastening of support of a back stretcher	181
Bolts of the right basic arm No. 2 and draft of fastening of the engine
Bolts of A, B, C	64
Bolt of D	32
Nuts of fastening of forward and central sections of an exhaust pipe	62
Nuts of fastening of forward section No. 2 of an exhaust pipe	56
Nuts of fastening of the top strut of the engine	80
Nuts of fastening of levers of screenwashes to their drafts	24
Bolts of fastening of covers of conrod bearings
1st stage	24.5
To hold on the 2nd stage	on a corner 90th hail.
Bolts of fastening of covers of radical bearings
With a 12-faced head
1st stage	22
2nd stage	to hold on the 90th hail on a corner.
With a 6-faced head	27
Bolts of fastening of the holder of a back epiploon of a bent shaft	8
Drain traffic jams of OZh in the block of cylinders	39
Bolts of fastening of sealing laying of the cooling system of the block of cylinders	18
Coupling of an oil filter	30
Bolts of fastening of a reception branch pipe of OZh	8
Detonation sensors	39
GRM drive belt roller No. 2 arm fixture	28
Fixture of an arm of the K/V compressor	25
Bolts of fastening of a driving disk	83
D/V of pressure of motive oil	13
Stopper of the reducing valve of the oil pump	49
Bolts of fastening of the oil pump
With a head of 10 mm	8
With a head of 12 mm	19.5
CKP sensor	8
Fixture of a maslootrazhatelny plate to the top section of the pallet of a case	8
Bolts of fastening of the top section of the pallet of a case
With a head of 10 mm	8
With a head of 12 mm	19.5
With a head of 14 mm	37.2
Bolts of fastening of the lower cover of a cavity of a driving disk	7.8
Fixture of a maslozabornik	8
Fixture of the lower section of the pallet of a case	8
Drain stopper of motive oil	45