Toyota Land Cruiser 100/Amazon, Lexus LX 470

since 1997 of release

Repair and car operation

Removal and installation of camshafts and pushers of valves

Before starting procedure performance, prepare two bolts 6 * 10 mm in length of 16-20 mm.

Components of the klapanny mechanism

1 — the Cover of the right head of cylinders
2 — the Cover of the left head of cylinders
3 — the Sealing ring of a directing tube of a candle niche
4 — Sealing laying
5 — the Oil pipeline
6 — the Right final camshaft
7 — the Cover of the bearing of a camshaft
8 — the Left inlet camshaft
9 — the Spring of a gear wheel of a camshaft
10 — the Right inlet camshaft
11 — the Lock ring
12 — the Wavy washer
13 — Podpruzhinennoye a gear ring
14 — a camshaft Epiploon
15 — an engine Eye

16 — the Left final camshaft
17 — the Right head of cylinders with a final collector
18 — Laying of the right head
19 — Laying of the left head
20 — the Left head of cylinders with a final collector
21 — the Arm of fastening of conducting of the engine
22 — the Stopper of the case of a camshaft
23 — Segment jams
24 — the Spark plug
25 — engine Conducting
26 — I Will corrode a lambda probe (the sensor 1, the block 2)
27 — I Will corrode a lambda probe (the sensor 1, the block 1)
28 — the Sealing ring
29 — Shchup of measurement of level of impellent oil
30 — Bolts of a head of cylinders

Removal

PERFORMANCE ORDER

1. Remove covers of heads of cylinders (see. The section Reduction of the piston of the first cylinder in the provision of the top dead point (VMT)) and a gas-distributing belt (see. The section Removal, check of a condition and installation of a gas-distributing belt and cogwheels of a drive of GRM) (address to an illustration above).
2. Bring the piston of the first cylinder into the provision VMT of the end of a step of compression.

3. Procedure described below is applicable to all four camshafts. In both heads first of all the final shaft (after blocking of a podpruzhinenny gear ring with a gear wheel), then final always acts in film. At first remove camshafts of the right head of cylinders. Check an arrangement of an adjusting label on a pulley of a cranked shaft on one line with its bolt and an intermediate roller (address to an accompanying illustration).

External shaft in both heads are final, internal – inlet.

4. Combine service openings, developing a rozhkovy key a camshaft for its six-sided part. Block a podpruzhinenny gear ring on a conducted gear wheel by means of a service bolt, the bolt is passed in an opening in a ring and rolled in a reception carving opening in a gear wheel (address to paragraph 3 illustration).

In view of that axial люфт camshafts it is minimum, try to hold constantly at extraction assemblies in horizontal situation, the slightest distortion can lead to emergence of cracks in a head around an arrangement of gear wheels. Before taking a shaft, make sure that the effort developed by a torsionny spring, is completely compensated by means of a service bolt.

5. Establish a label on a camshaft gear wheel approximately in 10 ° (address to paragraph 3 illustration). Operating strictly in a certain order (address to an accompanying illustration), in stages (on 1/4 turns for an approach) weaken bolts of fastening of covers of bearings of camshafts so that there was a possibility of a reversing of bolts manually.

For fastening of covers bolts of the different sizes are used – do not mix them at installation.

6. Remove an oil pipeline, covers of bearings and it is careful, trying not to warp, take camshafts from a head of cylinders.

7. Operating in a similar manner, take camshafts from the second head of cylinders taking into account that dot labels on camshafts should be combined (address to an accompanying illustration).

8. Put components removed from the engine strictly in the organized manner guaranteeing possibility of their installation at assembly on the former places.

At this stage adjusting washers of pushers of valves which at assembly also should be established strictly on the former places can be taken by means of a magnet.

9. For dismantle of assembly of a gear wheel clamp a final camshaft for лыски in a vice with soft sponges.

10. By means of a shtiftovy key develop a gear ring clockwise so that to remove effort developed by a spring from a service bolt (address to an accompanying illustration), then turn out the last, having released a ring.

In the absence of near at hand shtiftovy key pass in a free opening in a cogwheel the second service bolt, and, using it as a support, develop a wheel by means of a screw-driver.

11. By means of special flat-nose pliers remove fixing gear wheel assembly a lock ring (address to an accompanying illustration).

12. Remove from a shaft pin a wavy washer, a gear ring and a torsionny spring (address to an accompanying illustration). Track, that components removed from the left shaft developed separately from components with right.

Check

PERFORMANCE ORDER

1. Visually estimate a condition of working surfaces of cams and bearing necks of shaft. Pay attention to scratches, cavities, overheat traces, etc. special attention it is necessary to give to a condition of a layer of superficial training of cams. By means of a micrometer measure height of cams.
2. By a micrometer measure diameters of each of bearing necks of both camshafts. Measurement make in several points carried as on length of a neck (about konusnost identification), and on forming each section (about detection of ovality). Write down the received results. Measure internal diameter of bearings of a camshaft by a nutromer and write down results of measurements. Calculate a gap, subtracting value of diameter of a neck from value of diameter of its bearing.
3. Establish a camshaft on prisms and measure by means of a tsiferblatny measuring instrument palpation of an average neck. Compare results of checks to requirements of Specifications, in case of need replace a worn-out shaft.

Installation

PERFORMANCE ORDER

1. Mount assembly of a gear wheel of a final shaft, having established into place a torsionny spring, a gear ring and a wavy washer. Fix assembly by a lock ring, having tracked reliability of landing of the last.
2. Clamp shaft assembly in a vice with soft sponges.
3. Pass a service bolt in a smooth opening in a gear ring, by means of a screw-driver develop a ring clockwise so that there was a combination of openings, and screw the second bolt in a gear wheel, having strongly pulled together with it assembly. Take from a ring the first service bolt. Similarly block assembly of a gear wheel of the second shaft.
4. Remove from segment jams old hermetic. Put hermetic in flutes of jams and establish them in heads of cylinders. At first establish the right camshafts.
5. Grease pushers with molibdensoderzhashchy greasing and plant them strictly on the former places in heads of cylinders. Track, that each of pushers was completed with the former adjusting washer.
6. Grease cams, bearing necks and persistent surfaces of a gear wheel of a shaft with molibdensoderzhashchy greasing

7. Lay shaft on the regular places. Turning a camshaft a rozhkovy key, establish a dot label of a shaft at an angle about 10 ° over a horizontal. Remove old hermetic from a forward cover of the bearing and put a strip in width about 1.5 mm of fresh FIPG hermetic on the specified places (address to an accompanying illustration). Do not allow hermetic hit in cover flutes.

8. Establish a cover before hermetic will stiffen. Installation of a forward cover defines a persistent gap of a camshaft.

9. Establish other covers strictly on the former places (according to digital marking), track, that strelochny labels were developed by edges towards GRM drive (address to an accompanying illustration).

10. Establish a new epiploon of a camshaft.
11. Grease carving parts of bolts of D and E. Operating in strictly certain order (address to paragraph 9 illustration), in stages (on 1/4 turns for an approach) tighten in some approaches bolts of fastening of covers with demanded effort.
12. Turn out a service bolt.

13. Operating in a similar manner, establish camshafts of the left head of cylinders taking into account that dot labels on camshafts should be combined (address to an accompanying illustration): installation of forward covers of bearings.

13. Installation of other covers of bearings (address to an accompanying illustration).

14. Check klapanny gaps (see. Head of Control and routine maintenance of the car)
15. Establish a gas-distributing belt (see. Section Removal, check of a condition and installation of a gas-distributing belt and cogwheels of a drive of GRM).
16. Before installation of covers of heads of cylinders remove from them and from segment jams old hermetic. Put on a place of a joint of a klapanny cover with a cover of the No. bearing of 1 camshaft new hermetic. Put hermetic in the central flute of segment jams and establish them in a head of cylinders. Establish new laying of covers of heads of cylinders, check a condition of sealants under bolts of fastening of covers and establish covers of heads of cylinders.
17. Further installation is made as it should be, the return to an order of dismantle of components.
18. Start the engine and check it on existence of signs of development of leaks.