Toyota Land Cruiser
+ 1. Maintenance instruction
+ 2. Maintenance
- 3. Engines
+ 3.1. Engines 2F and 3F-E
- 3.2. Verkhneklapanny engine 1FZ-FE
3.2.1. Technical characteristics
3.2.2. Types of repair without engine dismantle
3.2.3. Cover of a head of cylinders
3.2.4. A soaking-up collector
3.2.5. Final collector
3.2.6. Cam-shafts and pushers
3.2.7. Head of cylinders
3.2.8. Cover of a chain drive of cam-shafts
3.2.9. Forward epiploon of the crankshaft
3.2.10. Oil pallet
3.2.11. Oil pump
3.2.12. Flywheel (a leading disk of the hydrotransformer)
3.2.13. Back epiploon of the crankshaft
3.2.14. Suspension bracket and engine details
+ 3.3. Dismantle and major maintenance of the engine
+ 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
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Prevention
Before works prepare two bolts with carving of 6х1 mm and length of 16-20 mm which will be used when dismantling as auxiliary (see below).
Removal
| PERFORMANCE ORDER |
| 1. Uncover heads of cylinders (see subsection 3.2.3). |
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2. Establish the piston of the 1st cylinder in VMT of a step of compression. Be convinced that dot labels (1) on the leader and conducted gear wheels of cam-shafts are combined and located on one line of the parallel demountable plane of a head of cylinders and covers, and labels (2) are turned in different directions. Otherwise check that with zero division of a scale it is combined risk of VMT of the crankshaft and turn the crankshaft on 1 turn. |
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3. Measure axial люфт each of cam-shafts. If люфт exceeds maximum permissible, a cam-shaft and (or) a head of the block of cylinders are subject to replacement. |
| 4. Remove the ignition distributor (see subsection 3.4.6). |
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5. Unscrew bolts of a cover of a natyazhitel (are specified by shooters). |
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6. Get a natyazhitel from a forward cover. |
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7. Designate a chain link opposite to a dot label (are specified by shooters). |
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8. Unscrew an asterisk bolt, holding a cam-shaft a key for special лыски. |
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9. Remove a gear wheel of a drive of the distributor. Carefully remove an asterisk (it is specified by an arrow) and a chain from a cam-shaft and leave them on directing. |
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CAM-SHAFT OF FINAL VALVES
| PERFORMANCE ORDER |
1. At first remove a cam-shaft of final valves, previously having fixed a spring of an auxiliary gear wheel.
Prevention
Cam-shafts remove one by one, keeping their parallelism of the plane of a head of cylinders. Otherwise inflow damage on a head of cylinders which provides standard axial люфт a cam-shaft is possible.
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2. For fixing of a spring turn a cam-shaft so that the technological opening under an auxiliary bolt was turned vertically up. Attach an auxiliary gear wheel to the main gear wheel in advance prepared bolt with carving М6 and length of 16-20 mm. |
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3. Turn a cam-shaft of inlet valves so that labels (1) gear wheels were displaced on a corner 35 ° rather horizontal axis. |
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4. Displace a cam-shaft back, gradually and evenly unscrew bolts of a cover of necks of a cam-shaft of N1 (the sequence of removal of covers of basic necks of cam-shafts is specified by figures). |
| 5. Carefully unscrew bolts of covers 2, 3, 5 and 7, evenly releasing the left and right bolts. Bolts of covers 4 and 6 not to turn on. |
| 6. Carefully unscrew bolts of covers 4 and 6, watching uniformity of a raising of a cam-shaft concerning the plane of a head of cylinders. If the cam-shaft is released with a distortion, wrap bolts of covers 4 and 6, establish covers 1, 2, 3, 5 and 7 and repeat procedure. Achieve parallel release of a cam-shaft. |
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CAM-SHAFT OF INLET VALVES
| PERFORMANCE ORDER |
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1. Turn a cam-shaft of inlet valves so that labels (1) gear wheels were displaced on a corner 25 ° rather horizontal axis. |
| 2. Displace a cam-shaft forward, gradually and evenly unscrew bolts of a cover of N1. |
| 3. Carefully unscrew bolts of covers 3, 4, 6 and 7, evenly releasing the left and right bolts. Bolts of covers 2 and 5 not to turn on. |
| 4. Carefully unscrew bolts of covers 2 and 5, watching uniformity of a raising of a cam-shaft concerning the plane of a head of cylinders. If the cam-shaft is released with a distortion, wrap bolts of covers 4 and 6, establish covers 1, 3, 4, 6 and 7 and repeat procedure. Achieve parallel release of a cam-shaft. Remove a cam-shaft of inlet valves. |
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5. Wipe from oil adjusting washers of pushers, put labels with a marker and remove pushers and adjusting washers. |
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6. Store covers of basic necks, pushers and washers in that order in which these details were established. |
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7. Clamp an inlet cam-shaft in a vice for a six-sided neck. A natural two persistent pins turn an auxiliary gear wheel clockwise, then unscrew the auxiliary bolt, fixing the main and auxiliary gear wheel, and carefully weaken effort, giving the chance to an auxiliary gear wheel to turn counter-clockwise, before spring liberation. |
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8. Take a lock ring of an auxiliary gear wheel. |
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9. Cнимите spring washer (1), auxiliary gear wheel (2) and spring of an auxiliary gear wheel (3). |
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Check
Installation of covers of basic necks of cam-shafts
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Numbers are put on covers of basic necks of cam-shafts and oriyentatsionny arrows who should be directed towards a forward part of the engine. |
Gap definition in basic necks of cam-shafts
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The gap in basic necks of cam-shafts is determined by width of the crushed plastic calibration wire. |
| PERFORMANCE ORDER |
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1. Measure distance between the ends of a spring of an auxiliary gear wheel in a free condition and compare to the standard. If the distance differs from standard, a spring replace. |
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2. Check a condition of pushers. Existence of chips and deep development is not allowed. |
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3. Check existence on basic necks and cams of a cam-shaft of wear tracks – grooves, poles, a navolakivaniye of metal and overheat traces (the painted sites of bluish color). Check existence on each cam of an otsloyeniye of the tempered layer. Measure the size of each cam of a cam-shaft and compare to the standard. If the size at least one of cams less standard, a cam-shaft of a zamenite.metka a marker also remove pushers and adjusting washers. |
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4. Measure diameter of basic necks of a cam-shaft and compare to the standard. If diameter at least one basic neck less standard, a cam-shaft replace. |
5. Check gaps in basic necks for each cam-shaft, having arrived as follows:
– clear basic necks of a cam-shaft and a cover of basic necks in solvent;
– carefully lay a cam-shaft (ы) in a head of the block of cylinders without pushers, adjusting washers and an auxiliary gear wheel. Availability of oil on necks is not allowed;
– across each basic neck of a cam-shaft lay pieces of a plastic calibration wire;
– establish covers of basic necks of cam-shafts so that shooters were directed towards a forward part of the engine (see fig. Installation of covers of basic necks of cam-shafts);
– tighten bolts with the set moment turning each bolt on 1/4 turns at one time;
Prevention
Cam-shaft turn with the inserted plastic calibre is not allowed.
– unscrew bolts and remove covers;
– compare width of the crushed wire (in the widest place) to a scale on packing (see fig. Gap definition in basic necks of cam-shafts);
– if the gap at least in one of necks exceeds norm, a cam-shaft and (or) a head of the block of cylinders are subject to replacement;
– соскребите a nail or a credit card the plastic remains, thus do not scratch a basic neck or an internal surface of a cover. |
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6. At temporarily established covers of basic necks check a gap in gearing of gear wheels of cam-shafts. Holding a key one of cam-shafts for a six-sided neck, check size of moving of a gear wheel of other cam-shaft. Result compare to the standard. If the gap is higher than norm, both cam-shafts replace. |
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Installation
CAM-SHAFT OF INLET VALVES
Installation of a cam-shaft of inlet valves
| PERFORMANCE ORDER |
| 1. Grease and establish pushers and adjusting washers on former places, previously having greased with molybdenic greasing. |
| 2. Grease with molybdenic greasing basic necks and cam-shaft cams. Grease a persistent part of a cam-shaft of inlet valves. |
| 3. Establish a cam-shaft of inlet valves in a head of cylinders so that cams 1 and 4 were turned down. |
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4. Displace a cam-shaft forward and establish covers of basic necks 2 and 5, observing numbering and orientation of arrows which should be directed towards a forward part of the engine. |
| 5. Slightly tighten covers of basic necks 2 and 5. |
| 6. Establish covers 3, 4, 6, 7 and, observing sequence, slightly tighten bolts of covers before contact with a head of cylinders. |
| 7. Establish a cover 1 and evenly tighten both bolts. |
| 8. Tighten all bolts of covers with the set moment in some stages. |
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CAM-SHAFT OF FINAL VALVES
| PERFORMANCE ORDER |
| 1. Collect a cam-shaft of final valves with springs and an auxiliary gear wheel, fix all details a lock ring. |
| 2. Establish pushers and adjusting washers on former places, previously having greased with molybdenic greasing. |
| 3. Grease with molybdenic greasing basic necks and cam-shaft cams. |
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4. Combine labels on gear wheels of cam-shafts (1 – combination). These labels should be located on 180 ° concerning their situation at removal of cam-shafts. |
| 5. It is necessary to consider that the design of a gazoraspredeleniye of the considered engine does not allow connections with a tightness. Bolts of covers should be tightened in this situation, then the cam-shaft should be turned back to establish in the situation relevant to VMT in which contact surfaces adjoin evenly, without obstacles from efforts of the springs operating on cams. |
| 6. Turn a final cam-shaft on inlet and establish into place. Turn a cam-shaft in both parties to provide the correct landing in necks. |
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7. Establish covers 4 and 6, observing numbering and orientation of arrows which should be directed towards a chain. |
| 8. Slightly tighten covers 4 and 6. |
| 9. Establish covers 2, 3, 5, 7 and, observing sequence, slightly tighten bolts of covers. |
| 10. Establish a cover 1 and evenly tighten both bolts. |
| 11. Tighten all bolts of covers with the set moment in some stages. |
| 12. Turn cam-shafts so that the auxiliary bolt appeared above and turn out a bolt. Be convinced of smoothness of rotation of cam-shafts. |
| 13. Expose cam-shafts so that the provision of labels corresponded to VMT. Be convinced that dredging of a pulley of the crankshaft is combined with division of VMT of a scale. |
| 14. Establish a chain with an asterisk, having checked coincidence of labels put when dismantling. Tighten a bolt. |
| 15. Establish a natyazhitel of a chain, having replaced laying. Press on a natyazhitel, turn and tighten nuts. |
| 16. Establish other details upside-down. Adjust gaps in valves (see subsection 2.29). |
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