Reno Megan, Stsenik
+ Cars of mark Renault Megane
+ Maintenance service
- Engine repair
+ Repair of petrol engines of 1.4 l and 1.6 l in an impellent compartment
- Repair of petrol engines of 2.0 l in an impellent compartment
The description of check of a compression
Arrangement of the top dead point (ВМТ) for the piston №1
Check and adjustment of backlashes of valves (engines F3R)
Removal, survey and installation gear drive a belt
Removal, survey and installation of cogwheels drive a belt and the tension mechanism
Replacement of epiploons of a cam-shaft
Replacement of an epiploon of an intermediate shaft
Removal, survey and cam-shaft installation (ов) and pushers
Removal, survey and installation of a head of the block of cylinders
Removal and pallet installation
Removal, survey and installation of the oil pump
Replacement of epiploons коленвала
Engine/transmission support - survey and replacement
Removal, survey and installation of a flywheel/privodnogo of a disk
+ Repair of the diesel engine in an impellent compartment
+ Procedures of removal and engine major repairs
+ System of cooling, heating
+ Power supply systems, release
+ Engine electric equipment
+ Coupling
+ Transmission
+ Power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ Electric equipment schemes
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Check and adjustment of backlashes of valves (engines F3R)
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Check is not included in the service schedule. To undertake it follows in the event that noise from газораспределительного the mechanism or if it is suspected is audible that capacity loss has occurred because of wrong backlashes of valves. At installation the new lining клапанной covers can be demanded. |
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1. Let out from fastenings a plastic cover of a plait of wires which is located between the inlet pipeline and a head of the block of cylinders.
2. Where it is applied, disconnect a ventilation hose картера from клапанной covers.
3. Turn away a nut клапанной covers and get a cover (address to an accompanying illustration).
4. Remove spark plugs as it is described in Section Replacement of spark plugs and check of system of ignition.
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5. Sketch an arrangement of valves on a paper piece, having numbered them from 1 to 8 from outside transmissions (address to an accompanying illustration). |
6. To facilitate access to a pulley коленвала, cock a manual brake, then поддомкратьте a forward part of the car and establish it on axial props. Turn away screws of fastening and remove the bottom guard of the engine.
7. Turn коленвал until valves of the cylinder №1 do not become in intermediate position - i.e. the final valve will be closed, and inlet - to open. The piston of the cylinder №4 will be above a compression step, and both its valves will be completely closed - now it is possible to check up backlashes for both valves of the cylinder №4.
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8. Insert probe a correct thickness (address to Specifications) between a working ledge of a cam and a washer on pusher top (address to an accompanying illustration). If probe enters freely or does not enter absolutely, selecting probeы a various thickness, define an exact backlash and write down it that after it was possible to calculate a demanded thickness of a new washer. Pay attention that backlashes of inlet and final valves are various. |
9. Having checked up backlashes of valves of the cylinder №4, turn коленвал on a half-turn so that valves of the cylinder of №3 steels in intermediate position, then check up backlashes of valves of the cylinder №2. Check up also backlashes of the remained valves in the following sequence:
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Valves in intermediate position on the cylinder |
Check up on the cylinder |
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1 |
4 |
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3 |
2 |
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4 |
2 |
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2 |
3 |
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For adjustment the micrometer is required.
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1. If the backlash of valves differs from the regulated size, it is necessary to replace an adjusting washer. |
2. The thickness of a washer is designated on its bottom party, but it is better to define it by means of a micrometer as as a result of deterioration it can be less specified (address to an accompanying illustration).
3. The demanded thickness of a washer is calculated as follows. If a measuring backlash less specified in Specifications, subtract from the backlash specified in Specifications the measured backlash, and then subtract this difference from a thickness of an existing washer.
For example:
The calculation example - a backlash is too small
The measured backlash () = 0.15 mm
The necessary backlash () = 0.20 mm
Difference (В-А) = 0.05 mm
Thickness of the established washer = 3.70 mm
Demanded thickness of a washer + 3.70 - 0.05 = 3.65 mm
4. If the measured backlash more specified in Specifications, subtract from the measured backlash the backlash specified in Specifications and add result to a thickness of an existing washer.
For example:
Calculation example - a backlash too big
Measuring backlash () = 0.50 mm
Desirable backlash () = 0.40 mm
Difference (And-) = 0.10мм
Thickness of the established washer = 3.45 mm
Demanded thickness of a washer = 3.45+0.10=3.55 mm
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5. The washer can be removed from a pusher, without removing a cam-shaft if there is special tool Renault (address to an accompanying illustration). |
6. To remove a washer, the pusher is necessary for pressing, overcoming pressure of a spring of the valve. Theoretically, it can be made if to rest the lever against a cam-shaft between working surfaces of cams a suitable screw-driver, pressing a pusher with an adjusting washer downwards, but it is not recommended the manufacturer. If this method nevertheless is used, work very cautiously, do not damage a cam-shaft, a head of the block of cylinders or a pusher.
7. Working ledges of cams by pusher pressing should be directed upwards, and pushers turn so that their cuts have settled down perpendicularly to a cam-shaft axis. Establish a washer marks of a thickness downwards.
8. If tool Renault is not present and it is impossible to make suitable replacement for removal of washers it will be necessary to remove a cam-shaft as the Description of check of a compression is described in Section.
9. Remove a head or a wrench from a pulley bolt коленвала. Establish the bottom guard of the engine and lower the car on the earth.
10. Establish spark plugs as it is described in Section Replacement of spark plugs and check of system of ignition, then establish клапанную a cover with a new lining (if it is necessary).
11. Connect a ventilation hose картера to a cover and establish all components which have been removed or disconnected. |
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