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Lada Niva Manual - Maintenance

Page 5

Table 3 - Sequence of Valve Clearance Adjustment.

Crankshaft

No of cylinder in which piston is on

TDC

Valves under adjustment

angle

at end of compression stroke

exhaust

intake

degrees

Cylinder

No.

Cam No.

Cylinder

No.

Cam No.

0

4

4

8

3

6

180

2

2

4

4

7

360

1

1

1

2

3

560

3

3

5

1

2

•

Reinstall the cylinder head cover with its gasket. Adjustment over, check the tightening
torque of the crankshaft jaws, which should be 122 NÆm (12.2 kg Æ m).

Tensioning the Valve Gear Chain

Every 10.000 Km, adjust the tension of

timing chain 2 (Fig.  34).  Do  it  on  a  new  car
after  the  first  2,000-  3,000  Km.  For  this
purpose,  loosen retaining  nut  7  and  turn  the
crank- shaft  through 1-1~5 revolutions in  the
direction  of  its  normal  rotation.  In  this  case
spring 10 actuates  shoe 6 through plunger 11
and  automatically  sets  the  required  chain
tension. Adjustment over, tighten nut 7.
Adjust chain tension also in case of excessive
operation noise in the valve gear.

Fig 34. Valve Gear Drive

. 1 - camshaft sprocket, 2 - chain, 3 -

dampener, 4 - oil pump drive shaft sprocket, 5 - crankshaft
sprocket, 6 - chain tensioner shoe, 7 tensioner rod retaining nut, 8 -
retainer, 9 - tensioner adjusting rod, 10 - plunger spring, 11 -
tensioner plunger

FUEL SYSTEM

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Содержание Niva

Страница 1: ......

Страница 2: ...BSORBERS AND ANTIROLL BAR 14 STEERING GEAR AND WHEELS 14 Steering Gear Clearances 14 Front Wheel Hub Bearings 15 Examining the Front Suspension Ball Supports and Steering Rod joints 17 Tyres 17 Replacing the Wheels 19 Front End Alignment 19 BRAKES 20 Brake Hydraulic System 20 Brake Fluid Reservoir 21 Flexible brake hoses 21 FRONT BRAKES 21 REAR BRAKES 23 Bleeding the Brake System 24 Adjusting the ...

Страница 3: ... On a new engine change oil after the first 2 000 3 000 Km then at 10 000 Km and thereafter every 10 000 Km Change oil while the engine is still hot Drain used oil after removing the plug of the hole in the bottom of the engine sump Pour fresh oil through oil filler neck 2 located on the cylinder head cover The seasonal change of oil depends on the change of season as different temperature conditi...

Страница 4: ...ntenance Page 3 Oil Filter Every 10 000 Km replace the filter Do it after the first 2 000 3 000 Km on a new car To replace the filter unscrew it from the cylinder block pig 28 Screw the new filter in place only hand tight ...

Страница 5: ...e to align mark A Fig 32 on the sprocket with mark B on the camshaft housing in this case the piston of the No 4 cylinder will be on TDC at the end of the compression stroke and both valves will be closed Adjust the rocker to cam clearances of the exhaust valve on the No 4 cylinder 8th cam and of the intake valve on the No 3 cylinder 6th cam for this purpose loosen locknut 2 Fig 33 and rotate adju...

Страница 6: ...0 Km adjust the tension of timing chain 2 Fig 34 Do it on a new car after the first 2 000 3 000 Km For this purpose loosen retaining nut 7 and turn the crank shaft through 1 1 5 revolutions in the direction of its normal rotation In this case spring 10 actuates shoe 6 through plunger 11 and automatically sets the required chain tension Adjustment over tighten nut 7 Adjust chain tension also in cas...

Страница 7: ...nt of the air cleaner is required for delivery of fresh or warm air warmed by the exhaust manifold If the average ambient temperature in the season is below 15 C slightly pull and then shift the handle 5 of the gate on the housing of thermo regulator 4 in the upper position HOT and if the average temperature is above 15 C shift the handle to the lower position COLD Figure 35 Air Cleaner 1 nut 2 co...

Страница 8: ...of the tongue if necessary to obtain the required distance the tongue must be perpendicular to the valve axis and the contacting surface of the tongue should have no defects that may cause sticking of the valve Check the float travel which should be 8 mm changing the position of stop 3 if necessary Check that pull back yoke 6 of the needle valve does not interfere with free travel of the valve Rei...

Страница 9: ...h the engine warmed up valve clearances adjusted and a spark advance angle set properly Proceed as follows Start the engine and turn idle mixture screw limiting bushing 2 all the way out Using idle speed screw limiting bushing 1 set the engine speed within 850 900 rpm ...

Страница 10: ...he fluid level should always be 3 4 cm above the MIN mark Fig 38 Check the fluid level on a cold engine only since when the engine is hot the level may rise significantly expansion of the fluid volume may also take place immediately after engine shutdown If the fluid level is below the MIN mark replenish the expansion tank with fluid of the same grade If the coolant level drops constantly and freq...

Страница 11: ... specified grade is not avail able it is permissible at ambient temperatures above zero to use clean water as soft as possible to avoid heavy scale deposition which leads to engine overheating under normal operating conditions When using hard water flush the cooling system twice a year with special descaling agents If an aluminium radiator is in stalled in the car do not use water in the cooling s...

Страница 12: ...inserted into special slot 5 shift the breaker con tact post as required adjustment eve tighten screws 4 4 Check ignition timing for which purpose Connect one end of the wire of a 12 V test lamp to terminal 6 and ground its other end Turn on the ignition and slowly rotate the crankshaft with the starting crank with the ignition set properly the test lamp should come on when mark 4 Fig 42 on the cr...

Страница 13: ... spark plugs 2 2 Check the spark plug gap with a round wire feeler gauge The gap should be 0 5 0 6 mm Fig 43 the gap must be adjusted only by bending the side electrode Every 20 000 Km replace the spark plugs with new ones For re liable starting of the engine at low sub zero temperatures it is recommended to replace the long used spark plugs with new ones even if the used spark plugs are still ser...

Страница 14: ...on of the above adjustments free travel of the clutch pedal before the beginning of clutch release should be 25 35 mm Check the clutch pedal free travel also after the bleeding of the hydraulic control system Presence of air in the system is indicated by the spongy pedal and incomplete release of the clutch clutch drags Bleed the system through the union of operating cylinder 10 in the same way as...

Страница 15: ... one upon washing the joint and changing the grease This operation should be performed at a service station HYDRAULIC SHOCK ABSORBERS AND ANTIROLL BAR Every 30 000 Km check the shock absorbers for serviceability If the shock absorbers operation becomes less efficient which is manifested by slow damping of oscillations 3 4 oscillations of the car body on crossing a road bump or by unusual knocking ...

Страница 16: ...el leftward and rightward through a small angle eliminate the clearance by decreasing the number of shims 3 Fig 50 placed between the case and the thrust bearing cover until the shaft rotates easily without axial displacement Roller to worm backlash which is found by rocking the pitman arm head with the rods disconnected with the car wheels in the straight ahead neutral position eliminate backlash...

Страница 17: ...into the slots on drive end 9 of the propeller shaft Remove the device with the indicator install cap 8 fasten the wheel jack down the car and tighten the wheel nuts all the way home Every 20 000 Km replace grease in the bearings of the front wheel hubs For this purpose proceed as follows Remove the wheel disconnect the brake calliper from steering knuckle 15 and take it off brake disc 1 Remove hu...

Страница 18: ...ing rod joints Determine the clearances by the method of mutual displacement of the steering rods when turning the steering wheel Premature wear of the ball joints is generally caused by damaged protective rubber boots which allow ingress of water and dust into the joints If the boot is in good condition the service life of the joints is practically unlimited Therefore check the protective rubber ...

Страница 19: ...uld not exceed 150 mm Upon installation of new tyres be sure to check the wheel balance at a service station It is not advisable to drive the car on new tyres at a speed greater than 100 km h during the first 500 Km Every 10 000 Km interchange the wheels as shown in Pig 52 to ensure uniform wear of tyres If abnormal vibrations in motion are detected check wheel balance ...

Страница 20: ...ll as in case of rapid and irregular wear of the front wheel tyres and impaired steering of the car check the front end alignment It is advisable that this operation is performed at a service station equipped with a precision optical stand ensuring high accuracy checking and front end alignment Given below is a method though less accurate of checking only the wheel camber and toe in by the Owner h...

Страница 21: ...the front wheel rims Then roll the car to turn its wheels through 180 degrees and measure distance B Toe in is correct if the first dimension is 2 4 mm greater than the second one Toe in is adjusted by changing the length of side steering rods 3 Fig 56 For this purpose loosen clamps 2 and turn adjusting sleeves 1 through the same number of revolutions in the opposite directions thus screwing the s...

Страница 22: ...brake fluid Hesa or ToML Depress pusher 3 on the reservoir cap to check the fluid level transmitter for proper functioning with the ignition switched on the warning lamp should be constantly alight It is recommended to replace the brake fluid after 5 years of operation Flexible brake hoses Every 10 000 Km starting from 30 000 Km check condition of the brake hoses and replace them with new ones if ...

Страница 23: ... brake shoes push the pistons as deep into the cylinders as possible When doing so see that the protective rubber seals of the pistons are in their sockets and are not damaged replace the seals if necessary When the pistons are pushed into the cylinders the brake fluid level in the reservoir rises To prevent overflowing remove the reservoir cap and timely remove the required amount of fluid from t...

Страница 24: ...ke drum If the brake shoes are broken or distorted which prevents uniform shoe to drum contact and reduces efficiency of braking replace the shoes with new ones Also replace the brake shoes when thickness of their linings is reduced to 2 mm Replace the shoes in pairs only If deep notches are formed on the drum working surface have the drums turned in a lathe and ground Prior to installing the drum...

Страница 25: ...dal to force out the brake fluid together with air into the vessel When the brake pedal rests against the stop and escape of the brake fluid ceases screw in the bleeder valve Repeat this operation until air bubbles cease to escape from the hose 5 Keeping the brake pedal de pressed screw the bleeder valve all the way in and remove the hose Wipe the bleeder valve end dry and install the protective c...

Страница 26: ...ures reliable operation of the whole brake system of the car Perform adjustment of the parking brake after adjustment of clearances in the rear brakes and also when the car cannot be braked on a gradient of up to 30 with the brake lever shifted through 4 5 teeth of the quadrant Parking brake lever travel is adjusted by means of the tensioning device as follows Shift the lever into the lower most p...

Страница 27: ...43 transfer differential lock warning lamp switch 44 parking brake warning lamp switch 45 parking brake warning lamp flasher unit 46 headlight wiper twitch 47 cigarette lighter with illumination lamp 41 emergency flasher system switch and warning lamp 49 ignition switch 50 headlight switch 51 direction indicator switch 52 wind shield wiper and washer switch 53 horn button 14 fuel level gauge 55 lo...

Страница 28: ...heck the hydrometer readings against the data given in Table 4 Not included yet If the electrolyte temperature is other than 25 C introduce corrections to the hydrometer readings see Table 5 Every 20 000 Km check the battery for cleanness and for reliable fastening of terminals and clamps clean them and coat with aerosol lubricant BTB l If the car is to be inoperative for less than a month disconn...

Страница 29: ...of a building may serve as a screen 2 Rock the car sideways to stabilise the car suspensions 3 Draw on the screen axial line O located in the car symmetry plane Symmetrically to the axial line draw lines A and B a distance of 1160 mm between them should correspond to the distance between the headlight centres Then draw horizontal line 1 at height h which is a distance from the headlight centre to ...

Страница 30: ...nd two 16 A fuses Fuses are held in the blocks by spring contacts The circuits protected by fuses are listed in Table 6 The electric circuits of ignition engine starting alternator except for the field winding headlight lower beam relay and headlight upper beam relay are not protected by fuses Prior to replacement of a blown out fuse find out and eliminate the cause of trouble Fuse Protected Circu...

Страница 31: ...Lada Niva Manual Maintenance Page 30 Headlight upper beam warning lamp ...

Страница 32: ... level warning lamp Differential look warning lamp Battery no charge warning lamp Choke warning lamp Tachometer Carburettor electromagnetic valve Flasher unit of parking brake warning lamp Direction indicator flasher unit Back window heater control circuit BODY Care of Body To preserve the attractive appearance of the car give constant attention to the car body surfaces To prevent scratches on the...

Страница 33: ...glasses first wash them with water solution of HMMCC Æ1liquid or Glass Autocleanser 2 30 cm3 per litre of water Never use gasoline or solvents to clean the body interior upholstery made of artificial leather Use neutral soap with water for the purpose then wipe the surfaces dry with soft rags or chamois leather Simultaneously thoroughly wipe with wet rags the rubber weatherstrips and the door part...

Страница 34: ...CE IN LONG TERM STORIGE The best method is to store the car in a dry dark and well ventilated room at a temperature of not below 5 C and a relative humidity of 50 70 In this case the storage battery and the car radio may be left in the car When the car is stored in a cold room remove the storage battery and the radio and keep them separately drain fluid from the washer tank If the cooling system i...

Страница 35: ...car on four supports so that the wheels are clear of the ground Position the supports under the brackets located near the sockets for the jack arm Deflate the tyres to 0 05 MPa 0 5 kgf cm2 10 Check the driver s tools for missing items coat them with a slushing compound and wrap in oiled paper 11 Put the cover on the car Maintenance of the car in storage once every two months consists in the follow...

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