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Russian cars Lada, Niva, UAZ parts

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Lada Niva

40 years of popularity.

LADA NIVA 4 x 4

Below is a list of this dashing car technical development progress.

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Engine and systems

Engine values remain unchanged.

Versions Euro III and Euro IV  differ by the exhaust manifold and precious metal content inside the neutralizer.

Operation manual allows the application of fuel with OR-92, still some decrease of power factors can be seen.

New gaskets with elastic silicone roller that maintain their sealing characteristics within the whole life cycle of the car and do not require any retorque are used in order to exclude cooling fluid leakiness.

New imported filler block preventing the leakiness of the water pump is installed in order to enhance the operating life of the water pump bearing. Fuel supply system has been deeply modified; it foresees fuel filter transfer from the engine compartment to the bottom part of the car and implementation of quick disconnect couplings.

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Transmission

Coupling engagement of 200 mm is changed by the new enforced one of 215 mm made by the Valeo Company, which analogous to the coupling used for Chevrolet-Niva cars. Approved resource enhancement is equal to 120 thousand km. Performance reliability in complicated road conditions has been improved. Modified damping unit eliminates starting and gear change vibration, moreover, jointly with the new drive gear it decreases the pedal effort for 40 %, the necessity to adjust clutch linkage has been eliminated, and the “clutch bearing noise” defect has been removed.

Transfer gear is assembled applying silicone sealant, which has replaced fiberboard gaskets. Improved crankcase ventilation system RK with an open bleeder eliminates the pressurization inside the crankcase RK.

Cardan shafts are made by “Cardan” factory in Syzran, where the new equipment have been used; manufacturing of the above cardan shafts complies with the higher requirements for the overbalance and geometrical relationship, i.e. noises and vibration are reduced, the operability and cardan shaft life are significantly increased. 

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Improvements

  • Standardized suspension clutches of VAZ-2123
  • Standardized suspension clutches of VAZ-2123
  • New lower arms with silent-blocks of increased dimensions
  • Reduced steering offset and perturbing force level
  • Modified wheel alignment angles ensuring the enhanced stability
  • Lower arm axis of increased diameter (Ø18 instead of Ø16)
  • Trunnion balls in wrought body with polymeric bearing and increased pivot angle
  • Lengthwise optimized compression and rebound stroke bumpers
  • Shock absorbers of increased dimensions, optimized lengthwise in according to the damping characteristic
  • Enhanced arm of a top shock absorber mounting
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Silentblocks

Vulcanized silent-blocks of increased dimensions made by ANVIS-Rus Company will:

  • Increase silent-block life
  • Reduce road vibration transfer
  • Exclude „clicks and scraps“ defects
  • Exclude retorque necessity during the operation period
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Shock absorbers

  • Increase  dynamic duty of the suspension
  • Increase suspension movement
  • Reduce pitching
  • Improve the engine life and passing ability
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VAZ 21214 M

General improvement of wear characteristics:

  • Improvement of stability and handleability up to the level of Kalina and Priora cars
  • Increased comfort level due to the free suspension motion prior the compression bumper switching and enhanced general suspension movement
  • Increased front suspension component life
  • Decreased steering wheel force and impact shock transfer from the obstructions in roads
  • Modified front suspension nodes of VAZ-21214 will be used for Chevrolet-Niva in order to optimize and minimize product line
  • Change in kinematics due to the angle-wise installation of bottom links to the axis of bank
  • Vertically installed shock absorbers
  • Shock absorbers of increased dimensions and optimized characteristics

Angle-wise installation of bottom links to the axis of bank reduces the cross traverse movement and angular motions of the rear axle:

  • Reduces the “rear axle-taxing” with the help of the “Panara” link.
  • Minimizes hunting motions in case of single asperities.
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Brakes system

9 inch vacuum booster is installed instead of the 8 inch; the new aluminum brake master cylinder of 22,22 mm  is installed instead of the cylinder with 20,64 mm diameter.

Better wear characteristics

  • Brake pedal force is decreased for 30 % and the pedal travel for 15 %, clearances of a drive gear are eliminated, enhanced informativity
  • Increased braking capacity and braking stability due to the installation of TIIR 240 brake blocks
  • Enhanced system reliability and durability, increased haulage till the routine replacement of blocks
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Headlights

  • New direction indicator and marker lights instead of VAZ-2103 side light
  • Improved lighting technology
  • Improved outside appearance
  • Better integration into the jacket and front instrument panel is ensured due to the elastic edge
  • Improved tightness and resistance to external influences (humidity, heat-resistance)
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Dashboard

Installation of a complex instrument board VAZ-2115 with new facing:

  • Improvement of informativity and outside appearance
  • Additional functions – clock, environment temperature, voltage meter
  • Operation reliability enhancement, elimination of speedometer cable

Mirrors in plastic housing with increased visibility, prevention of blinding with headlamps:

  • Prevention of folding under the impact of dead wind blows
  • Reflective surface area is increased for 50 %
  • Modern outside appearance
  • Mechanical adjustment from the passenger compartment
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Rear suspension

Modification history:

  • Change in kinematics due to the angle-wise installation of bottom links to the axis of bank
  • Vertically installed shock absorbers
  • Shock absorbers of increased dimensions and optimized characteristics

Angle-wise installation of bottom links to the axis of bank reduces the cross traverse movement and angular motions of the rear axle:

  • Reduces the “rear axle-taxing” with the help of the “Panara” link.
  • Minimizes hunting motions in case of single asperities.
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And that's not all.

All modifications are not the last step in the planned life cycle of LADA 4×4 cars.

 

Double bearings of a transfer gear output spindles enables the sufficient decrease in endfloats and outruns, the new gaskets of a transfer gear and front and rear axle reducers with additional protective edge.

Dynamic vibration absorbers reduce vibration transfer from power-transmission plant to the car body.

And finally, the new interior, made by injection casting of a polypropylene instead of ABS-formed, separately foldable rear seats (both beds and backs), new convenient and safe clicks.

Rear seat structure will enable the fitting of 2 children-seats and will comply with the requirements of “Isofix” standard.   

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