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REPAIR MAINTENANCE OPERATION OF MOTOR VEHICLES
Nissan Primera (from 1990 to 1992, the year of issue)

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Nissan Primera
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Nissan
Primera
Introduction
Routine maintenance and servicing
The routine maintenance schedule
Introduction
Current Care
General information on setting up
Check of levels of liquids
Checking the status of the tire and the pressure therein
Replacing the motor oil and oil filter
Check the fluid level of steering hydrostrengthening
Checking automatic transmission fluid
The rotation of the wheels
Check and replacement of hoses of the engine compartment
Check the status, tension adjustment and replacement of belts
Check and adjust the idle speed of the engine and the level of CO
Checking the status of the battery, care it and gymnastics
Check and replacement of spark plugs
Check and replacement candle explosive wires, distributor cap and slider
Checking the oil level in manual gearbox
Check and adjustment of backlashes of valves
Checking and lubricating the throttle actuator rod
Replacing the air filter
Check the fuel system
Check the functioning of the cooling system
Checking the exhaust system
Checking the suspension components and steering
Check condition of protective covers of power shafts
Check the brake system
Check and replace wiper blades
Transmission Fluid Replacement
Drain, rinse and refill the cooling system
Replacement of the fuel filter
Changing gear oil manual transmission
Engine
Cooling and heating
The power supply system and exhaust
Electrical system motor
Manual transmission, differential and the main transfer
Automatic Transmission
Coupling and power shafts
Brakes
Suspension and steering
Body
Onboard electric
Applications
 


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Check and adjustment of backlashes of valves



Every year or every 20,000 km

Valve clearances on all engines regulated warmed up, but the engine does not have to work. To set the engine after repair work required valve clearances in the Specifications are given values for the cold state. However, all the gaps need to check valves and, after cooling the engine. If necessary, adjust the valve clearance must be carried out preparatory work, t. E. The cylinder head cover is removed, unscrewed the spark plugs, and so on. D.

Valve clearance is measured between the end of the pusher and cam camshaft. Adjustment is carried out as follows:

PERFORMANCE ORDER

  1. Rotate the crankshaft (if removed candle, it can be done in the V-belt) until the mark on the belt pulley will not coincide with TDC on the plate adjusting ignition. Piston cylinder 1 will be in the TDC position (see. Graphic below). If we now turn the shaft slowly from side to side, you will notice that the pusher of the first or fourth cylinder moves up and down, t. E. Valves overlap. If this occurs in valve cylinder 4, the piston of cylinder 1 is in the TDC position; Otherwise, turn the crankshaft by a half turn.
  2. Measure the valves of cylinder 1 and all valves are shown in the picture, and write down the clearance of each valve.

Measurement valve inlet camshaft (A) and the exhaust camshaft (B), when the piston of 1st cylinder is at TDC.

  1. To check the clearance probe must be inserted between the flat surface of the pusher and the cam, as shown in the illustration below. A sign is correctly adjusted gap is that first, the probe is pulled tight, then it is easier.
Checking valve clearance feeler gauge at the specified location.
  1. Rotate the crankshaft by a half turn to the piston of 4th cylinder is in TDC position. Check that the nozzles of both jaws of the fourth cylinder face up and check valves (illustration below) as described above.
Measurement gaps valve when the piston cylinder 4 is located at TDC.
  1. If the valve clearances are within an acceptable range, you can install the removed parts. Otherwise, the gap should be adjusted accordingly. It should be noted that, for the replacement of shims in the workshops of Nissan uses two specially adapted. In any case, there must be a strong magnetic rod. Tappet regulating valve must be pushed inward to eject the washer with a magnet.
  2. Rotate the crankshaft to the nose of the cam controlled valve facing up.
  3. Use a small screwdriver to turn the push rod to a notch on the edge of the point to the middle of the cylinder head.
  4. Now press the plunger inside a special tool or screwdriver and use a small screwdriver to move the puck to the side, so it can be removed with a magnetic bar. Assistant should thus hold down the plunger.
  5. Using a micrometer, measure the thickness of the washer. Although the puck and has the designation (TS 224 denotes the thickness of the washer 2.24 mm), the puck shall be measured, as it can be worn. From the values obtained on the basis of the following formula may be necessary to determine the thickness of the washer:
    • N = R + (0.37 M), - the intake valves
    • N = R + (0.40 M), - the exhaust valves
    ?N? - the thickness of a new washer, ?R? - the thickness of the old washers and "M" - the measured valve clearance.
  6. There are 50 shims with thicknesses from 2.00 to 2.98 mm and a pitch of 0.02 mm. From this list, select the washer closest to the calculated value of thickness. Designation thickness after installation should be at the bottom. When installing the washer again press the plunger in and install the washer in place with a magnet and a small screwdriver.
  7. All adjusted valve clearance after setting new goals recheck. As already mentioned, the gap should be checked for a warm engine.
  8. Install all the removed parts. Do not make a mistake when connecting the cables, ignition, as otherwise the engine will not start.




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