Suzuki Grand Vitara SQ416/SQ420/420WD

since 1998 of release

Repair and car operation

Suzuki Grandee of Wetar
+ General information
+ Maintenance and greasing
+ Heater, ventilation and conditioner
+ Steering
+ Suspension bracket
+ Wheels and tires
+ Forward driving shaft/bearing of a shaft. Oil epiploon
+ Driveshafts
+ Brake system
- Engines
   + Mechanical part of the G16 engine
   - Mechanical part of the J20 engine
      + General description
      - Routine maintenance
         Compression check
         Check of depression of the engine
         Check of pressure of oil
         Filtering element of the air filter
         Case of butterfly valves and inlet collector
         Collector of an exhaust system
         Cover of a head of the cylinder
         Oil pan and grid of the oil pump
         Oil pump
         Cover of a chain of synchronization
         Second chain of synchronization and natyazhitel of a chain
         First chain of synchronization and natyazhitel of a chain
         Cam-shafts and regulators of a klapanny gap
         Valves and head of the block of the cylinder
         Pistons, piston rings, rods and cylinders
      + Assembly fittings of the engine
      Special tool
      Necessary service materials
      Technical characteristics of the rotating moment of an inhaling
   + engine Cooling
+ Fuel system
+ ignition System
+ start System
+ release System
+ Transmissions
+ Coupling
+ Transfer
+ Forward and back differentials
+ Windows, mirrors, locks and security measures. Immobilizer
+ Electric equipment


Routine maintenance

Compression check


  1. Check pressure of compression on all four cylinders as follows.
  2. Warm up the engine.
  3. After a warming up stop the engine.

After a warming up of the engine put the gear shifting lever on "Neutral" (for And/t models put the gear shifting lever in the situation "R"), both establish the parking brake and block driving wheels.

  1. Disconnect a cable of an accelerator (3) from a clip (4) (only for vehicles with the left wheel).
  1. Disconnect couplings of the coil of ignition.
  2. Remove coils of ignition (1).
  3. Remove all spark plugs (2).
  4. Disconnect wires of a fuel injector from the coupling (5).
  1. Establish the special tool (компрессиметр) in a spark plug opening.
    • Special tool
      • (А): 09915-64510-001
      • (В): 09915-64510-002
      • (С): 09915-64530
      • (D): 09915-67010
  1. Switch off coupling (to reduce initial load of the engine) for M/t models, and press a pedal of management of supply of fuel against the stop completely to open a butterfly valve.
  1. Start the engine with completely charged accumulator and read the maximum instrument of pressure on компрессиметре.

To measure pressure of compression, start the engine, at least, on 250 revolutions per minute, by means of completely charged accumulator.

Technical characteristics pressure of compression


Pressure of compression

The normal

1400 kPas (14.0 kg/cm2, 199.0 пси)

The limiting

1200 kPas (12.0 kg/cm2, 170.0 пси)

The maximum deviation between two cylinders

100 kPas (1.0 kg/cm2, 14.2 пси)

  1. Execute points 9-11 on each cylinder to read four instruments.
  1. After check insert spark plugs (2) and coils of ignition (1).
  1. Connect couplings of the coil of ignition.
  2. Connect a cable of an accelerator (3) to a clip (4) (only for vehicles with the left wheel).