Saab 9-5

Since 1997 of release

Repair and car operation

Saab 9-5
+ Cars Saab 9-5
+ Controls and operation receptions
+ Options and car routine maintenance
- The engine
   The general information and preparatory operations
   Check компрессионного pressure
   Check of the engine by means of the vacuum gauge
   - Repair of 4-cylinder petrol engines
      Reduction of the piston of the first cylinder in position of the top dead point (ВМТ)
      Removal and installation of a head of cylinders and натяжителя приводной chains
      Removal and installation of camshafts and valves, estimation клапанных backlashes
      Check and replacement приводной chains
      Replacement of a belt of a drive of auxiliary units
      Replacement of epiploons and pulley of a cranked shaft
      Replacement of the oil pump
      Removal and pallet installation картера
      Removal and installation of an arm of the filter, the thermostat and редукционного the valve of system of greasing of the engine
      Check of pressure of impellent oil
      Removal and installation of the power unit
      Removal and installation of a cover of drive ГРМ
      Check and replacement of a chain of a drive of balancing shaft and their asterisks
   + Repair of 6-cylinder petrol engines
   + Repair of 6-cylinder diesel engines
+ Systems of cooling of the engine, heating, ventilation and air conditioning
+ The power supply system and release of the fulfilled gases
+ Systems of an electric equipment of the engine
+ Manual box of a gear change
+ Automatic transmission
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment

Removal and installation of camshafts and valves, estimation клапанных backlashes

The method of removal of valves from the removed head of cylinders is more low described. The removed components it is necessary to have so that then them it was possible will establish on former places. The repair sizes of components of a head of cylinders are specified in Specifications. Repair procedures are not considered in view of their typicalness.

Damage of the cylindrical surfaces interfaced to pushers of valves is not supposed.


    Remove a head of cylinders (see Has undressed Removal and installation of a head of cylinders and натяжителя приводной chains). Remove covers of bearings of camshafts and take shaft from a head of cylinders.

In last turn it is necessary to remove covers of the bearings nearest to loaded pushers of valves.

    Take from a head of cylinders pushers and establish on their place protective caps not to damage cylindrical surfaces of a head of cylinders interfaced to pushers. Compress клапанную a spring by means of the special adaptation and remove from the valve crackers. Remove spring plates, a spring and маслосъёмный a cap. Take the valve from a head of cylinders. Measure the sizes of camshafts and components клапанного the mechanism. If necessary replace defective parts. Damaged маслосъёмные caps replace.

Installation is made in return sequence. Before installation of pushers estimate клапанные backlashes – in this case this distance from an end face of a core of the valve to a saddle of the bearing of a camshaft.


    For an estimation клапанного a backlash lay the special adaptation on saddles of two bearings of a camshaft. Make sure that щуп on the maximum length (20.5 mm) gets to a valve core, and on the minimum length (19.5 mm) does not get to it, i.e. the end face of a core of the valve should act on the size lying between lengths щупа (20.2 mm). Adjustment клапанного a backlash is made by means of machining of a core of the valve (if result of measurement below minimum) or its saddles (if result of measurement above maximum).
    Tighten covers of bearings, since near to what cams are turned downwards.

Covers of bearings are numbered from 1 to 5 on the inlet party and with 6 to 10 on the final. Black bolts have the channel for greasing, and they should be established from outside spark plugs.

    In summary level labels on camshafts with labels on covers of bearings.