Nissan Patrol, Ford Maverick

1988-1997 of release

Repair and car operation

Nissan Patrol and Ford Maverik
+ Cars of the Nissan Patrol and Ford Maverick series
+ Diagnostics of malfunctions
+ Settings and routine maintenance
- Engine
   - Engine of 4.2 l
      Removal and engine installation
      Removal, dismantling, check of a condition and installation of assembly of yokes and bars of pushers
      Removal and installation of the inlet pipeline
      Removal and installation of a final collector
      Service of a head of cylinders
      Removal, check of a condition and service of components of a drive of the gas-distributing mechanism (chain and asterisks)
      Removal, check of a condition and installation of a camshaft and pushers
      Removal and installation of the pallet of a case and maslozabornik of the oil pump
      Service of the oil pump
      Replacement of epiploons of a cranked shaft
      Service of shatunno-piston assemblies and mirrors of cylinders
      Service of a cranked shaft and radical bearings
      Flywheel service / driving disk
      Removal and installation of support of the power unit
   + Engine of 3.0 l
+ Systems of cooling, heating and air conditioning
+ the Power supply system and production of the fulfilled gases
+ Systems of decrease in toxicity of the fulfilled gases
+ Systems of electric equipment of the engine
+ Transmission
+ Coupling
+ Brake system
+ Forward and back bridges, running gear and steering
+ Body
+ Onboard electric equipment

Removal, dismantling, check of a condition and installation of assembly of yokes and bars of pushers

The design of a head of cylinders does not allow to make removal of pushers until the head and its laying will be removed. In a type of the aforesaid procedure of removal of pushers is considered separately in the Section devoted to service of a camshaft and pushers.

Removal and dismantling


    Disconnect a negative wire from the battery. Remove air purifier assembly.

In order to avoid hit in the carburetor of garbage and extraneous subjects cover his mouth with rags.

    Mark and disconnect all hoses and the cables disturbing to removal of a cover of a head of cylinders. Gradually, on a turn quarter for each approach, weaken bolts of fastening of a cover, - begin with external bolts and move inside. Uncover heads of cylinders, having taken care of that dirt and garbage did not get to the engine. By means of a screw-driver or a wrench weaken screws of adjustment of gaps of all valves before complete removal of loading from valves. Gradually, moving outside inside, weaken bolts of pedestals of an axis of yokes. Повращав bars of pushers, liberate them from yokes and carefully remove assembly of the last. Take bars of pushers, putting them according to placement on the engine, - it is most correct to make for the ordered storage of bars of pushers a special sample lath of a dense cardboard. Remove components from an axis of yokes, putting in that order in what they took place on assembly.

Cleaning and condition check


    Wash out all removed components in suitable solvent, then carefully dry, blowing in the compressed air. Check passableness of all маслотоков assembly components, blow channels and openings the compressed air. Check all components on existence of signs of wear and mechanical damages. Replace defective details. Check a condition of working surfaces of the yokes contacting to cores of valves. In case of identification of signs of excessive wear replace a defective yoke. Small mechanical damages to a type of scratches can be eliminated with the help an oselka for editing with oil. By means of a suitable micrometer measure internal diameters of axial openings of yokes and diameters of an axis of yokes on sites of placement of the last. By subtraction from the first results of the second define landing gaps of yokes. In case of excess by gaps of admissible values (see size tables and adjustments at the end of the Management) replace worn-out components.

Assembly and installation

Assembly and installation are made upside-down.


    Before the assembly beginning plentifully grease working surfaces of yokes and their axis with impellent oil. Put on assembly components an axis of yokes in a former order (components of a drive of valves are shown on an accompanying illustration).
1 — assembly of an axis of yokes
2 — bolts
3 — washers
4 — yokes
5 — pedestals
6 — a spring
    Grease end faces of bars of pushers with impellent oil and insert bars into the nests in a head of cylinders.
    Establish assembly of yokes in a head of cylinders (see an accompanying illustration) and by hand tighten fixing bolts. Track, that spherical tips of screws of all yokes correctly got to nests of saddles of the pushers.
    In some stages tighten bolts of fastening of pedestals with demanded effort. On the cold engine make installation of gaps of valves. Temporarily establish a cover of a head of cylinders and an air purifier and, having started the engine, warm up it to normal working temperature. Check installation of klapanny gaps on the heated-up engine, in case of need make adjustment. Uncover heads of cylinders and again establish it with new laying, a mouth of the gulf of impellent oil forward. Screw fixing bolts and tighten them in two stages, moving on a spiral from internal outside. Connect into place all hoses removed in the course of removal and cables. Establish into place air purifier assembly. Start the engine and check it on existence of signs of leakages of oil.