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

Engine

Engine of 4.2 l

General information

The engine belongs to 6-cylinder ryadny units with the top arrangement of the klapanny mechanism (ohv), a cross line head of cylinders from an aluminum alloy and a pig-iron case.

The cranked shaft is established in seven radical bearings the sixth of which is persistent, being responsible for size axial люфта in bulk.

Pistons are equipped top and bottom with kompressionny rings and a 3-section maslosjemny ring.
Piston fingers have floating landing in heads of rods and in a tightness are filled in pistons. Fastening of fingers is provided with lock rings.

The camshaft rotates in seven bearings and is equipped with the built-in driving gear wheel of the distributor. The driving asterisk of a camshaft is established on its forward end. The drive of a camshaft is carried out from cranked by means of chain transfer (with a roller chain). Frequency of rotation - polovinny concerning that for a cranked shaft.

By means of the second chain the drive from a cranked shaft of the oil pump is carried out.
Greasing of gear wheels of a drive of the gas-distributing mechanism and chains is carried out through the special nozzle established in a forward part of the block of cylinders.

The drive of valves is carried out by means of firm pushers, bars of pushers and cast yokes. Yokes are put on the general axis and are greased through drillings in its pedestals.

Replaceable directing plugs of valves are pressed in a head of cylinders and equipped with the maslootrazhatelny caps preventing supply of superfluous oil against demanded quantity.

The oil pump of rotor type is established in a forward part of the block of cylinders. The cam located in a back part of the oil pump puts in action the fuel pump. Pressure of oil is supported at the set level by means of the podpruzhinenny reduktsionny valve located in the case of the oil pump.

The case of the engine is tightly jointed with a dome of the coupling/converter of rotation that allows to prolong starter and coupling service life (on models from RKPP). In the lower part of a dome of coupling the stopper allowing periodically to make draining of accumulating in a case of moisture/oil is provided.