Nissan Maxima QX
+ Nissan Maxima brand Cars
+ Maintenance instruction
+ Settings and routine maintenance
- Engine
+ SOHC Engines
+ DOHC Engines
- General major maintenance of the engine
General information
Check of pressure of oil
Check of kompressionny pressure in cylinders
Diagnostics of a condition of the engine with use of the vacuum gage
Alternative versions of schemes of regenerative repair of the engine
Removal of the power unit from the car - preparation and precautionary measures
Removal and engine installation
Order of dismantling of the engine by its preparation for major maintenance
Dismantling of a head of cylinders
Cleaning and check of a condition of a head of cylinders
Service of valves
Assembly of a head of cylinders
Removal of shatunno-piston assemblies
Removal of a cranked shaft
Cleaning of the block of the engine
Check of a condition of the block
Honingovaniye of mirrors of cylinders
Check of a condition of components of shatunno-piston group
Check of a condition of a cranked shaft
Check of a condition and selection of loose leaves of radical and shatunny bearings of a cranked shaft
Check of a condition of camshafts, pushers of valves and bearings
Engine assembly order
Installation of piston rings
Installation of a cranked shaft and check of working gaps of radical bearings
Installation of a back epiploon of a cranked shaft
Installation of shatunno-piston assemblies and check of size of working gaps in shatunny bearings of a cranked shaft
Trial start and engine running in after major maintenance
+ Systems of cooling, heating
+ Power supply system and release
+ engine Electric equipment
+ Control systems of the engine
+ Transmission
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
Removal of the power unit from the car - preparation and precautionary measures
Before starting engine dismantle for the purpose of performance of its general or major maintenance, it is necessary to undertake some preparatory steps.Extremely the great value has presence of competently equipped worker of a platform. The platform should be rather spacious for placement on it of the car, a strong workbench / the assembly stand, and also necessary materials and the equipment. Optimum option is the big garage or a covered workshop. Simply equal platform with an asphalt or concrete covering as a last resort will approach.
It is necessary to take care also of the place equipment for storage of components removed from the engine, the tool and other materials. Best of all the easy folding rack will be suitable for this purpose with rather wide regiments.
Before starting dismantle of the power unit, clean a motor compartment and an external surface of the engine that will help to preserve in purity and an order the used tool.
Necessary condition of successful work is also existence of the winch, And-shaped or other suitable elevating equipment. Track, that the lift and a rigging corresponded according to the load-lifting characteristics to total mass of the power unit (the engine with transmission). Do not forget about need of strict observance of requirements of safety regulations.
If extraction of the engine is made by the amateur mechanic for the first time, it is necessary to get support of more skilled companion. In time the submitted council will allow to save time and to minimize risk of receiving a trauma or components/the equipment damage. In the course of unit extraction from the car there is a set of situations when separate procedures should be executed at the same time that it is often very difficult to make strengths of one person.
Try to plan all moments of the forthcoming work in advance. Prepare necessary tools and the equipment. To number of the special adaptations which are essentially facilitating performance of the forthcoming works and considerably of raising level of their safety, the set of wrenches and replaceable face heads with suitable (it is desirable ratchet) a drive, pair of strong wooden blocks, and also rags and solvent enough for removal of traces of fuel, oil and cooling liquid belong a powerful telezhechny jack with a hydraulic drive. At absence in private use of the elevating equipment before hiring the winch, try to perform beforehand all necessary preparatory work for the purpose of the maximum reduction of term of rent, and, therefore, and the material inputs connected with it.
Prepare for refusal of using the car for the period of carrying out repair work. Performance of a part of the procedures demanding high qualification of the personnel and use of the special equipment, it is necessary to charge to specialists of car-care center. Remember that automobile repair shops usually have very busy schedule of loading, and therefore it will be reasonable to see to it and agree about terms of implementation of your order in advance.
Work without hurrying up, in the organized manner, try not to break elementary safety regulations!