Nissan Patrol, Ford Maverick
1988-1997 of release
Repair and operation of the car
Nissan Patrol and Ford Maverik
+ Cars of the Nissan Patrol and Ford Maverick series
- Diagnostics of malfunctions
Failure diagnostics at start of the engine in road conditions
Diagnostics of the general mechanical engine failures
Diagnostics of malfunctions of the cooling system
Diagnostics of malfunctions of systems of heating and air conditioning
Diagnostics of malfunctions of a power supply system
Diagnostics of malfunctions of coupling
Diagnostics of malfunctions of manual transmission
Diagnostics of malfunctions of automatic transmission
Diagnostics of malfunctions of the forward bridge
Diagnostics of malfunctions of the back bridge
Diagnostics of malfunctions of steering
Diagnostics of malfunctions of a forward suspension bracket
Diagnostics of malfunctions of a back suspension bracket
Diagnostics of malfunctions of the brake system
Diagnostics of malfunctions of systems of electric equipment of the engine
Diagnostics of malfunctions of onboard electric equipment
Diagnostics of a condition of tires and their protectors
+ Settings and routine maintenance
+ Cooling systems, heating and air conditioning
+ A 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
+ Brake system
+ Forward and back bridges, running gear and steering
+ Onboard electric equipment
Diagnostics of the general mechanical engine failures
There are admissions of ignition during the operation of the engine on single turns
Leak of air through laying of the inlet pipeline takes place. Check, having missed the mark with oil or a moisture absorber pipeline joints at the working engine and listen to the hissing indicating a leak source.
Adjustment of valves (engines of 4.2 l) is broken. Check, in case of need make correction of gaps.
Integrity of laying of a head of cylinders is broken. Make check of compression pressure in cylinders, in case of need replace laying.
Takes place прогар plates of valves or their saddles in a head of cylinders. Check compression pressure, in case of need make capital repairs of a head.
Piston rings are broken or worn-out. Check compression pressure, in case of need replace rings.
Valvate springs weakened or are worn out. Uncover a head of cylinders and check a condition of valvate springs.
The valvate mechanism during the work publishes unusual noise
Adjustment of gaps of valves (engines of 4.2 l) is broken. Check, execute adjustment.
Valvate springs weakened or are broken. Uncover a head of cylinders and check a condition of valvate springs. In case of need make replacement.
Assemblies of yokes are worn-out or damaged. Replace defective components.
Hydraulic pushers (engines of 3.0 l) are faulty. Replace defective pushers.
The directing plugs of valves are worn-out. Execute capital repairs of a head of cylinders.
Working ledges of cams are worn-out. Check a condition of the camshaft, in case of need make replacement.
The noise published by bearings of the lower heads of rods take place
Oil supply is broken. Check oil level in the pallet of a case and a condition of the oil pump and reducing valve. Replace an oil filter.
The gap in bearings is excessive. Replace inserts, check a condition of conrod necks of a bent shaft, in case of need execute their pro-point.
Too liquid oil is filled, or there was its fluidifying gasoline or water. Replace motive oil, the gulf is fresher than the required grade. Try to reveal and remove the fluidifying cause.
Oil pressure fell. Check serviceability of the reducing valve, a condition of a spring. Also check serviceability of functioning of the perepuskny valve of an oil filter.
There was a shift of conrod bearings. Correct rods, in case of need make replacement of inserts.
The noise published by radical bearings (obvious) take place
Fastening of a flywheel weakened. Tighten bolts with the required effort.
Oil pressure fell. Check gaps in radical bearings. Check a condition of the oil pump and reducing valve. In case of need make recovery repair of the pump.
The axial side play of a bent shaft is excessive. Replace radical bearings.
There was an ovality of necks of a bent shaft. Pierce necks and replace bearings (on the repair size with belittling).
Oil supply is broken. Add oil in a case, having brought its level to the required value.
The consumption of motive oil is excessive
Oil leak takes place. Check a condition of laying and epiploons. In case of need make replacement.
Maslootrazhatelny caps of cores of valves are damaged or worn-out. Replace defective caps.
The gap of landing of cores of valves in the directing plugs is excessive. Replace guides and/or caps.
Piston rings are worn-out or broken. Replace rings on all pistons. Piston rings are too hardly put or jammed in the flutes. Replace rings, clean flutes.
Cylinders, pistons and piston rings are excessively worn-out. Pierce and/or an otkhoninguyta cylinders, replace pistons and/or piston rings.
Compression rings are incorrectly established, oil scraper rings are broken or jammed. Make replacement.
Pressure of motive oil fell
Oil level fell in the case pallet. Check, in case of need add.
Too liquid oil is filled, or there was its fluidifying. Replace oil and remove the fluidifying cause if that took place.
The reducing valve is jammed, or its spring is broken. Remove the cause of jamming or replace the broken valvate spring.
The gap in bearings is excessive. Replace inserts, or (in case of need) pierce necks of a bent shaft.
Wear of components of the oil pump is excessive. Make recovery repair, or replace the pump.
The engine is not turned
The starter is jammed. Remove a starter. Check a state and (in case of need) replace the damaged drive and/or a gear wreath of a flywheel.
The engine klinit with a simultaneous overheat. Remove the engine and disassemble it. Check a condition of internal components, make necessary replacements.
In cylinders moisture at the expense of a water podsasyvaniye to the highway of an intake of air (got for example during a crossing through the river). Turn out spark plugs and dry cylinders.
Water gets to cylinders through laying of a head of cylinders or a crack in a head/block body. Remove a head of cylinders. If cooling liquid filters through laying, check planeness of the interfaced surfaces of a head and the block. In case of need make a pro-point. At detection of cracks the head/block should be replaced.
Damage of a bent shaft or components of conrod and piston groups takes place. Remove and disassemble the engine. Examine components, make necessary repair / replacement.
Integrity of a plate of the valve owing to an overheat or fatigue deformation is broken. Remove a head of cylinders and check a condition of its components. Make necessary recovery repair or replacements.
Turn out candles and cut off power system of ignition as it is described in the Section devoted to check of compression pressure (setup of the engine) in the Head Nastroyki and routine maintenance.
Turn the engine manually, having pushed out from it as much as possible water.
Then turn the engine a starter - try not to bend over the engine block as water can be pushed out through candle openings with a decent pressure. Check motive oil, the distributor, the carburetor, the air cleaner, the fuel filter and the fuel tank for existence of traces of presence of moisture in them. If moisture is not found, dry and screw to the place of a spark plug and start the engine.
When jamming the engine as a result of an overheat owing to falling of level of cooling liquid bearings, pistons, etc. components unambiguously fail. Though sometimes the engine also manages to be started successfully after an ostuzheniye and replacement of oil and cooling liquid, such deviations as the raised oil consumption, oil pressure drop usually are soon shown, the level of noise during the operation of the engine, etc., depending on degree and the nature of damages increases.
At infiltration of cooling liquid in cylinders through laying of a head, or if compression pressure in two next cylinders low, is extremely important to check carefully interfaced surfaces of the block and a head of cylinders for planeness violation. Through thinnesses of laying or a crack in the head/block the amount of water, sufficient for engine failure from a provorachivaniye, can filter into cylinders. Usually such situation is followed by difficulties at start, admissions of ignition, a steam-out from an exhaust pipe, and also falling of level of cooling liquid.
Leak of gases in the cooling system can be revealed by removal of a cover of a radiator and observation of bubbles in the top tank of a radiator at the engine working with turns of bystry idling or without removal of a cover of a radiator on excessive inflow from a broad tank.