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Cause of defect
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Way of elimination
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The engine is not started up
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There is no pressure of fuel in a stage:
Are littered топливопроводы;
The fuel pump is faulty;
The fuel filter is littered;
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Wash out and blow a fuel tank and топливопроводы;
Replace the pump;
Replace the filter;
Check up a regulator, faulty
Replace
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The ignition system is faulty
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«The control system of the engine» see
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The engine works unstably or глохнет idling
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Pressure of fuel does not suffice in
топливопроводе the engine ("stage")
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The Engine see «is not started up»
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The idling regulator is faulty
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Replace an idling regulator
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Подсос air through ventilation hoses
crankcase the engine and a hose connecting the inlet pipeline with the vacuum
The amplifier of brakes
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Tighten collars of fastening,
The damaged hoses replace
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Backlashes between levers and camshaft cams are broken
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Check up hydrosupport, not serviceable replace
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The ignition system is not serviceable
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«The control system of the engine» see
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The engine does not develop a total power and does not possess sufficient приемистостью
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Incomplete opening throttle заслонки
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Adjust drives throttle заслонки
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The gauge of position throttle заслонки is faulty
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Replace the gauge
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Pressure of fuel in топливопроводе does not suffice engine ("stage")
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The Engine see «is not started up»
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The air filter is polluted
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Replace filtering element
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The ignition system is faulty
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«The control system of the engine» see
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Backlashes between levers and camshaft cams are broken
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Check up hydrosupport, not serviceable replace
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Insufficient compression - more low 1 МПа (10 kgs/sm2):
The lining of a head of the block is punched
Cylinders;
Burn-out of pistons, breakage or
залегание piston rings;
Bad прилегание valves
To saddles;
Excessive deterioration of cylinders and piston rings
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Execute the following:
Replace a lining;
Clear rings and flutes of pistons of a deposit, the damaged rings and the piston replace;
Replace the damaged valves, grind saddles;
Replace pistons, chisel and отхонингуйте cylinders
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Knock of radical bearings of a cranked shaft
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Usually knock of deaf tone, metal. It is found out at sharp opening throttle заслонки idling. Its frequency increases with increase
Frequencies of rotation of a cranked shaft. The excessive axial backlash of a cranked shaft causes knock sharper with the non-uniform intervals especially appreciable at smooth increase and reduction of frequency of rotation of a cranked shaft
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Insufficient pressure of oil
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Insufficient pressure of oil idling »see«
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Bolts of fastening of a flywheel are weakened
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Tighten bolts the recommended moment
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The increased backlash between necks
And loose leaves of radical bearings
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Прошлифуйте necks also replace
Loose leaves
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The increased backlash between persistent half rings and cranked shaft
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Replace persistent half rings new
Or the increased thickness
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Knock шатунных bearings
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Usually knock шатунных bearings is sharper than knock of the radical. It is listened idling the engine at sharp opening throttle заслонки. The knock place is easy for defining, disconnecting by turns spark plugs
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Insufficient pressure of oil
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Insufficient pressure of oil idling »see«
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Excessive backlash between шатунными
Necks of a cranked shaft and loose leaves
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Replace loose leaves and прошлифуйте necks
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Knock of pistons
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This knock usually not sonorous, muffled; it is caused by piston "palpation" in the cylinder. Is better it it is listened at small frequency of rotation of a cranked shaft and under loading
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The increased backlash between pistons and cylinders
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Replace pistons, chisel and отхонингуйте cylinders
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Excessive backlash between the piston
Rings and flutes on the piston
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Replace rings or pistons with rings
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Knock of inlet and final valves
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Work with the increased backlashes in клапанном the mechanism causes characteristic knock, usually with uniform intervals; its frequency less than any other knock in the engine as valves are put in action from a camshaft which frequency of rotation twice is less than frequency of rotation of a cranked shaft
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The increased backlashes between levers
And camshaft cams
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Check up hydrosupport, not serviceable replace
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Breakage клапанной springs
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Replace a spring
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Excessive backlash between a core and directing the valve
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Replace the worn out details
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Deterioration of cams of a camshaft
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Replace a camshaft and levers of valves
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Excessive noise of a chain of a drive of a camshaft
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From the general noise of the engine noise of a chain of a drive of a camshaft is allocated
At occurrence of backlashes between elements of gearing also it is accurately listened at small frequency of rotation of a cranked shaft
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Ослабла a chain owing to deterioration
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Replace a chain
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Boot breakage натяжителя chains or
успокоителя
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Replace a boot натяжителя or успокоитель
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It is faulty гидронатяжитель chains
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Replace гидронатяжитель
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Insufficient pressure of oil idling on the heated-up engine
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Hit under редукционный the valve
Pressure of oil of extraneous particles
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Clear the valve of extraneous particles
And agnails, wash out the oil pump
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Gear wheels of the oil pump are worn out
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Repair the oil pump
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Excessive backlash between loose leaves
And radical necks of a cranked shaft
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Прошлифуйте necks also replace loose leaves
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Excessive pressure of oil upon the heated-up engine
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Jamming редукционного the valve of pressure of oil
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Replace the valve
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The raised expense of oil
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Podtekanie oils through consolidations
The engine
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Tighten fastenings or replace linings and epiploons
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Deterioration of piston rings and pistons or
Engine cylinders
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Chisel cylinders and replace pistons and rings
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Breakage of piston rings
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Replace rings
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Закоксовывание маслосъемных rings or cuts in flutes of pistons
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Clear cuts and rings of a deposit
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Deterioration or damage маслосъемных
Caps of valves
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Replace маслосъемные caps
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The raised deterioration of cores of valves or directing plugs
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Replace valves, repair a head of the block of cylinders
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The raised expense of fuel
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The raised resistance to movement
The car
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Check up and adjust pressure in tyres, brake system, corners of installation of wheels
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The ignition system is faulty
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«The control system of the engine» see
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Atomizers are faulty
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"Power supply system" see
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Подтекание fuel in connections
Pipelines
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Tighten connections of pipelines
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Use of bad quality fuel
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Fill in recommended fuel
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Weak tension of a belt of a drive of the pump and the generator
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Adjust a belt tension
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Insufficient quantity of a liquid
In cooling system
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Add cooling liquid in cooling system
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The external surface of a radiator is strongly polluted
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Clear an external surface of a radiator a water stream
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The thermostat is faulty
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Replace the thermostat
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The valve of a stopper of a radiator is faulty,
Pressure of opening is less 0,05 МПа
(0,5 kgs/sm2)
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Replace a stopper
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The pump of a cooling liquid is faulty
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Check up pump work, replace it or repair
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Fast falling of level of a liquid in a broad tank
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The radiator is damaged
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Repair a radiator or replace
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Damage of hoses or linings to connections of pipelines
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Replace the damaged hoses or linings
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Podtekanie liquids from the heater crane
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Replace the crane
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Collars of hoses are poorly tightened
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Tighten collars
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Podtekanie liquids through an epiploon of the pump of a cooling liquid
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Replace an epiploon
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The stopper or lining of a stopper of a radiator is damaged
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Replace a stopper
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The lining of a head of the block is damaged
Cylinders
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Replace a lining
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Podtekanie liquids through microcracks in the block or in a head of the block of cylinders
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Check up tightness of the block and a head of the block of cylinders, at detection of cracks replace the damaged details
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Podtekanie liquids through microcracks in the case or a cover of the pump of a cooling liquid, a broad tank or an inlet pipe
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Check up tightness, at detection of cracks the damaged details replace; the insignificant leak is supposed to be eliminated the additive in cooling liquid герметизатора type НИИСС_1
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