Isuzu Trooper - Isuzu Trooper
1. Maintenance instruction
2. Maintenance
3. Engines
4. System of decrease in toxicity
5. Fuel system
6. Transmission and running gear
7. Suspension bracket and steering
8. Brake system
9. Body
10. Body electric equipment
11. Diagnostics of malfunctions
   11.1. Main malfunctions of coupling
   11.2. Main malfunctions of the manual transmission
   11.3. Main malfunctions of the driveshaft
   11.4. Main malfunctions of steering and suspension bracket
   11.5. Main malfunctions of the steering mechanism
   11.6. The main malfunctions of the steering mechanism with the hydraulic booster
   11.7. Main malfunctions of brakes
   11.8. Characteristic malfunctions of the engine and ways of elimination
   11.9. Characteristic malfunctions in the engine cooling system
   11:10. Characteristic malfunctions of a belt of the drive with a corrugated profile
   11:11. Characteristic malfunctions of a power supply system (carburetor engines)
   11:12. Characteristic malfunctions of signals of turn and emergency stop 11_13.htm
12. Electrical circuitries





Isuzu Trooper>> Diagnostics of malfunctions>> Characteristic malfunctions of the engine and ways of elimination

11.8. Characteristic malfunctions of the engine and ways of elimination

GENERAL INFORMATION

REASON
WAY OF ELIMINATION
Noticeable leak of oil
Damage of laying of the fuel pump or wrong installation of laying
Replace laying.
Violation of tightness of a prileganiye of a cover of a head of cylinders (sealant destruction) or wrong installation of a cover
Replace sealant, check a condition of the cover surfaces condensed by sealant.
Violation of tightness of a stopper of a maslozalivny mouth
Replace a stopper.
The leak is imperceptible, but the level of oil falls
Damage of laying of an oil filter or wrong installation of the filter
Replace an oil filter.
Damage of laying of the oil pallet, the wrong installation of the pallet or violation of integrity of sealant to the condensed places
Replace laying, or replace sealant, check a condition of the surfaces of the pallet condensed by sealant.
Damage of a forward epiploon or wrong installation of an epiploon
Replace an epiploon. Check existence of deformation of the demountable planes of a cover of a gear belt and a flange of the oil pallet.
Damage of a back epiploon or wrong installation of an epiploon
Replace an epiploon, check a condition of a flange of a back epiploon on the oil pallet. Check a condition of covers of back radical bearings, purity of drainage oil channels, existence of deformation on a sealing flute.
Damage of an epiploon of a cover of a gear belt, or wrong installation of an epiploon
Replace an epiploon.
Increase oil pressure because of pollution of the valve of ventilation of a case
Replace the valve.
Weak inhaling of a drain stopper, or a stopper thread is stripped
Repair or tighten.
Weakening of caps of oil channels in a back part of the engine
Grease caps with sealant and tighten.
Weakening of a back cap of the camshaft, or wrong installation of a cap
Establish a cap correctly, or replace, having established a new cap on sealant.
Damage of a sealing ring of the distributor of ignition
Replace a ring.
The raised oil consumption
Level of oil exceeds norm
Merge oil to normal level.
Oil with small viscosity is filled in
Fill in oil of the recommended type.
Sticking of the valve of ventilation of a case
Replace the valve.
Damage or wear of oil scraper caps of cores of valves, installation of caps of inappropriate type
Replace caps.
Wear of cores or the directing plugs of valves
Measure a gap in the directing plugs, if necessary repair.
Weakening of a maslootrazhatel in a cover of a head of cylinders
Replace a cover.

Breakage of piston rings

Replace the broken rings.
Teases on the piston
Replace the piston.
The gap in a joint of piston rings exceeds norm
Check a gap and repair.
The bedding of piston rings or gap between a ring and a flute in the piston exceeds norm
Check a gap and repair.
The wrong installation of compression rings (rings are turned)
Replace rings and correctly establish.
Wear of walls of cylinders
Repair.
Wrong arrangement of joints of piston rings
Place joints according to the scheme (see subsection 3.2.2.29).
Pressure of oil is absent
Low level of oil
Add to normal level.
The index of pressure or the sensor of pressure of oil are faulty
Replace.
The oil pump is faulty
Replace.
Sticking of the reducing valve
Remove and check a condition of the valve.
Contamination of the final channel of the oil pump
Check and clear the channel.
Pollution of an oil receiver or filter of rough cleaning
Check and clear.
Weakening of an inlet branch pipe of an oil receiver
Tighten or condense a branch pipe.
The raised gaps in radical or conrod bearings
Check gaps and if necessary repair.
Low pressure of oil
Low level of oil
Add to normal level.
The index of pressure or the sensor of pressure of oil are faulty
Replace faulty devices.
Fluidifying of oil because of bad quality or for other reasons
Merge oil and fill in oil of the recommended type.
Engine overheat
Establish and remove the engine overheat cause.
Weakening of a spring of the perepuskny valve, or sticking of the valve
Remove and check a condition of the perepuskny valve.
Air suction in a branch pipe of an oil receiver or a contamination
Remove a branch pipe of an oil receiver and the filter of rough cleaning. Check existence of a leak (fill in solvent).
Increase in gaps of the oil pump
Check gaps.
The raised gaps in radical or conrod bearings, and also in basic necks of the camshaft
Check gaps and if necessary repair.
Elevated pressure of oil
Viscosity of oil does not meet standard
Fill in oil of the recommended type.
The index of pressure or the sensor of pressure of oil are faulty
Replace faulty devices.
Weakening of a spring of the perepuskny valve, or sticking of the valve
Remove and check a condition of the perepuskny valve.
The increased noise in radical bearings
Insufficient lubricant
Check the level and pressure of oil.
The raised gaps in radical necks of a bent shaft
Measure gaps, if necessary repair.
The axial side play of a bent shaft is less than norm
Check a side play, if necessary repair.
Wrong inhaling of covers of radical bearings
Tighten bolts of covers with the set moment.
Weakening of a flywheel or the conducted clutch plate
Tighten bolts.
Easing or breakage of the extinguishing pulley.
Repair or replace.
The increased noise from conrod bearings
Insufficient lubricant
Check the level and pressure of oil.
Deposit on the piston
Remove a deposit from the bottoms of pistons.
The raised gaps in radical necks of a bent shaft
Measure gaps, if necessary repair.
Ovality of conrod necks of a bent shaft
Check gaps, replace or a proshlifuyta of a neck.
Wrong installation of a rod or cover of a rod
Repair.
Insufficient inhaling of covers of conrod bearings
Tighten bolts of covers with the set moment.
Knocks of pistons
The raised gaps between pistons and cylinders (on the piston there are traces of the increased wear)
Measure gaps, check the piston, execute repair.
Ovality or conicity of cylinders
Check diameter, chisel also to an otkhonninguyta cylinders.
Breakage of piston rings
Replace all rings.
Easing or jamming of piston fingers
Measure a gap between the piston and a finger, if necessary repair, or replace details.
Bend of rods
Check rods, if necessary you will correct or replace.
The gap in a joint of rings differs from norm
Check a gap, if necessary repair, or replace details.
Deposit on the piston

Remove a deposit from the bottoms of pistons.

The increased noise from the gas-distributing mechanism
Insufficient lubricant
Check: level and pressure of oil, purity of lubricant channels in bars of pushers, serviceability of hydropushers, purity of lubricant channels of the gas-distributing mechanism and gaps in pushers.
Wear or deformation of bars of pushers
Replace bars.
Wear of yokes of valves or roller of yokes
Replace worn-out details.
Contamination of hydropushers foreign impurity
Clear pushers.
Leak in hydropushers
Replace hydropushers.
Wear of a working surface of hydropushers
Replace hydropushers, check a condition of cams of the camshaft.
Breakage or deformation of springs of valves
Replace springs.
The raised gap between the directing plug and a core of the valve
Check a gap, if necessary repair.
Bend of cores of valves
Replace valves.
Weakening of yokes
Tighten bolts a dynamometer key.

Ovality of a saddle of the valve

Pereshlifuyte of a saddle and valves.
There is no valve cracker
Establish a cracker.
The increased friction of bars of pushers, zadevaniye of bars for a head of cylinders
Remove a head of cylinders and clear.
Level of oil is higher than norm (on 4-cylinder engines)
Restore the normal level of oil.