Views: 5 Author: Site Editor Publish Time: 2021-08-18 Origin: Site
4, the engine is insufficient
Fault mode | Method of exclusion |
1, intake jam | Check air filters, intake pipes and clean or replace |
2, boost pressure is insufficient | Repair or change exclusion |
3, supercharger working abnormalities | replace |
4, fuel oil return manifold throttle | Clear blockage |
5, fuel quality difference | Relieve fuel, clean oil road, refuel |
6, the oil housing is too high | Emissions to suitable oil surface |
7, air in the fuel system | Tighten each joint, exhaust |
8, the fuel supply system partially blocks | Inspection |
9, the valve is not adjusted | Re-adjusted according to regulations |
10, exhaust gas discharge resistance | Inspection |
11, the accelerator pedal opening degree is not enough | readjust |
5, the fuel consumption is too large
Fault mode | Method of exclusion |
1, intake system blockage (mainly air filter, accompanying black smoke) | Check air filter, intake pipeline cleaning |
2, poor fuel quality | Replace fuel as required |
3, fuel pipeline oil leakage | Check and repair |
4, injector atomization is poor (with black smoke) | Check adjustment fix |
5, gas supply or oil supply is incorrect | Adjust the valve clearance and supply advance angle according to the regulations |
6, boosting system pressure is insufficient | Check exclusion line and connection |
7, supercharger working abnormalities | Check |
6, engine oil consumption is too large
Fault mode | Method of exclusion |
1, the cooling liquid is too low (water shortage) | Check to repair leakage coolant |
2, water pump and fan belt too loose | Check to replace the tensioner |
3, hose bending | Check |
4, thermostat failure | Check |
5, indicating the failure of the instrument | Check or replace |
6, the oil housing oil is too low or lack of oil | Check the oil surface, repair the oil, refuel |
7, long-term use of ordinary water as a coolant | Cleaning water jacket, remove scale |
7, engine oil consumption is too large
Fault mode | Method of exclusion |
1, out of the oil | Inspection |
2, add too much | Emissions suitable oil surface |
3, oil cooler oil leakage | Inspection |
4, turbocharger oil leakage into intake pipes or exhaust gas | Repair or replace the supercharger |
5, the piston ring is unreasonable | Repair or replace (requires compression check) |
This article is reproduced from: Dongfeng Truck Company Heavy Car Factory - \"Military Vehicle Dongfeng off-road vehicle Adjustment and Maintenance Manual\"