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  • Why is the cylinder of the forklift poorly compressed and how to repair it?
    Why is the cylinder of the forklift poorly compressed and how to repair it?

    2022-12-30

    admin

    Are you wondering why your forklift cylinder is poorly compressed and how to troubleshoot it? Please follow the steps in the article to repair your forklift! Reason 1: Poor contact between valve and valve seat Troubleshooting method: Grinding the valve or valve seat Reason 2: Broken valve spring Troubleshooting method: replace the spring Reason 3: The valve clearance is wrong Troubleshooting method: Adjust valve clearance Reason 4: The cylinder head gasket is damaged Troubleshooting method: replace Reason 5: Cylinder liner, piston, piston ring wear too much Troubleshooting method: Repair or replace Reason 6: Leakage in the intake manifold Troubleshooting method: check intake manifold and gasket tighten nuts
  • Why does the engine run abnormally or stop halfway?
    Why does the engine run abnormally or stop halfway?

    2022-11-07

    admin

    What should I do if the engine runs abnormally or stops halfway, and the gasoline supply is not smooth Reason 1: Excessive fouling of petrol filter Troubleshooting method: cleaning up dirt Reason 2: Gas pump filter clogged Troubleshooting method: Cleaning the filter Reason 3: Gasoline Pipe Blockage Troubleshooting method: Blow through with compressed air Reason 4: Oil leaking from the gasoline pipe or fitting Troubleshooting method: Soldering or Tightening Reason 5: The oil level in the carburetor float chamber is too low Troubleshooting method: adjust appropriately Reason 6: Carburetor Orifice Blocked Troubleshooting method: Blow through with compressed air Reason 7: Gasoline pump valve leaking oil or damaged diaphragm Troubleshooting method: Overhaul the valve or replace the diaphragm
  • No engine idling!
    No engine idling!

    2022-11-07

    admin

    Why is the engine not idling? What accessory is malfunctioning? If you are not sure, please follow us to check your forklift. Reason 1: Excessive carburetor throttle opening Troubleshooting method: Adjustment Reason 2: Carburetor idle jet control failure Troubleshooting method: Adjust the idle adjustment screw Reason 3: Leak in the intake manifold Troubleshooting method: Overhaul the intake manifold or replace the gasket Reason 4: Individual spark plugs are damaged, excessive carbon deposits, or incorrect clearance Troubleshooting method: Replace or remove carbon deposits and adjust clearance Reason 5: Ignition time is too early Troubleshooting method: Adjust the ignition angle of the distributor Reason 6: Poor gasoline supply Troubleshooting method: See the corresponding fault analysis and troubleshooting in "The engine runs abnormally or deflects halfway" in this series of articles
  • Engine lacks power?
    Engine lacks power?

    2022-11-07

    admin

    Whether your forklift is also underpowered, please follow this article to check your forklift. If you find that you need to replace parts, please do not forget to contact Yuansong Trading. Reason 1: Ignition too late or too early Troubleshooting method: Adjust the ignition angle of the distributor Reason 2: The spark from the spark plug is too weak Troubleshooting method: See "Difficulty starting the engine" in this series of articles Reason 3: Bad cylinder compression Troubleshooting method: See the corresponding fault analysis and troubleshooting in "Difficulty in starting the engine" in this series of articles Reason 4: Engine overheating Troubleshooting method: See "Engine Overheating" Troubleshooting and Troubleshooting in this series of articles Reason 5: Poor gasoline supply Troubleshooting method: See the corresponding fault analysis and troubleshooting in "The engine runs abnormally or stops halfway" in this series of articles Reason 6: Fuel specification mismatch Troubleshooting method: switch to gasoline with the same specification Reason 7: Excessive spark plug gap Troubleshooting method: Adjustment Reason 8: Partially closed choke or insufficient throttle opening Troubleshooting method: Adjusting the manipulation mechanism Reason 9: Intake manifold leak Troubleshooting method: Overhauling the intake manifold and gasket Reason 10: Excessive wear on camshafts and tappets Troubleshooting method: replace Reason 11: Clogged Air Filter Troubleshooting method: cleaning and unclogging
  • Is there a knocking sound inside the engine?
    Is there a knocking sound inside the engine?

    2022-09-09

    admin

    What's wrong with the knocking sound inside the engine? Please follow the article to service your forklift. Reason 1: The ignition time is too early Troubleshooting method: Adjust the ignition advance angle of the distributor Reason 2: Excessive carbon deposits in the cylinder combustion chamber Troubleshooting method: remove carbon deposits Reason 3: The radiator is leaking or the amount of cooling water is too low Troubleshooting method: repair welding radiator or add cooling water Reason 4: Excessive scale buildup in the water jacket Troubleshooting method: Cleaning limescale Reason 5: Damaged water pump or loose fan belt Troubleshooting method: overhaul the water pump or adjust the tension of the fan belt Reason 6: The piston pin is too loose Troubleshooting method: Replacing the piston pin or bushing Reason 7: Excessive wear on pistons, piston rings, cylinder liners Troubleshooting method: overhaul and replace Reason 8: Excessive valve clearance Troubleshooting method: Adjustment Reason 9: Excessive wear of BEARING SET,CONNETING ROD and BEARING SET,CRANKSHAFT Troubleshooting method: Replace or repair bearing bushes Reason 10: Excessive wear on the timing gear Troubleshooting method: replace Reason 11: Too much clearance between valve stem and valve guide Troubleshooting method: Replace guide tube after valve stem chrome repair Reason 12: The position of the air manifold preheat valve is incorrect Troubleshooting method: Adjust by season Reason 13: Fuel specification mismatch Troubleshooting method: switch to gasoline of the same specification
  • Other possibilities for starter motor failure
    Other possibilities for starter motor failure

    2022-08-23

    admin

    Reason 1: Release the electromagnetic switch button, the starter continues to idle Troubleshooting method: Check switch contacts Reason 2: The gear does not mesh with the flywheel rim Troubleshooting method: The eccentric screw is not adjusted properly Reason 3: Mixed gas is too lean Troubleshooting method: close the choke valve to make the mixture richer Reason 4: Mixed gas is too rich Troubleshooting method: Open the choke wider or reduce the accelerator pedal to make the mixture thinner Reason 5: Cylinder liner soaked in gasoline Troubleshooting method: check replacement Reason 6: The petrol pump doesn't pump oil Troubleshooting method: check replacement Reason 7: Gasoline pipe is clogged or crushed Troubleshooting method: check replacement Reason 8: Bad Vaporizer Working Troubleshooting method: check replacement
  • Various causes and repair methods of engine overheating
    Various causes and repair methods of engine overheating

    2022-08-23

    admin

    If you are also troubled by the problem of engine overheating, maybe this article can bring you some help, please follow the article to check your forklift. Reason 1: Damaged water pump or loose fan belt Troubleshooting method: overhaul the water pump or adjust the tension of the fan belt Reason 2: Radiator, cylinder liner, cylinder block leaking or too little water Troubleshooting method: Weld repair holes and add cooling water Reason 3: Excessive accumulation of dirt on the radiator or engine water jacket Troubleshooting method: Wash and remove scale buildup Reason 4: Thermostat malfunctioning Troubleshooting method: Replacing a new thermostat Reason 5: Too little oil in the oil pan Troubleshooting method: Add oil to the specified standard Reason 6: The oil in the oil pan is too thin Troubleshooting method: Change the oil Reason 7: Excessive carbon deposits in the cylinder combustion chamber Troubleshooting method: Eliminate carbon deposits Reason 8: Ignite too late Troubleshooting method: Adjust the ignition advance angle of the distributor Reason 9: Water leaking from the cylinder head water manifold Troubleshooting method: replace Reason 10: Piston rings are worn out and a lot of exhaust gas is pouring into the crankcase Troubleshooting method: replace
  • Why is the spark too weak or unable to ignite?
    Why is the spark too weak or unable to ignite?

    2022-08-17

    admin

    Why is the spark too weak or unable to ignite? Are you also troubled by this problem, please follow our steps to repair your forklift. Reason 1: Ignition coil is damaged Troubleshooting method: Replacing the ignition coil Reason 2: There is no gap or poor contact at the disconnection point of the distributor Troubleshooting method: Adjust the gap or remove oxides on the electrocution Reason 3: The capacitor is damaged Troubleshooting method: Replacing the capacitor Reason 4: The high-voltage line is damaged or has poor contact Troubleshooting method: Replacing high voltage wires or fastening heads Reason 5: Damaged or loose low-voltage wires Troubleshooting method: Replace or tighten low voltage wires Reason 6: The ignition coil or distributor is wet Troubleshooting method: Remove and dry, but not too close to the fire Reason 7: Spark plug insulator rupture Troubleshooting method: Replacing spark plugs Reason 8: The spark plug is wet or carbon deposits on the electrode Troubleshooting method: drying or removing carbon deposits Reason 9: Spark plug electrode gap is too large or too small Troubleshooting method: Adjust the gap Reason 10: Insufficient battery power Troubleshooting method: Dismantle charging Reason 11: Broken distributor cover or distributor connector Troubleshooting method: replace Reason 12: Ignition timing is wrong Troubleshooting method: Check firing sequence Reason 13: Water in the cylinder head Troubleshooting method: Remove the cylinder head to remove the accumulated water, and tighten the cylinder head nut as required. If the cylinder head liner is damaged, it should be replaced
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