Causes and remedies of Petrol and Diesel Engine

Causes and remedies of Petrol and Diesel Engine, Trouble Shoot of Petrol and Diesel Engine

Petrol Engine causes and remedies:-

1. Engine Overheat -

• Fuel is dirty or low grade.
• Leaning of air - fuel mixture.
• Spark plug not having proper reach.
• Use of hot spark.
• Spark plug loosening up.
• Ignition Timing not corrected. 
• Any malfunction in the cooling or lubrication system. 
• Valve timing not correct. 
• Tappet clearance not corrected.
• Carbon deposition in the combustion chamber. 
• The compression of the engine is high. 
• Engine over load.
• Slipping the clutch. 
• Brake clinging to the drum.

Causes and remedies of petrol and diesel engine

 

2. Pulling Power or Pickup Weakness:-

• Fuel pipe leak or fuel air.
• Fuel being messy.
• Carburettor leak or malfunction.
• Air filter being dirty or blocked.
• Valve timing deterioration.
• Ignition timing deteriorate.
• Engine compression decreases.
• Engine overheating.

 

3. Pre - Ignition:-

• Higher fuel content in Air and Fuel.
• Use of hot spark plugs.
• Ignition Timing Deteriorate.
• Valve Timing Deteriorate.
• Deposit of carbon in Combustion Chamber.

Diesel Engine causes and remedies:-

1.    No Engine Start:-

• Battery failure or discharge.
• Starter motor malfunction.
• No fuel in the fuel tank.
• Fuel tank's breather hole shutting down.
• Fuel pipe Blocked somewhere.
• Fuel filter getting messy.
• The linkage of the governor is damaged.
• Accelerator linkage becoming loose.
• The timing of Fuel Injection Pump (FIP) worsens.
• Joint leakage of high pressure pipe line.
• Orifice hole block of the injector.
• Air filter getting messy.

         

2. Knocking Sound / Diesel knocking:-

• Using dirty fuel.
• Fuel injection timing deterioration.
• Let the injector nozzle remain open
• Orifice hole deform
• Breaking of the end of the big end.
• Accumulation of carbon in the combustion chamber.

3. Loss of Power:-

• Using dirty fuel.
• Fuel tank hole to be closed.
• Being in the fuel system.
• Piston ring wear.
• Cylinder head gasket deterioration.

Petrol and Diesel   Engine   -

1. Steering System:-

(a) Steering hard:-

• Reduced air in the tire.
• Adjustment of the steering gear is not correct.
• Bend or sagging of a linkage.
• Camber, Caster, and Tow - in are not correct.
• Bend or sagging of Chassis.

         

(b) Steering to be loose:-

• Steering linkage to be loose.
• Gap or Free play increases.
• Breaking of the bearing of the front wheel.
• Loosen mounting of steering wheel.

(c) Wandering or moving of the front wheel:-

• Less air in the tire.
• Free play is too much.
• Loosening of the bearing of the front wheel.

         

(d) Vehicle Pull to One Side:-

• No air in the tire.
• Breakage of one side ball bearing.
• One side brake shoe, sticking with the drum.
• Inability of the caster and camber.
• One side sabotage broken.
• The introduction of oil or grease on the brake liner.
• Brake Shoe's adjustment deterioration.
• Brake pipe line bend or block.

(e) Steering Shimmy:-

• More free play in linkage.
• No wheel balance.
• Less air in the tires.
• Caster malfunction.

 

2. Brake  System

(a) Air in Brake System:-

• Master Cylinder Deterioration.
• Brake shoe's adjustment deterioration.
• Lack of brake fluid.

(b) Voice from Brake or Noisy brake:-

• Brake shoe liner wear. 
• Brake shoe rivets to be loose. 
• Brake backing plate to be loose.

3. Lubrication  System:-

(a) Oil Consumption High:-

• Wear of Piston Ring. 
• Having oil dilution. 
• Engine over heat. 
• Wear of valve stem and valve guide. 
• Oil leakage. 

(b) Oil Pressure Low:-

• Reduction of oil.
• The grade of the oil is not correct. 
• The PRV of the oil pump is stuck in open condition. 
• Oil leakage.
• Oil Pressure Gauge Deterioration.

(c) Oil Pressure High:-

• Using more viscosity oil. 
• The PRV of the oil pump is stuck in a closed condition. 
• Oil Pressure Gauge Deterioration. 

(d) Blue Smoke from Exhaust:-

• Higher oil level in air cleaner. 
• Piston ring wear. 
• Wear of valve stem and valve guide. 
• Cylinder Wall's wear and tear. 
• Oil milling in Fuel.

4. Cooling System

(a) Engine Over heat:- 

• Lack of water in the radiator.
• Fan belt breakdown or free play becoming too much. 
• Radiator fins block. 
• Cooling system leak. 
• Temperature gauge deterioration. 
• Thermostat Valve Dismantling. 
• Waste of water pump. 
• Deterioration of V & PRV. 
• Ignition system or ignition timing deteriorate. 
• Freezing of furring in the cooling system.