Different Causes Of The Engine Piston Failures
Overheat Seizure: Piston seizure on major axis,due to the engine overheating,the car engine loss power and can not be turned to start.To prevent the engine of this problem you must check and connect cooling system, not forgetting the water pump and the fan belt tension.
Rings Lands: Is fracture of the piston rings lands.The fracture progressively widens meaning the rings land has broken from he top to the bottom. Is the excessive combustion chamber pressure,incorrect ignition setting. Increased compression ratio and the pre-ignition and detonation engine lugging. The symptoms is the engine loss power. Oil consumption, smoking and the engine is noisy.The cures is to establish cause and correct you must replace damage parts.
One Side Skirt Seizure:The piston seizure or scuffing of thrust face.The causes is the oil starvation, dry assembly.The engine noise and some power loss.This the symptoms you see on your car.You must check and correct as required , oil pump, oil pressure valve, oil level in sump and cylinder bore.And fit new piston is the best remedies for your car.
Misalignment: Incorrect(diagonal)skirt contact. Misalignment causes is the misalignment conrod or small end bush. the end thrust due to excess crankshaft float.The only symptoms you going to detect on your is the oil consumption. The remedies for this problem is to check and correct con-rod, small bush end alignment, also crank end-float. That mean new piston should be fitted.
Abrasive Wear : Is vertical scratching or scuffing of the piston skirt. Severe peripheral ring wear and scuffing. Unusually oil consumption that mean you adding oil engine to your car. The remedies to this problem ensure air and oil filters are clean and fitted with correct filter elements. If the engine went for overhaul, must clean all engine components and oil ways. On this piston failure, new piston and new bearing should be fitted.
Insufficient Clearance : The effect is the piston seizure, skirt seizure marks may appear smooth and polished.The causes of the insufficient running clearance. You going to feel your car engine does not develop normal power and the engine may overheat. The remedies for your car engine is to check cylinder bore sizes, rebore or hone to the correct diameter.
Circlip Ejection: An erosion of the piston skirt adjacent to gudjeon pin holes, the material sometimes appears melted. And the causes is the foreign material assembled with piston,in pin bore. Used circlips refited.Can be also an incorrect fitting of circlips.The end trust transmitted via gudgeon pin from out-of-line con-rod or excessive end float.This is symptoms you going to have with your car engine is the oil consumption, engine noisy, and some power loss. Your remedies to your car engine is to check and correct misalignment or excess crankshaft end float. Correct any damage to cylinder bore.Fit new piston taking care to correctly fit new circlips.
Trapped Rings : This problem is when the piston rings trapped in their grooves, rapid peripheril ring wear.That is happen to your car engine from high combustion temperature, your car engine start using oil and loss power. The solution for your engine is to ensure ignition setting and spark pligs are correct.Check induction system is free of air leaks,ensure also correct carburation. You need to fit new piston rings also pistons if damaged.
Pin Seizure : That mean the gudgeon pin seizure due to lack of lubrication during assembly and possibly during initial stages of engine use. Or tight small end.Your car engine going to be noisy followed by loss of power.The right remedies for this symptoms is you need to inspect and correct any damage to the bearing, con-rod, valves and cylinder head. Fit new pistons ensuring the gudgeon pin is the correct fit in the small end, and that the piston and the pin are adequately lubricated. Avoid lenghtly periods of slow engine RPM during running-in.
Rough Honing / Oil Consumption: Immediate smoking or short period of operation before engine start smoking.This problems is caused by incorrect bore surface finish.No honing.Insufficient honing.Scratches or machine marks in bore.And the symptoms are smoking engine,loss power and oil consumption.To rectified this problem you need to correct damaged bores by re-honing.Fit new rings to pistons.Note piston to bore clearance. Rebore to next oversize if necessary.
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