Скачать с ютуб Measuring Toyota Cylinder Bore,Taper and Out-of-round в хорошем качестве

Measuring Toyota Cylinder Bore,Taper and Out-of-round

#cylinderblock #MMVtrade #toyotaengine Also watch my next video on EGR valve overhauling    • Exhaust Gas Recirculation(EGR) Valve ...   Measuring a cylinder bore size for taper and ovality When measuring the diameter of a cylinder with a telescopic gauge, the gauge is extended and locked to measure the inside cylinder after which measurements are made using a micrometre. Cylinder taper is the difference in diameter between the top of a cylinder and the bottom of the cylinder. Cylinder taper is caused by less lubricating oil at the top of the cylinder and more oil splashing at the bottom. Cylinder taper should not exceed the manufacturer’s specifications, which means it should not go beyond bounds or limits. The manufacturer’s service manual should be consulted for exact specifications. Use a bore gauge or inside micrometre to measure the inside diameter of a cylinder. Cylinder ovality or cylinder out of roundness is the difference in diameter between a cylinder being measured side to side and from the front to the rear in the block. Piston thrust action makes the cylinders wear more at the right angles to the centre line of the crankshaft. The positions where to measure a cylinder bore for size taper and ovality as illustrated in the video. Measure the diameter of the cylinder at the top and the bottom of the cylinder. Then calculate for cylinder taper and ovality as illustrated in video. Compare the amount of taper and ovality to the manufacturer’s specifications to determine whether the cylinder is acceptable or if the engine block needs to be bored.