Cylinder block — checking technical condition (Peugeot 206)

Wash the cylinder block thoroughly, clean the lubrication channels. Blow and dry with compressed air, inspect the cylinder block. Cracks in any places of the cylinder block are not allowed.

If there is a suspicion of coolant getting into the crankcase, then check the cylinder block for leaks on a special stand. To do this, having plugged the openings of the cooling jacket of the cylinder block, feed water at room temperature into it under a pressure of 0.3 MPa. There should be no water leakage from the block within two minutes.

If oil gets into the coolant, check for cracks in the cylinder block in the oil channel areas without completely disassembling the engine. To do this, drain the liquid from the cooling system, remove the cylinder head, fill the cooling jacket of the cylinder block with water and supply compressed air to the vertical oil channel of the cylinder block. If air bubbles appear in the water filling the cooling jacket, replace the cylinder block.

Check the plane of the cylinder block joint with the head using a ruler and a set of feeler gauges. The ruler is installed along the diagonals of the plane, in the middle in the longitudinal direction and across.

Cylinder repair. Check whether the cylinder or liner wear exceeds the maximum allowable value of 0.15 mm. The cylinder diameter is measured with a bore gauge in four zones, both longitudinally and transversely of the engine.

(Source can be seen at: www.PeugeotBook.ru)