- Check the holes in the cylinder block to taper, roundness, scuffs and scratches. Start with a thorough examination of the upper part of the holes. If they are worn, their stubborn side forms a small ridge that marks the upper level of the motion of the piston ring. The owner of the car is easy to recognize the wear mirror cylinders before dismantling the engine. Excessive oil consumption and blue smoke from the exhaust system is a sure sign of wear of piston rings and cylinder.
- Measure the diameter of the cylinder under the "wear ring" and compare it with a micrometer in diameter holes at the bottom of the cylinder, where cylinder wear out. If the difference between the two measurements is greater than 0.15 mm, it is necessary to bore the cylinders and pistons deliver oversize.
- Holes cylinders should be handled so as to ensure optimum performance gap with new oversize pistons. The difference in weight between any two of the six pistons must not exceed the limits given in the specifications.
- If the holes in the cylinder slightly worn, but not so much that they had to chisel, you can install a special oil scraper rings and pistons, which will restore the necessary compression and suspended waste engine oil. For this purpose, there are several different sizes of repair parts, and be sure to adhere to the manufacturer's instructions for installing them.
- Look, whether in the cylinder block and crankcase cracks and other damage, and make sure all the water permeability and oil channels. Check the securing of all gaskets covers on the crankcase and the cylinder block. If any of the pads are in doubt or have a leak, remove the screws securing the cover and remove it. Clean the cover and the seating surface, place a new gasket, insert and tighten the screws. Check for leaks through the cooling jacket plugs.
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