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Pressing and reaming the valve guide bushings turned out to be a very labor-intensive process :) Key points: 1) A BIGGER hammer. 2) Open the windows all the way, the aroma when baking in the oven is soulful. 3) Hammer only on a hard surface, pressing the head tightly to the floor. 4) Install repair bushings only where the holes in the head are REALLY sunken (where the standard bushing passes without knocking). 5) You need an 8.03 mm reamer. I am in contact: https://vk.com/graber80