1 The upper and lower balance shaft ends 205 wear out the bearing holes. This situation must be repaired immediately. When the bearing hole is worn lightly, the 205 bearing outer circle method can be used to repair. In the outer ring of the bearing, the symmetry point of the steel wire is set at a small point by using oxygen welding. Correct it with a file and press it into the bearing hole. Another method is to use a 2 mm thick iron plate as a large flat washer with an inner hole of 50 mm. Make three holes in the flat pad and the body and fix it with a flat head screw. When the bearing hole wears badly, the original hole insert can be enlarged, and three small holes can be made in the joint of the inserted bushing and the body and fixed by screws. 2 cylinder head bolt holes slip or broken. This situation is caused by excessive force or ramming when tightening the cylinder head nut. If it is an individual silk hole, the wire can be changed again and a cylinder head bolt matched with the wire hole can be processed. If the hole is broken or the holes are slipped, it cannot be repaired. 3 trachoma. The steel cone is first used to expand the hole, then plugged with aluminum wire, or plugged with spot welding. Fresh Ginger,Ground Ginger Root,Minced Fresh Ginger,Minced Ginger Root Yirun Agricultural Cooperative , https://www.yiruncn.com