Damage in the form of freezing crack. This is the diesel engine caused by winter injury. The cracks in the engine body can only be found where there is no stress in cold welding. First of all, plug the crack at both ends of the crack, and then nail along the crack perpendicular to the crack direction of the debris, welding along the crack firmly, with low carbon steel electrode. When welding, please use the hammer to tap the welding, after welding, please use the flame correction.
205 bearing hole wear upper and lower balance shaft end. This happens immediately. If the bearing hole is slightly worn, it can be expanded by 205. The wire is symmetrically welded to the small spot on the outer ring of the bearing, corrected with a file, and then pressed into the bearing hole. Another method is to make a large plate with an inner hole of 50mm using a 2mm iron plate, and make three wire holes in the plate and body, and fix them with flat-head screws. When the bearing hole is seriously worn, the original hole can be drilled into the sleeve, and three plain holes can be drilled at the connection between the sleeve and the body, and fixed with screws.
Cylinder head bolt holes slip or damaged. This is because too much force is applied to tighten the cylinder head nut or secure the cylinder. If it is a single wire hole sliding line, the wire can be replaced again, and the cylinder head bolts matching the wire hole can be processed. The wire hole is broken, and the multi-wire hole is unable to slip the wire. Sand holes. After opening the hole with a steel cone, seal it with aluminum wire or spot weld.
Post time: Oct-28-2022