If leakage of radiator core tube is found, the inspection should be removed. First determine the leakage of 117kPa cloth will be the surface treatment clean, with soldering iron solder. After welding and repair generally with compressed air (117kPa pressure) for test pressure, continuous 1min must not leak, otherwise re-repair. The patched welds should be securely reliable, aesthetically pleasing and remove surface burrs. Allows the core tube of the through coolant to be cut off, but not. 1M22 root. The cut pipe head shall be welded to death and shall not leak. The weld of the radiator shall be calculated according to the front area of each 0.1m2 of the core, not more than 1. Otherwise, there is no repair value, can only scrap treatment.