Diesel tank bubbled, generally, a high pressure gas in the cylinder into the cooling water channel. Gas channeling the cause and the elimination method is as follows.

     1, the torque screw down the bolt nut not according to stipulations. If the torque is too small, no pressure, cylinder head high pressure gas will into the waterway. Should be in accordance with the provisions, torque screw down the bolt nut and tighten again on a regular basis.
     2, cylinder pad to use time is too long, be broken or burning, sealing, cause air leakage. To replace a new cylinder pad.
     3, the cylinder head surface processing rough or deformation, cause air leakage. Grinding cylinder head should be flat or replace the cylinder head.
     4, the assembly is undeserved, cause cylinder shoulder fracture and gas. Methods according to the rules in the new cylinder liner.

     5, liner shoulder height is not enough or body came to shoulder hole depth is too big, cause the cylinder set into the body, protrude the body plane height is not enough, even subsidence, gas will be from the shoulder into the waterway. As a result, the examination before assembly, check out the amount, and ensure that they are within the scope of the permit.