The bubble in the diesel engine water tank is usually caused by the high pressure gas in the cylinder running into the cooling water channel. The reasons for the gas channeling and the ways to eliminate it are as follows:

(1) not tighten the cylinder head nut according to the specified torque. If the torque is too small and the cylinder head is not pressed, the high-pressure gas will be channeling into the water channel. The cylinder head nut should be tightened according to the prescribed torque and regularly re tightened.

(2) the use time of the cylinder gasket is too long, it is damaged or burned, and the sealing is bad, resulting in air leakage. We need to replace the new cylinder cushion of Baotou Bei Ben heavy truck fittings.

(3) cylinder head plane processing is uneven or deformed, causing air leakage. Grinding cylinder head plane or replacing Baotou Bei Ben heavy truck fittings cylinder head.

(4) improper assembly, resulting in Baotou Bei Ben heavy truck fittings cylinder shoulder fracture and gas channeling, according to the requirements of the new cylinder liner.

(5) the height of the sleeve shoulder of the cylinder is not enough or the depth of the shoulder hole is too large. After the cylinder fits into the body, the plane height of the body is not enough and even down, and the gas will move into the waterway from the shoulder. Therefore, pre assembly test fitting, check the bulge volume and ensure that it is within the allowable range.