What is the problem of MTU diesel generator piston

1. The clearance between the piston and the cylinder is too small or too large

If the piston is made of poor material, if the manufacturing size is too wrong, or if the piston is deformed after assembling the piston pin, this can cause the matching gap between the piston and the cylinder to be too small, and the piston can get stuck after heating and expansion, which then deforms the cylinder wall.

2. Severe carbon deposition of piston rings

Manufacturers believe that excessive carbon deposition can cause the piston rings to stick in the ring groove or stick. At the same time, the carbon deposits are hard abrades that grind into longitudinal grooves in the cylinder walls.

3. Piston deviates badly from cylinder

Due to the bending and distortion of the connecting rod, the parallelism and coaxiality deviation of the connecting rod journal, spindle journal and piston pin seat are large, resulting in the piston will significantly deviate from the cylinder will accelerate the wear of the piston ring, piston and cylinder wall and destroy the formation of oil film

4. The piston ring clearance is too small

If the piston's open clearance, side clearance, or rear clearance ring is too small, the ring will jam due to thermal expansion and be pressed against the cylinder wall while the engine is operating. Tonnage ring is too tight or the piston ring is damaged, it is easy to pull out the groove on the cylinder wall.

5. Piston pin burst

The manufacturer thinks that because the elastic retainer of the piston pin is not installed or falls off or breaks, the piston pin will bleed during the movement, which is easy to make the inner wall of the cylinder tensioned, resulting in the cylinder leakage crankcase.

Jiangsu Meao Power Technology Co., Ltd. is an important manufacturer of diesel generators. The company mainly manufactures and sells diesel generator sets with power of 3-3000kW, mobile power station of 24-600kW, Marine emergency diesel generator set of 24-800kW, gas generator set, heavy oil generator set and all kinds of imported series, special series (trailer, static speaker, mobile lighthouse, container, etc.) diesel generator At the same time, we are engaged in generator set maintenance and after-sale service of generator set accessories.